EN14511 Heat Pump (2P)

R2026b

EN14511 heat pump in gas, moist air, or thermal liquid networks

Since R2026b

Libraries:
Simscape / Fluids / Two-Phase Fluid / Thermodynamic Cycles

Description

The EN14511 Heat Pump (2P) block models a heat pump based on EN14511 performance data. EN14511 is a testing standard for the rating and performance of heat pumps. The block can operate in heating or cooling mode.

The block defines the outdoor and indoor fluid temperatures according to the EN14511 standards. For all settings of the Outdoor heat exchanger fluid parameter, the outdoor fluid temperature denotes the inlet temperature of the outdoor heat exchanger. When Outdoor heat exchanger fluid is Gas or Moist air, the indoor fluid temperature denotes the inlet temperature of the indoor heat exchanger. When Outdoor heat exchanger fluid is Thermal liquid, the indoor fluid temperature denotes the outlet temperature of the indoor heat exchanger. Ports Ai and Ao are always inlets and ports Bi and Bo are always outlets.

Heating and Cooling Parameterizations

Use the Mode parameter to specify whether the block functions in heating, cooling, or heating and cooling mode. If you set Mode to Heating and cooling, the signal at port M controls the block mode. When the signal is non-negative, the block operates in heating mode. When the signal is negative, the block operates in cooling mode.

When Outdoor heat exchanger fluid or Indoor heat exchanger fluid is Physical signal, you specify the outdoor or indoor fluid temperature by using the input ports Ti or To. The temperature can be the inlet or outlet heat exchanger temperature, depending on the EN14511 standards for the heat pump that you are modeling. Otherwise, the block calculations for capacity and efficiency depend on the Heating mode parameterization or Cooling mode parameterization parameters.

Using Nominal Values

When Heating mode parameterization or Cooling mode parameterization is Nominal, the block calculates the second-law efficiency from the nominal conditions and uses it to determine the heat pump capacity.

When the block is in heating mode, the heating capacity, Q_H, is

$Q_{H} = COP * C_{S} * W_{n o m H},$

where:

C_S is the compressor capacity, which is the value of the signal at port S.
W_nomH is the value of the Nominal heating power input parameter.

The coefficient of performance is

$COP= η_{h e a t i n g} \frac{T_{i n d o o r}}{T_{i n d o o r} - T_{o u t d o o r}},$

where:

T_outdoor is the outdoor temperature.
T_indoor is the indoor temperature.

The block caps the COP at the value of the Maximum COP parameter.

The second-law efficiency is

$η_{h e a t i n g} = \frac{Q_{n o m H} / W_{n o m H}}{T_{i n d o o r, n o m} / (T_{i n d o o r, n o m} - T_{o u t d o o r, n o m})},$

where:

Q_nomH is the value of the Nominal heating capacity parameter.
T_indoor,nom is the value of the Nominal indoor fluid temperature parameter.
T_outdoor,nom is the value of the Nominal outdoor fluid temperature parameter.

When the block is in cooling mode, the cooling capacity, Q_C, is

$Q_{C} = EER * C_{S} * W_{n o m C}$

where W_nomC is the value of the Nominal cooling power input parameter.

The energy efficiency ratio is

$EER= η_{c o o l i n g} \frac{T_{i n d o o r}}{T_{o u t d o o r} - T_{i n d o o r}} .$

The block caps the EER at the value of the Maximum EER parameter.

The second-law efficiency for cooling is

$η_{c o o l i n g} = \frac{Q_{n o m C} / W_{n o m C}}{T_{i n d o o r, n o m} / (T_{o u t d o o r, n o m} - T_{i n d o o r, n o m})},$

where Q_nomC is the value of the Nominal cooling capacity parameter.

Using Linear Fitting

When Heating mode parameterization or Cooling mode parameterization is Linear fitting - capacity and efficiency, the block uses linear fits on the indoor and outdoor fluid temperatures and the compressor capacity to determine the capacity and efficiency.

When the block is in heating mode, the heating capacity and power are

$\begin{array}{l} Q_{H} = C_{S} (a_{1} + a_{2} T_{o u t d o o r} + a_{3} T_{i n d o o r}) \\ W = C_{S} (b_{1} + b_{2} T_{o u t d o o r} + b_{3} T_{i n d o o r}) \end{array}$

where a_i and b_i are coefficients. The block solves for the coefficients by performing a least squares fit, which is equivalent to solving the system

$\begin{array}{l} [\begin{matrix} \vec{C} & \vec{C} \circ {\vec{T}}_{o u t d o o r} & \vec{C} \circ {\vec{T}}_{i n d o o r} \end{matrix}] [\begin{matrix} a_{1} \\ a_{2} \\ a_{3} \end{matrix}] = {\vec{Q}}_{H} \\ [\begin{matrix} \vec{C} & \vec{C} \circ {\vec{T}}_{o u t d o o r} & \vec{C} \circ {\vec{T}}_{i n d o o r} \end{matrix}] [\begin{matrix} b_{1} \\ b_{2} \\ b_{3} \end{matrix}] = {\vec{W}}_{H} \end{array}$

where:

${\vec{T}}_{o u t d o o r}$ is the Outdoor fluid temperature vector parameter.
${\vec{T}}_{i n d o o r}$ is the Indoor fluid temperature vector parameter.
$\vec{C}$ is the Compressor capacity vector parameter.
${\vec{Q}}_{H}$ is the Heating capacity vector parameter.
${\vec{W}}_{H}$ is the Heating power input vector parameter.

The symbol ⚬ denotes element-wise multiplication.

When the block is in cooling mode, the cooling capacity and power are

$\begin{array}{l} Q_{C} = C_{S} (a_{1} + a_{2} T_{o u t d o o r} + a_{3} T_{i n d o o r}) \\ W = C_{S} (b_{1} + b_{2} T_{o u t d o o r} + b_{3} T_{i n d o o r}) \end{array}$

The block solves for the a_i and b_i coefficients in the same way as in heating mode, but uses the Cooling capacity vector and Cooling power input vector parameters.

Using Tabulated Data

When Heating mode parameterization or Cooling mode parameterization is Tabulated data - capacity and efficiency, the block uses lookup tables to calculate the capacity and efficiency.

When the block is in heating mode and you clear Scale heating capacity linearly with compressor capacity, the heating capacity and the heating power at the outdoor temperature, T_outdoor, and the indoor temperature, T_indoor, are

$\begin{array}{l} Q_{H} = tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, C_{T L U}, Q_{H, T L U, 3 D}, T_{o u t d o o r}, T_{i n d o o r}, C_{S}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \\ W = tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, C_{T L U}, W_{H, T L U, 3 D}, T_{o u t d o o r}, T_{i n d o o r}, C_{S}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \end{array}$

where:

T_outdoor,TLU is the Outdoor fluid temperature vector, Tod parameter.
T_indoor,TLU is the Indoor fluid temperature vector, Tid parameter.
C_TLU is the Compressor capacity vector, s parameter.
Q_H,TLU,3D is the Heating capacity 3D table, q(Tod, Tid, s) parameter.
W_H,TLU,3D is the Heating power input 3D table, w(Tod, Tid, s) parameter.

When the block is in heating mode and you select Scale heating capacity linearly with compressor capacity, the block linearly scales the heating capacity and the power input with respect to the compressor capacity. The heating capacity and the heating power are

$\begin{array}{l} Q_{H} = C_{S} * tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, Q_{H, T L U, 2 D}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \\ W = C_{S} * tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, W_{H, T L U, 2 D}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \end{array}$

where:

Q_H,TLU,2D is the Heating capacity 2D table, q(Tod, Tid) parameter.
W_H,TLU,2D is the Heating power input 2D table, w(Tod, Tid) parameter.

When the block is in cooling mode and you clear Scale heating capacity linearly with compressor capacity, the cooling capacity and the cooling power are

$\begin{array}{l} Q_{C} = tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, C_{T L U}, Q_{C, T L U, 3 D}, C_{S}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \\ W = tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, C_{T L U}, W_{C, T L U, 3 D}, C_{S}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \end{array}$

where:

Q_C,TLU,3D is the Cooling capacity 3D table, q(Tod, Tid, s) parameter.
W_C,TLU,3D is the Cooling power input 3D table, w(Tod, Tid, s) parameter.

When the block is in cooling mode and you select Scale heating capacity linearly with compressor capacity, the cooling capacity and the cooling power are

$\begin{array}{l} Q_{C} = C_{S} * tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, Q_{C, T L U, 2 D}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \\ W = C_{S} * tablelookup (T_{o u t d o o r, T L U}, T_{i n d o o r, T L U}, W_{C, T L U, 2 D}, T_{o u t d o o r}, T_{i n d o o r}, i n t e r p o l a t i o n = l i n e a r, e x t r a p o l a t i o n = n e a r e s t) \end{array}$

where:

Q_C,TLU,2D is the Cooling capacity 2D table, q(Tod, Tid) parameter.
W_C,TLU,2D is the Cooling power input 2D table, w(Tod, Tid) parameter.

Pressure Loss

The pressure loss inside the outdoor and indoor heat exchanger depends on the values of the Outdoor heat exchanger fluid and Indoor heat exchanger fluid parameters.

Thermal Liquid Pressure Loss

When Outdoor heat exchanger fluid or Indoor heat exchanger fluid is Thermal Liquid and you clear Enable dynamic compressibility, the pressure loss across the heat exchanger is

$p_{A} - p_{B} = K {\dot{m}}_{A} \sqrt{{\dot{m}}_{A}^{2} + {\dot{m}}_{l a m}^{2}},$

where:

$\dot{m}$ _A is the mass flow rate at port Ao or Ai, depending on the heat exchanger.
$\dot{m}$ _lam is the value of the Fraction of nominal mass flow rate for laminar flow transition parameter.
$K = \frac{Δ p_{n o m}}{{\dot{m}}_{n o m}^{2}}$ is a proportionality constant, where Δp_nom is the value of the Nominal pressure drop parameter and Δ $\dot{m}$ _nom is the value of the Nominal mass flow rate parameter.

When you select Enable dynamic compressibility, the block calculates the pressure loss over each half of the heat exchanger by using the pressure at the fluid ports and the internal node, p_I,

$\begin{array}{l} p_{A} - p_{I} = \frac{1}{2} K {\dot{m}}_{A} \sqrt{{\dot{m}}_{A}^{2} + {\dot{m}}_{l a m}^{2}} \\ p_{B} - p_{I} = \frac{1}{2} K {\dot{m}}_{B} \sqrt{{\dot{m}}_{B}^{2} + {\dot{m}}_{l a m}^{2}} \end{array}$

Gas Pressure Loss

When Outdoor heat exchanger fluid or Indoor heat exchanger fluid is Gas and you clear Enable dynamic compressibility, the pressure loss across the heat exchanger is

$p_{A} - p_{B} = \frac{ρ_{n o m}}{ρ} K {\dot{m}}_{A} \sqrt{{\dot{m}}_{A}^{2} + {\dot{m}}_{l a m}^{2}},$

where:

ρ_nom is the nominal density of the fluid, which the block calculates by using atmospheric pressure and the Nominal temperature parameter.
ρ is the fluid density at the inlet.

When you select Enable dynamic compressibility, the pressure loss over each half of the heat exchanger is

$\begin{array}{l} p_{A} - p_{I} = \frac{1}{2} \frac{ρ_{n o m}}{ρ} K {\dot{m}}_{A} \sqrt{{\dot{m}}_{A}^{2} + {\dot{m}}_{l a m}^{2}} \\ p_{B} - p_{I} = \frac{1}{2} \frac{ρ_{n o m}}{ρ} K {\dot{m}}_{B} \sqrt{{\dot{m}}_{B}^{2} + {\dot{m}}_{l a m}^{2}} \end{array}$

Moist Air Pressure Loss

When Outdoor heat exchanger fluid or Indoor heat exchanger fluid is Moist air, the pressure loss across the heat exchanger is

$p_{A} - p_{B} = \frac{ρ_{n o m}}{ρ} K {\dot{m}}_{A} \sqrt{{\dot{m}}_{A}^{2} + {\dot{m}}_{l a m}^{2}} .$

The block calculates the nominal density from the Nominal wet-bulb temperature and Nominal dry-bulb temperature parameters.

Examples

New

Convert a Heat Pump Model to Use the EN14511 Heat Pump (2P) Block

Parameterize the EN14511 Heat Pump (2P) block to meet specific performance conditions. In this example, you parameterize the EN14511 Heat Pump (2P) block to meet the same performance conditions as the ResidentialAirSourceHeatPump model. For more information on the ResidentialAirSourceHeatPump model, see Residential Air Source Heat Pump.

Since R2026b
Open Live Script

New

Building Water Management

Simulates a water and energy saving system in a commercial building, such as a hotel. The wastewater is recycled with a filtering system, and the heat contained in the wastewater is recovered with a refrigeration system. A solar panel and battery storage system mitigate the energy cost of running the filtering and refrigeration system.

Since R2026b
Open Model

Ports

Input

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S — Compressor capacity, unitless
physical signal

Physical signal input port that specifies the compressor capacity. When the signal is 0, the compressor is off. When the signal is 1, the compressor operates at the nominal capacity.

Programmatic Use

Port: S

M — Heat pump mode, unitless
physical signal

Physical signal input port that specifies the heat pump mode. When the signal at port M is non-negative, the block operates in heating mode. When the signal at port M is negative, the block operates in cooling mode.

Dependencies

To enable this port, set Mode to Heating and Cooling.

Programmatic Use

Port: M

Ti — Indoor fluid temperature, K
physical signal

Physical signal input port that specifies the indoor fluid temperature.

Dependencies

To enable this port, set Indoor heat exchanger fluid to Physical signal.

Programmatic Use

Port: Ti

To — Outdoor fluid temperature, K
physical signal

Physical signal input port that specifies the outdoor fluid temperature.

Dependencies

To enable this port, set Outdoor heat exchanger fluid to Physical signal.

Programmatic Use

Port: To

Conserving

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Ao — Outdoor heat exchanger inlet
gas | moist air | thermal liquid

Gas, moist air, or thermal liquid conserving port associated with the outdoor heat exchanger inlet. The Outdoor heat exchanger fluid parameter determines the domain of the port.

Programmatic Use

Port: Ao_TL

Bo — Outdoor heat exchanger outlet
gas | moist air | thermal liquid

Gas, moist air, or thermal liquid conserving port associated with the outdoor heat exchanger outlet. The Outdoor heat exchanger fluid parameter determines the domain of the port.

Programmatic Use

Port: Bo_TL

Ai — Indoor heat exchanger inlet
gas | moist air | thermal liquid

Gas, moist air, or thermal liquid conserving port associated with the indoor heat exchanger inlet. The Indoor heat exchanger fluid parameter determines the domain of the port.

Programmatic Use

Port: Ai_TL

Bi — Indoor heat exchanger outlet
gas | moist air | thermal liquid

Gas, moist air, or thermal liquid conserving port associated with the indoor heat exchanger outlet. The Indoor heat exchanger fluid parameter determines the domain of the port.

Programmatic Use

Port: Bi_TL

Output

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Q — Heating or cooling capacity, kW
physical signal

Physical signal output port that measures either the heating or cooling capacity, in kW. When the heat pump is in heating mode, port Q outputs the heating capacity. When the heat pump is in cooling mode, port Q outputs the cooling capacity.

Programmatic Use

Port: Q

E — COP or EER, unitless
physical signal

Physical signal output port that measures either the coefficient of performance or the energy efficiency ratio. When the heat pump is in heating mode, port E outputs the COP. When the heat pump is in cooling mode, port E outputs the EER.

Programmatic Use

Port: E

Parameters

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Parameters

Mode — Heat pump mode
`Heating` (default) | `Cooling` | `Heating and Cooling`

Heat pump operating mode.

Programmatic Use

Parameter:	`mode`
Values:	`"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpMode.Heating"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpMode.Cooling"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpMode.HeatingAndCooling"`

Heating Mode

Heating mode parameterization — Parameterization option for heating mode
`Nominal` (default) | `Linear fitting - capacity and efficiency` | `Tabulated data - capacity and efficiency`

Parameterization option when the block is in heating mode:

Nominal — The block calculates the heat pump capacity and efficiency from nominal operating conditions.
Linear fitting - capacity and efficiency — The block uses linear fits on the indoor and outdoor fluid temperatures and the compressor capacity to determine the capacity and efficiency.
Tabulated data - capacity and efficiency — The block uses lookup tables to calculate the capacity and efficiency from indoor and outdoor fluid temperatures and, optionally, the compressor capacity data.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling.

Programmatic Use

Parameter:	`param_heating`
Values:	`"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Nominal"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Fitting"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Table"`

Nominal heating capacity — Nominal heating capacity
`5` `kW` (default) | positive scalar

Heating capacity at nominal operating conditions.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Nominal.

Programmatic Use

Parameter: Q_nominal_heating

Nominal heating power input — Nominal heating power input
`3` `kW` (default) | positive scalar

Heating power input at nominal operating conditions.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Nominal.

Programmatic Use

Parameter: power_nominal_heating

Nominal outdoor fluid temperature — Nominal outdoor fluid temperature
`7` `degC` (default) | positive scalar

Outdoor fluid temperature at nominal operating conditions when the block is in heating mode. The block uses this value to calculate the second-law efficiency.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: T_od_nominal_heating

Nominal indoor fluid temperature — Nominal indoor fluid temperature
`35` `degC` (default) | positive scalar

Indoor fluid temperature at nominal operating conditions when the block is in heating mode. The block uses this value to calculate the second-law efficiency.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: T_id_nominal_heating

Maximum COP — Maximum coefficient of performance
`10` (default) | positive scalar

Maximum value of the calculated coefficient of performance (COP) when the block is in heating mode. The block caps the dynamically calculated COP at this value.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Nominal.

Programmatic Use

Parameter: COP_max

Outdoor fluid temperature vector — Outdoor fluid temperature data for linear fit
`[-15, 12, -7, 12, 2, 7, -7]` `degC` (default) | vector

Outdoor fluid temperature data that the block uses as an independent variable to fit the heating capacity data. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Compressor capacity vector, Heating capacity vector, and Heating power input vector parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: T_od_fit_heating

Indoor fluid temperature vector — Indoor fluid temperature data for linear fit
`[35, 55, 35, 35, 45, 55, 55]` `degC` (default) | vector

Indoor fluid temperature data that the block uses as an independent variable to fit the heating capacity data. The elements in this vector correspond one-to-one with the elements in the Outdoor fluid temperature vector, Compressor capacity vector, Heating capacity vector, and Heating power input vector parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: T_id_fit_heating

Compressor capacity vector — Compressor capacity data
`[.7, .7, 1, 1, .7, 1, 1]` (default) | vector

Compressor capacity data that the block uses to scale the linearly fit heating capacity and power input. A value of 1 means the compressor is operating at the nominal capacity and a value of 0 means the compressor is off. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Heating capacity vector, and Heating power input vector parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: comp_fit_heating

Heating capacity vector — Heating capacity data for linear fit
`[3.16, 6.72, 6.74, 7.97, 5.65, 8.71, 5.38]` `kW` (default) | vector

Heating capacity data that the block uses as a dependent variable in the linear fit for heating capacity. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Compressor capacity vector, and Heating power input vector parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: Q_fit_heating

Heating power input vector — Heating power input data for linear fit
`[1.41, 2.24, 2.12, 1.44, 1.81, 3.4, 3.12]` `kW` (default) | vector

Heating power input data that the block uses as a dependent variable in the linear fit for heating power input. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Compressor capacity vector, and Heating capacity vector parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: power_fit_heating

Outdoor fluid temperature vector, Tod — Outdoor fluid temperature for table lookup
`[-7, 2, 7]` `degC` (default) | vector

Outdoor fluid temperature data that the block uses as an independent variable for the table lookup function. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Tid and Compressor capacity vector, s parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter: T_od_TLU_heating

Indoor fluid temperature vector, Tid — Indoor fluid temperature for table lookup
`[35, 45, 55]` `degC` (default) | vector

Indoor fluid temperature data that the block uses as an independent variable for the table lookup function. The elements in this vector correspond one-to-one with the elements in the Outdoor fluid temperature vector, Tod and Compressor capacity vector, s parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter: T_id_TLU_heating

Scale heating capacity linearly with compressor capacity — Option to supply compressor capacity data
`on` (default) | `off`

Option to specify the capacity with the Compressor capacity vector, s parameter. If you select the parameter, the block linearly scales the heating capacity and the power input with respect to the compressor capacity. Select this parameter if you do not have performance data across different compressor capacities.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling and Heating mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter:	`enable_compressor_capacity_scaling_heating`
Values:	`"true"` \| `"false"`

Compressor capacity vector, s — Compressor capacity data for table lookup
`[0, .7, 1]` (default) | vector

Compressor capacity data that the block uses as an independent variable for the table lookup function. A value of 1 means the compressor is operating at the nominal capacity and a value of 0 means the compressor is off. The elements in this vector correspond one-to-one with the elements in the Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters.

Dependencies

To enable this parameter, set Mode to Heating or Heating and Cooling, Heating mode parameterization to Tabulated data - capacity and efficiency, and clear Scale heating capacity linearly with compressor capacity.

Programmatic Use

Parameter: comp_TLU_heating

Heating capacity 2D table, q(Tod, Tid) — Heating capacity data for 2-D table lookup
`[4.41, 3.94, 3.47; 5.96, 5.65, 4.96; 7.17, 6.65, 5.82]` `kW` (default) | 2-D matrix

Heating capacity data that the block uses as a dependent variable in the table lookup for heating capacity. The Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters specify the locations of these data points.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling, Cooling mode parameterization to Tabulated data - capacity and efficiency, and select Scale cooling capacity linearly with compressor capacity.

Programmatic Use

Parameter:	`Q_2D_TLU_heating`
Values:

Heating power input 2D table, w(Tod, Tid) — Heating power data for 2-D table lookup
`[1.42, 1.7, 2.04; 1.46, 1.81, 2.18; 1.46, 1.83, 2.24]` `kW` (default) | 2-D matrix

Heating power data that the block uses as a dependent variable in the table lookup for heating power. The Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter:	`power_2D_TLU_heating`
Values:

Heating capacity 3D table, q(Tod, Tid, s) — Heating capacity data for 3-D table lookup
`cat(3, zeros(3, 3), [4.41, 3.94, 3.47; 5.96, 5.65, 4.96; 7.17, 6.65, 5.82], [6.74, 5.99, 5.38; 8.53, 7.74, 6.82; 10.13, 9.59, 8.71])` `kW` (default) | 3-D matrix

Heating capacity data that the block uses as a dependent variable in the table lookup for heating capacity. The Outdoor fluid temperature vector, Tod, Indoor fluid temperature vector, Tid, and Compressor capacity vector, s parameters specify the locations of these data points.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling, Cooling mode parameterization to Tabulated data - capacity and efficiency, and clear Scale cooling capacity linearly with compressor capacity.

Programmatic Use

Parameter:	`Q_3D_TLU_heating`
Values:

Heating power input 3D table, w(Tod, Tid, s) — Heating power data for 3-D table lookup
`cat(3, zeros(3, 3), [1.42, 1.7, 2.04; 1.46, 1.81, 2.18; 1.46, 1.83, 2.24], [2.12, 2.55, 3.12; 2.2, 2.57, 3.09; 2.22, 2.76, 3.4])` `kW` (default) | 3-D matrix

Heating power data that the block uses as a dependent variable in the table lookup for heating power. The Outdoor fluid temperature vector, Tod, Indoor fluid temperature vector, Tid, and Compressor capacity vector, s parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter:	`power_3D_TLU_heating`
Values:

Cooling Mode

Cooling mode parameterization — Parameterization option for cooling mode
`Nominal` (default) | `Linear fitting - capacity and efficiency` | `Tabulated data - capacity and efficiency`

Parameterization option when the block is in cooling mode:

Nominal — The block calculates the heat pump capacity and efficiency from nominal operating conditions.
Linear fitting - capacity and efficiency — The block uses linear fits on the indoor and outdoor fluid temperatures and the compressor capacity to determine the capacity and efficiency.
Tabulated data - capacity and efficiency — The block uses lookup tables to calculate the capacity and efficiency from indoor and outdoor fluid temperatures and, optionally, the compressor capacity data.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling.

Programmatic Use

Parameter:	`param_cooling`
Values:	`"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Nominal"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Fitting"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpParameterization.Table"`

Nominal cooling capacity — Nominal cooling capacity
`5` `kW` (default) | positive scalar

Cooling capacity at nominal operating conditions.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: Q_nominal_cooling

Nominal cooling power input — Nominal cooling power input
`3` `kW` (default) | positive scalar

Cooling power input at nominal operating conditions.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: power_nominal_cooling

Nominal outdoor fluid temperature — Nominal outdoor fluid temperature
`35` `degC` (default) | positive scalar

Outdoor fluid temperature at nominal operating conditions when the block is in cooling mode. The block uses this value to calculate the second-law efficiency.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: T_od_nominal_cooling

Nominal indoor fluid temperature — Nominal indoor fluid temperature
`18` `degC` (default) | positive scalar

Indoor fluid temperature at nominal operating conditions when the block is in cooling mode. The block uses this value to calculate the second-law efficiency.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: T_id_nominal_cooling

Maximum EER — Maximum energy efficiency ratio
`10` (default) | positive scalar

Maximum value of the calculated energy efficiency ratio (EER) when the block is in cooling mode. The block caps the dynamically calculated EER at this value.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Nominal.

Programmatic Use

Parameter: EER_max

Outdoor fluid temperature vector — Outdoor fluid temperature data for linear fit
`[27, 27, 35, 35, 27, 27, 35, 35]` `degC` (default) | vector

Outdoor fluid temperature data that the block uses as an independent variable to fit the cooling capacity data. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Compressor capacity vector, Cooling capacity vector, and Cooling power input vector parameters.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: T_od_fit_cooling

Indoor fluid temperature vector — Indoor fluid temperature data for linear fit
`[7, 18, 7, 18, 7, 18, 7, 18]` `degC` (default) | vector

Indoor fluid temperature data that the block uses as an independent variable to fit the cooling capacity data. The elements in this vector correspond one-to-one with the elements in the Outdoor fluid temperature vector, Compressor capacity vector, Cooling capacity vector, and Cooling power input vector parameters.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: T_id_fit_cooling

Compressor capacity vector — Compressor capacity data
`[.7, .7, .7, .7, 1, 1, 1, 1]` (default) | vector

Compressor capacity data that the block uses to scale the linearly fit cooling capacity and power input. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Cooling capacity vector, and Cooling power input vector parameters.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter: comp_fit_cooling

Cooling capacity vector — Cooling capacity data for linear fit
`[4.9, 7.21, 4.59, 6.89, 7.01, 10.3, 6.56, 9.84]` `kW` (default) | vector

Cooling capacity data that the block uses as a dependent variable in the linear fit for cooling capacity. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Compressor capacity vector, and Cooling power input vector parameters.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter:	`Q_fit_cooling`
Values:

Cooling power input vector — Cooling power input data for linear fit
`[1.54, 1.68, 1.71, 1.76, 2.2, 2.4, 2.44, 2.51]` `kW` (default) | vector

Cooling power input data that the block uses as a dependent variable in the linear fit for cooling power input. The elements in this vector correspond one-to-one with the elements in the Indoor fluid temperature vector, Outdoor fluid temperature vector, Compressor capacity vector, and Cooling capacity vector parameters.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Linear fitting - capacity and efficiency.

Programmatic Use

Parameter:	`power_fit_cooling`
Values:

Outdoor fluid temperature vector, Tod — Outdoor fluid temperature for table lookup
`[27, 35]` `degC` (default) | vector

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter: T_od_TLU_cooling

Indoor fluid temperature vector, Tid — Indoor fluid temperature for table lookup
`[7, 18]` `degC` (default) | vector

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter: T_id_TLU_cooling

Scale cooling capacity linearly with compressor capacity — Option to supply compressor capacity data
`on` (default) | `off`

Option to specify the capacity with the Compressor capacity vector, s parameter. If you select the parameter, the block linearly scales the cooling capacity and the power input with respect to the compressor capacity. Select this parameter if you do not have performance data across different compressor capacities.

Dependencies

To enable this parameter, set Mode to Cooling or Heating and Cooling and Cooling mode parameterization to Tabulated data - capacity and efficiency.

Programmatic Use

Parameter:	`enable_compressor_capacity_scaling_cooling`
Values:	`"true"` \| `"false"`

Compressor capacity vector, s — Compressor capacity data for table lookup
`[0, .7, 1]` (default) | vector

Compressor capacity data that the block uses as an independent variable for the table lookup function. The elements in this vector correspond one-to-one with the elements in the Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters.

Dependencies

Programmatic Use

Parameter: comp_TLU_cooling

Cooling capacity 2D table, q(Tod, Tid) — Cooling capacity data for 2-D table lookup
`[7.01, 10.3; 6.56, 9.84]` `kW` (default) | 2-D matrix

Cooling capacity data that the block uses as a dependent variable in the table lookup for cooling capacity. The Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter: Q_2D_TLU_cooling

Cooling power input 2D table, w(Tod, Tid) — Cooling power data for 2-D table lookup
`[2.2, 2.4; 2.44, 2.51]` `kW` (default) | 2-D matrix

Cooling power data that the block uses as a dependent variable in the table lookup for cooling power. The Outdoor fluid temperature vector, Tod and Indoor fluid temperature vector, Tid parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter: power_2D_TLU_cooling

Cooling capacity 3D table, q(Tod, Tid, s) — Cooling capacity data for 3-D table lookup
`cat(3, zeros(2, 2), [4.9, 7.21; 4.59, 6.89], [7.01, 10.3; 6.56, 9.84])` `kW` (default) | 3-D matrix

Cooling capacity data that the block uses as a dependent variable in the table lookup for cooling capacity. The Outdoor fluid temperature vector, Tod, Indoor fluid temperature vector, Tid, and Compressor capacity vector, s parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter:	`Q_3D_TLU_cooling`
Values:

Cooling power input 3D table, w(Tod, Tid, s) — Cooling power data for 3-D table lookup
`cat(3, zeros(2, 2), [1.54, 1.68; 1.71, 1.76], [2.2, 2.4; 2.44, 2.51])` `kW` (default) | 3-D matrix

Cooling power data that the block uses as a dependent variable in the table lookup for cooling power. The Outdoor fluid temperature vector, Tod, Indoor fluid temperature vector, Tid, and Compressor capacity vector, s parameters specify the locations of these data points.

Dependencies

Programmatic Use

Parameter:	`power_3D_TLU_cooling`
Values:

Outdoor Heat Exchanger

Outdoor heat exchanger fluid — Outdoor side heat exchanger fluid
`Moist air` (default) | `Gas` | `Thermal liquid` | `Physical signal`

Fluid to model in the outdoor side of the heat exchanger.

Programmatic Use

Parameter:	`fluid_od`
Values:	`"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.MA"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.G"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.TL"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.PS"`

Nominal pressure drop — Pressure drop between heat exchanger ports
`0.001` `MPa` (default) | positive scalar

Pressure drop from port Ao to port Bo during nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: delta_p_nominal_od

Nominal mass flow rate — Mass flow rate between heat exchanger ports
`0.1` `kg/s` (default) | positive scalar

Mass flow rate from port Ao to port Bo during nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: mdot_nominal_od

Nominal temperature — Temperature at nominal operating conditions
`293.15` `K` (default) | positive scalar

Temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas.

Programmatic Use

Parameter: T_nominal_od

Nominal wet-bulb temperature — Wet-bulb temperature at nominal operating conditions
`288.15` `K` (default) | positive scalar

Wet-bulb temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid Moist air.

Programmatic Use

Parameter: Tw_nominal_od

Nominal dry-bulb temperature — Dry-bulb temperature at nominal operating conditions
`293.15` `K` (default) | positive scalar

Dry-bulb temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid Moist air.

Programmatic Use

Parameter: Td_nominal_od

Fraction of nominal mass flow rate for laminar flow transition — Ratio of threshold to nominal mass flow rates
`1e-3` (default) | positive scalar

Ratio of the threshold mass flow rate to the nominal mass flow rate of the fluid.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: laminar_fraction_od

Cross-sectional area at ports Ao and Bo — Flow area at ports Ao and Bo
`0.01` `m^2` (default) | positive scalar

Flow area at the heat exchanger fluid ports Ao and Bo.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: area_od

Fluid volume — Volume of fluid in heat exchanger
`0.01` `m^3` (default) | positive scalar

Total volume of fluid in the heat exchanger.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: volume_od

Relative humidity at saturation — Relative humidity point of condensation
`1` (default) | nonnegative scalar

Relative humidity point of condensation. Condensation occurs above this value. In most cases, this value is 1. A value greater than 1 indicates a supersaturated vapor.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: RH_ws_od

Water vapor condensation time constant — Time scale for condensation
`1e-3 s` (default) | positive scalar

Characteristic time scale at which an oversaturated moist air volume returns to saturation by condensing out excess humidity.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: time_constant_cond_od

Water droplets evaporation time constant — Time scale for evaporation
`1e-3 s` (default) | positive scalar

Characteristic time scale at which water droplets evaporate to vapor.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: time_constant_evap_od

Fraction of condensate entrained as water droplets — Fraction of condensate in water droplets
`1` (default) | scalar in the range [0,1]

Fraction of the condensate in the moist air that is entrained as water droplets.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: fraction_entrained_od

Enable dynamic compressibility — Whether to model fluid compressibility
`on` (default) | `off`

Whether to model the dynamic compressibility of the liquid. Dynamic compressibility affects the transient response of the system at small timescales. If you select this parameter, the pressure responds dynamically based on the accumulation of fluid mass in the volume. If you clear this parameter, the volume does not accumulate mass and the pressure response is instantaneous. Clearing this setting can improve simulation performance, but may have a negative effect on the simulation robustness. Only clear this setting for small fluid volumes or models with long simulation times.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas or Thermal liquid.

Programmatic Use

Parameter:	`dynamic_compressibility_od`
Values:	`"true"` \| `"false"`

Initial pressure — Fluid pressure at start of simulation
`0.101325` `MPa` (default) | positive scalar

Heat exchanger fluid pressure at the start of the simulation.

Dependencies

To enable this parameter, set either:

Outdoor heat exchanger fluid to Moist air.
Outdoor heat exchanger fluid to Gas or Thermal liquid and select Enable dynamic compressibility.

Programmatic Use

Parameter: p_init_od

Initial pressure priority — Pressure parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial pressure parameter when initializing the block.

Set this parameter to High to define your initial conditions. You may need to set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set either:

Outdoor heat exchanger fluid to Moist air.
Outdoor heat exchanger fluid to Gas or Thermal liquid and select Enable dynamic compressibility.

Programmatic Use

Parameter:	`p_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial temperature — Temperature at start of simulation
`293.15` `K` (default) | positive scalar

Temperature in the heat exchanger at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: T_init_od

Initial temperature priority — Temperature parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial temperature parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter:	`T_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial humidity specification — Method to use to describe initial humidity level
`Relative humidity` (default) | `Specific humidity` | `Mole fraction` | `Humidity ratio` | `Wet-bulb temperature`

Method to use to describe the initial humidity level in the heat exchanger fluid.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`humidity_spec_od`
Values:	`"foundation.enum.HumiditySpec.RelativeHumidity"` \| `"foundation.enum.HumiditySpec.SpecificHumidity"` \| `"foundation.enum.HumiditySpec.MoleFraction"` \| `"foundation.enum.HumiditySpec.HumidityRatio"` \| `"foundation.enum.HumiditySpec.WetBulbTemperature"`

Initial relative humidity — Relative humidity at start of simulation
`0.5` (default) | scalar in the range [0,1]

Heat exchanger fluid relative humidity at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Relative humidity.

Programmatic Use

Parameter: RH_init_od

Initial relative humidity priority — Relative humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial relative humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Relative humidity.

Programmatic Use

Parameter:	`RH_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial specific humidity — Specific humidity at start of simulation
`0.01` (default) | scalar in the range [0,1]

Heat exchanger fluid specific humidity, defined as the mass fraction of water vapor in a moist air mixture, at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Specific humidity.

Programmatic Use

Parameter: x_w_init_od

Initial specific humidity priority — Specific humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial specific humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Specific humidity.

Programmatic Use

Parameter:	`x_w_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial water vapor mole fraction — Mole fraction of water vapor at start of simulation
`0.01` (default) | scalar in the range [0,1]

Mole fraction of the water vapor in the heat exchanger fluid at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Mole fraction.

Programmatic Use

Parameter: y_w_init_od

Initial water vapor mole fraction priority — Water vapor mole fraction humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial water vapor mole fraction parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Mole fraction.

Programmatic Use

Parameter:	`y_w_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial humidity ratio — Humidity ratio at start of simulation
`0.01` (default) | scalar in the range [0,1]

Heat exchanger fluid humidity ratio, defined as the mass ratio of water vapor to dry air and trace gas, at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Humidity ratio.

Programmatic Use

Parameter: HR_init_od

Initial humidity ratio priority — Humidity ratio parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial humidity ratio humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Humidity ratio.

Programmatic Use

Parameter:	`HR_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial wet-bulb temperature — Wet-bulb temperature at the start of simulation
`287 K` (default) | positive scalar in the range [0,1]

Heat exchanger wet-bulb temperature at the start of the simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Wet-bulb temperature.

Programmatic Use

Parameter: Tw_init_od

Initial wet-bulb temperature priority — Wet-bulb temperature parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial wet-bulb temperature parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial humidity specification to Wet-bulb temperature.

Programmatic Use

Parameter:	`Tw_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial trace gas specification — Method to describe initial trace gas level
`Mass fraction` (default) | `Mole fraction`

Method to use to describe the trace gas level at the start of simulation.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`trace_gas_spec_od`
Values:	`"foundation.enum.trace_gas_spec.mass_fraction"` \| `"foundation.enum.trace_gas_spec.mole_fraction"`

Initial trace gas mass fraction — Mass fraction of trace gas at start of simulation
`0.001` (default) | scalar in the range [0,1]

Mass fraction of trace gas in a moist air mixture at the start of simulation.

The block ignores this parameter if the Trace gas model parameter in the Moist Air Properties (MA) block is None.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial trace gas specification to Mass fraction.

Programmatic Use

Parameter: x_g_init_od

Initial trace gas mass fraction priority — Trace gas mass fraction parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial trace gas mass fraction priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial trace gas specification to Mass fraction.

Programmatic Use

Parameter:	`x_g_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial trace gas mole fraction — Mole fraction of trace gas at start of simulation
`0.001` (default) | scalar in the range [0,1]

Mole fraction of the trace gas in a moist air mixture at the start of simulation.

The block ignores this parameter if the Trace gas model parameter in the Moist Air Properties (MA) block is None.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial trace gas specification to Mole fraction.

Programmatic Use

Parameter: y_g_init_od

Initial trace gas mole fraction priority — Trace gas mole fraction parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial trace gas mole fraction priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air and Initial trace gas specification to Mole fraction.

Programmatic Use

Parameter:	`y_g_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial mass ratio of water droplets to moist air — Ratio of water droplets to moist air
`0` (default) | positive scalar

Initial mass ratio of water droplets to moist air.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: r_d_init_od

Initial mass ratio of water droplets to moist air priority — Mass ratio of water droplets to moist air parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial mass ratio of water droplets to moist air priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`r_d_init_priority_od`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Indoor Heat Exchanger

Indoor heat exchanger fluid — Indoor side heat exchanger fluid
`Thermal liquid` (default) | `Gas` | `Moist air` | `Physical signal`

Fluid to model in the indoor side of the heat exchanger.

Programmatic Use

Parameter:	`fluid_id`
Values:	`"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.TL"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.G"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.MA"` \| `"fluids.two_phase_fluid.thermodynamic_cycles.enum.EN14511HeatPumpFluidDomain.PS"`

Nominal pressure drop — Pressure drop between heat exchanger ports
`0.001` `MPa` (default) | positive scalar

Pressure drop from port Ai to port Bi during nominal operating conditions.

Dependencies

To enable this parameter, set Outdoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: delta_p_nominal_id

Nominal mass flow rate — Mass flow rate between heat exchanger ports
`0.1` `kg/s` (default) | positive scalar

Mass flow rate from port Ai to port Bi during nominal operating conditions.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: mdot_nominal_id

Nominal temperature — Temperature at nominal operating conditions
`293.15` `K` (default) | positive scalar

Temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas.

Programmatic Use

Parameter: T_nominal_id

Nominal wet-bulb temperature — Wet-bulb temperature at nominal operating conditions
`288.15` `K` (default) | positive scalar

Wet-bulb temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid Moist air.

Programmatic Use

Parameter: Tw_nominal_id

Nominal dry-bulb temperature — Dry-bulb temperature at nominal operating conditions
`293.15` `K` (default) | positive scalar

Dry-bulb temperature in the heat exchanger fluid volume at nominal operating conditions.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid Moist air.

Programmatic Use

Parameter: Td_nominal_id

Fraction of nominal mass flow rate for laminar flow transition — Ratio of threshold to nominal mass flow rates
`1e-3` (default) | positive scalar

Ratio of the threshold mass flow rate to the nominal mass flow rate of the fluid.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: laminar_fraction_id

Cross-sectional area at ports Ai and Bi — Flow area at ports Ai and Bi
`0.01` `m^2` (default) | positive scalar

Flow area at the heat exchanger fluid ports Ai and Bi.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: area_id

Fluid volume — Volume of fluid in heat exchanger
`0.01` `m^3` (default) | positive scalar

Total volume of fluid in the heat exchanger.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: volume_id

Relative humidity at saturation — Relative humidity point of condensation
`1` (default) | nonnegative scalar

Relative humidity point of condensation. Condensation occurs above this value. In most cases, this value is 1. A value greater than 1 indicates a supersaturated vapor.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: RH_ws_id

Water vapor condensation time constant — Time scale for condensation
`1e-3 s` (default) | positive scalar

Characteristic time scale at which an oversaturated moist air volume returns to saturation by condensing out excess humidity.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: time_constant_cond_id

Water droplets evaporation time constant — Time scale for evaporation
`1e-3 s` (default) | positive scalar

Characteristic time scale at which water droplets evaporate to vapor.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: time_constant_evap_id

Fraction of condensate entrained as water droplets — Fraction of condensate in water droplets
`1` (default) | scalar in the range [0,1]

Fraction of the condensate in the moist air that is entrained as water droplets.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: fraction_entrained_id

Enable dynamic compressibility — Whether to model fluid compressibility
`on` (default) | `off`

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas or Thermal liquid.

Programmatic Use

Parameter:	`dynamic_compressibility_id`
Values:	`"true"` \| `"false"`

Initial pressure — Fluid pressure at start of simulation
`0.101325` `MPa` (default) | positive scalar

Heat exchanger fluid pressure at the start of the simulation.

Dependencies

To enable this parameter, set either:

Indoor heat exchanger fluid to Moist air.
Indoor heat exchanger fluid to Gas or Thermal liquid and select Enable dynamic compressibility.

Programmatic Use

Parameter: p_init_id

Initial pressure priority — Pressure parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial pressure parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set either:

Indoor heat exchanger fluid to Moist air.
Indoor heat exchanger fluid to Gas or Thermal liquid and select Enable dynamic compressibility.

Programmatic Use

Parameter:	`p_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial temperature — Temperature at start of simulation
`293.15` `K` (default) | positive scalar

Temperature in the heat exchanger at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter: T_init_id

Initial temperature priority — Temperature parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial temperature parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Gas, Thermal liquid, or Moist air.

Programmatic Use

Parameter:	`T_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial humidity specification — Method to use to describe initial humidity level
`Relative humidity` (default) | `Specific humidity` | `Mole fraction` | `Humidity ratio` | `Wet-bulb temperature`

Method to use to describe the initial humidity level in the heat exchanger fluid.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`humidity_spec_id`
Values:	`"foundation.enum.HumiditySpec.RelativeHumidity"` \| `"foundation.enum.HumiditySpec.SpecificHumidity"` \| `"foundation.enum.HumiditySpec.MoleFraction"` \| `"foundation.enum.HumiditySpec.HumidityRatio"` \| `"foundation.enum.HumiditySpec.WetBulbTemperature"`

Initial relative humidity — Relative humidity at start of simulation
`0.5` (default) | scalar in the range [0,1]

Heat exchanger fluid relative humidity at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Relative humidity.

Programmatic Use

Parameter: RH_init_id

Initial relative humidity priority — Relative humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial relative humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Relative humidity.

Programmatic Use

Parameter:	`RH_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial specific humidity — Specific humidity at start of simulation
`0.01` (default) | scalar in the range [0,1]

Heat exchanger fluid specific humidity, defined as the mass fraction of water vapor in a moist air mixture, at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Specific humidity.

Programmatic Use

Parameter: x_w_init_id

Initial specific humidity priority — Specific humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial specific humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Specific humidity.

Programmatic Use

Parameter:	`x_w_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial water vapor mole fraction — Mole fraction of water vapor at start of simulation
`0.01` (default) | scalar in the range [0,1]

Mole fraction of the water vapor in the heat exchanger fluid at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Mole fraction.

Programmatic Use

Parameter: y_w_init_id

Initial water vapor mole fraction priority — Water vapor mole fraction humidity parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial water vapor mole fraction parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Mole fraction.

Programmatic Use

Parameter:	`y_w_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial humidity ratio — Humidity ratio at start of simulation
`0.01` (default) | scalar in the range [0,1]

Heat exchanger fluid humidity ratio, defined as the mass ratio of water vapor to dry air and trace gas, at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Humidity ratio.

Programmatic Use

Parameter: HR_init_id

Initial humidity ratio priority — Humidity ratio parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial humidity ratio humidity parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Humidity ratio.

Programmatic Use

Parameter:	`HR_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial wet-bulb temperature — Wet-bulb temperature at the start of simulation
`287 K` (default) | positive scalar in the range [0,1]

Heat exchanger wet-bulb temperature at the start of the simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Wet-bulb temperature.

Programmatic Use

Parameter: Tw_init_id

Initial wet-bulb temperature priority — Wet-bulb temperature parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial wet-bulb temperature parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial humidity specification to Wet-bulb temperature.

Programmatic Use

Parameter:	`Tw_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial trace gas specification — Method to describe initial trace gas level
`Mass fraction` (default) | `Mole fraction`

Method to use to describe the trace gas level at the start of simulation.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`trace_gas_spec_id`
Values:	`"foundation.enum.trace_gas_spec.mass_fraction"` \| `"foundation.enum.trace_gas_spec.mole_fraction"`

Initial trace gas mass fraction — Mass fraction of trace gas at start of simulation
`0.001` (default) | scalar in the range [0,1]

Mass fraction of trace gas in a moist air mixture at the start of simulation.

The block ignores this parameter if the Trace gas model parameter in the Moist Air Properties (MA) block is None.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial trace gas specification to Mass fraction.

Programmatic Use

Parameter: x_g_init_id

Initial trace gas mass fraction priority — Trace gas mass fraction parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial trace gas mass fraction priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial trace gas specification to Mass fraction.

Programmatic Use

Parameter:	`x_g_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial trace gas mole fraction — Mole fraction of trace gas at start of simulation
`0.001` (default) | scalar in the range [0,1]

Mole fraction of the trace gas in a moist air mixture at the start of simulation.

The block ignores this parameter if the Trace gas model parameter in the Moist Air Properties (MA) block is None.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial trace gas specification to Mole fraction.

Programmatic Use

Parameter: y_g_init_id

Initial trace gas mole fraction priority — Trace gas mole fraction parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial trace gas mole fraction priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air and Initial trace gas specification to Mole fraction.

Programmatic Use

Parameter:	`y_g_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

Initial mass ratio of water droplets to moist air — Ratio of water droplets to moist air
`0` (default) | positive scalar

Initial mass ratio of water droplets to moist air.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter: r_d_init_id

Initial mass ratio of water droplets to moist air priority — Mass ratio of water droplets to moist air parameter priority
`High` (default) | `Low` | `None`

Priority that the solver assigns to the Initial mass ratio of water droplets to moist air priority parameter when initializing the block.

Set this parameter to High to define your initial conditions. Set this parameter to Low or None if this initial condition conflicts with the initial conditions of another block.

Dependencies

To enable this parameter, set Indoor heat exchanger fluid to Moist air.

Programmatic Use

Parameter:	`r_d_init_priority_id`
Values:	`"foundation.enum.Priority.High"` \| `"foundation.enum.Priority.Low"` \| `"foundation.enum.Priority.None"`

References

[1] European Committee for Standardization. EN 14511‑1-4:2022 — Air Conditioners, Liquid Chilling Packages and Heat Pumps for Space Heating and Cooling and Process Chillers, with Electrically Driven Compressors. Part 1 - Part 4. Brussels: European Committee for Standardization, 2022.

EN14511 Heat Pump (2P)

Description

Heating and Cooling Parameterizations

Pressure Loss

Examples

Convert a Heat Pump Model to Use the EN14511 Heat Pump (2P) Block

Building Water Management

Ports

Input

S — Compressor capacity, unitless physical signal

Programmatic Use

M — Heat pump mode, unitless physical signal

Dependencies

Programmatic Use

Ti — Indoor fluid temperature, K physical signal

Dependencies

Programmatic Use

To — Outdoor fluid temperature, K physical signal

Dependencies

Programmatic Use

Conserving

Ao — Outdoor heat exchanger inlet gas | moist air | thermal liquid

Programmatic Use

Bo — Outdoor heat exchanger outlet gas | moist air | thermal liquid

Programmatic Use

Ai — Indoor heat exchanger inlet gas | moist air | thermal liquid

Programmatic Use

Bi — Indoor heat exchanger outlet gas | moist air | thermal liquid

Programmatic Use

Output

Q — Heating or cooling capacity, kW physical signal

Programmatic Use

E — COP or EER, unitless physical signal

Programmatic Use

Parameters

Parameters

Mode — Heat pump mode Heating (default) | Cooling | Heating and Cooling

Programmatic Use

Heating Mode

Heating mode parameterization — Parameterization option for heating mode Nominal (default) | Linear fitting - capacity and efficiency | Tabulated data - capacity and efficiency

Dependencies

Programmatic Use

Nominal heating capacity — Nominal heating capacity 5 kW (default) | positive scalar

Dependencies

Programmatic Use

Nominal heating power input — Nominal heating power input 3 kW (default) | positive scalar

Dependencies

Programmatic Use

Nominal outdoor fluid temperature — Nominal outdoor fluid temperature 7 degC (default) | positive scalar

Dependencies

Programmatic Use

Nominal indoor fluid temperature — Nominal indoor fluid temperature 35 degC (default) | positive scalar

Dependencies

Programmatic Use

Maximum COP — Maximum coefficient of performance 10 (default) | positive scalar

Dependencies

Programmatic Use

Outdoor fluid temperature vector — Outdoor fluid temperature data for linear fit [-15, 12, -7, 12, 2, 7, -7] degC (default) | vector

Dependencies

Programmatic Use

Indoor fluid temperature vector — Indoor fluid temperature data for linear fit [35, 55, 35, 35, 45, 55, 55] degC (default) | vector

Dependencies

Programmatic Use

Compressor capacity vector — Compressor capacity data [.7, .7, 1, 1, .7, 1, 1] (default) | vector

Dependencies

Programmatic Use

Heating capacity vector — Heating capacity data for linear fit [3.16, 6.72, 6.74, 7.97, 5.65, 8.71, 5.38] kW (default) | vector

Dependencies

Programmatic Use

Heating power input vector — Heating power input data for linear fit [1.41, 2.24, 2.12, 1.44, 1.81, 3.4, 3.12] kW (default) | vector

Dependencies

Programmatic Use

Outdoor fluid temperature vector, Tod — Outdoor fluid temperature for table lookup [-7, 2, 7] degC (default) | vector

Dependencies

Programmatic Use

Indoor fluid temperature vector, Tid — Indoor fluid temperature for table lookup [35, 45, 55] degC (default) | vector

Dependencies

Programmatic Use

Scale heating capacity linearly with compressor capacity — Option to supply compressor capacity data on (default) | off

Dependencies

S — Compressor capacity, unitless
physical signal

M — Heat pump mode, unitless
physical signal

Ti — Indoor fluid temperature, K
physical signal

To — Outdoor fluid temperature, K
physical signal

Ao — Outdoor heat exchanger inlet
gas | moist air | thermal liquid

Bo — Outdoor heat exchanger outlet
gas | moist air | thermal liquid

Ai — Indoor heat exchanger inlet
gas | moist air | thermal liquid

Bi — Indoor heat exchanger outlet
gas | moist air | thermal liquid

Q — Heating or cooling capacity, kW
physical signal

E — COP or EER, unitless
physical signal

Mode — Heat pump mode
`Heating` (default) | `Cooling` | `Heating and Cooling`

Heating mode parameterization — Parameterization option for heating mode
`Nominal` (default) | `Linear fitting - capacity and efficiency` | `Tabulated data - capacity and efficiency`

Nominal heating capacity — Nominal heating capacity
`5` `kW` (default) | positive scalar

Nominal heating power input — Nominal heating power input
`3` `kW` (default) | positive scalar

Nominal outdoor fluid temperature — Nominal outdoor fluid temperature
`7` `degC` (default) | positive scalar

Nominal indoor fluid temperature — Nominal indoor fluid temperature
`35` `degC` (default) | positive scalar

Maximum COP — Maximum coefficient of performance
`10` (default) | positive scalar

Outdoor fluid temperature vector — Outdoor fluid temperature data for linear fit
`[-15, 12, -7, 12, 2, 7, -7]` `degC` (default) | vector

Indoor fluid temperature vector — Indoor fluid temperature data for linear fit
`[35, 55, 35, 35, 45, 55, 55]` `degC` (default) | vector

Compressor capacity vector — Compressor capacity data
`[.7, .7, 1, 1, .7, 1, 1]` (default) | vector

Heating capacity vector — Heating capacity data for linear fit
`[3.16, 6.72, 6.74, 7.97, 5.65, 8.71, 5.38]` `kW` (default) | vector

Heating power input vector — Heating power input data for linear fit
`[1.41, 2.24, 2.12, 1.44, 1.81, 3.4, 3.12]` `kW` (default) | vector

Outdoor fluid temperature vector, Tod — Outdoor fluid temperature for table lookup
`[-7, 2, 7]` `degC` (default) | vector

Indoor fluid temperature vector, Tid — Indoor fluid temperature for table lookup
`[35, 45, 55]` `degC` (default) | vector

Scale heating capacity linearly with compressor capacity — Option to supply compressor capacity data
`on` (default) | `off`

Compressor capacity vector, s — Compressor capacity data for table lookup
`[0, .7, 1]` (default) | vector

Heating capacity 2D table, q(Tod, Tid) — Heating capacity data for 2-D table lookup
`[4.41, 3.94, 3.47; 5.96, 5.65, 4.96; 7.17, 6.65, 5.82]` `kW` (default) | 2-D matrix

Heating power input 2D table, w(Tod, Tid) — Heating power data for 2-D table lookup
`[1.42, 1.7, 2.04; 1.46, 1.81, 2.18; 1.46, 1.83, 2.24]` `kW` (default) | 2-D matrix

Heating capacity 3D table, q(Tod, Tid, s) — Heating capacity data for 3-D table lookup
`cat(3, zeros(3, 3), [4.41, 3.94, 3.47; 5.96, 5.65, 4.96; 7.17, 6.65, 5.82], [6.74, 5.99, 5.38; 8.53, 7.74, 6.82; 10.13, 9.59, 8.71])` `kW` (default) | 3-D matrix

Heating power input 3D table, w(Tod, Tid, s) — Heating power data for 3-D table lookup
`cat(3, zeros(3, 3), [1.42, 1.7, 2.04; 1.46, 1.81, 2.18; 1.46, 1.83, 2.24], [2.12, 2.55, 3.12; 2.2, 2.57, 3.09; 2.22, 2.76, 3.4])` `kW` (default) | 3-D matrix

Cooling mode parameterization — Parameterization option for cooling mode
`Nominal` (default) | `Linear fitting - capacity and efficiency` | `Tabulated data - capacity and efficiency`

Nominal cooling capacity — Nominal cooling capacity
`5` `kW` (default) | positive scalar

Nominal cooling power input — Nominal cooling power input
`3` `kW` (default) | positive scalar

Nominal outdoor fluid temperature — Nominal outdoor fluid temperature
`35` `degC` (default) | positive scalar

Nominal indoor fluid temperature — Nominal indoor fluid temperature
`18` `degC` (default) | positive scalar

Maximum EER — Maximum energy efficiency ratio
`10` (default) | positive scalar

Outdoor fluid temperature vector — Outdoor fluid temperature data for linear fit
`[27, 27, 35, 35, 27, 27, 35, 35]` `degC` (default) | vector

Indoor fluid temperature vector — Indoor fluid temperature data for linear fit
`[7, 18, 7, 18, 7, 18, 7, 18]` `degC` (default) | vector

Compressor capacity vector — Compressor capacity data
`[.7, .7, .7, .7, 1, 1, 1, 1]` (default) | vector

Cooling capacity vector — Cooling capacity data for linear fit
`[4.9, 7.21, 4.59, 6.89, 7.01, 10.3, 6.56, 9.84]` `kW` (default) | vector

Cooling power input vector — Cooling power input data for linear fit
`[1.54, 1.68, 1.71, 1.76, 2.2, 2.4, 2.44, 2.51]` `kW` (default) | vector

Outdoor fluid temperature vector, Tod — Outdoor fluid temperature for table lookup
`[27, 35]` `degC` (default) | vector

Indoor fluid temperature vector, Tid — Indoor fluid temperature for table lookup
`[7, 18]` `degC` (default) | vector

Scale cooling capacity linearly with compressor capacity — Option to supply compressor capacity data
`on` (default) | `off`

Compressor capacity vector, s — Compressor capacity data for table lookup
`[0, .7, 1]` (default) | vector

Cooling capacity 2D table, q(Tod, Tid) — Cooling capacity data for 2-D table lookup
`[7.01, 10.3; 6.56, 9.84]` `kW` (default) | 2-D matrix

Cooling power input 2D table, w(Tod, Tid) — Cooling power data for 2-D table lookup
`[2.2, 2.4; 2.44, 2.51]` `kW` (default) | 2-D matrix

Cooling capacity 3D table, q(Tod, Tid, s) — Cooling capacity data for 3-D table lookup
`cat(3, zeros(2, 2), [4.9, 7.21; 4.59, 6.89], [7.01, 10.3; 6.56, 9.84])` `kW` (default) | 3-D matrix