Refrigeration Cycle in Simscape

版本 1.2.0.0 (1.5 MB) 作者: Leo Ng
Refrigeration cycle model in a custom Simscape two-phase flow domain.
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更新时间 2014/8/6

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This file contains a refrigeration model built using a custom Simscape two-phase flow domain. The model contains a compressor, a condenser, an expansion valve, and an evaporator. The R-134a refrigerant leaves the compressor as a hot gas. It condenses in the condenser via heat transfer with the environment. The pressure drops as the refrigerant passes through the expansion valve. The drop in pressure causes the refrigerant to vaporize in the evaporator as it absorbs heat from the refrigerator compartment. The cold gas then returns to the compressor to repeat the cycle. The controller turns the compressor on and off to maintain the refrigerator compartment temperature around the desired temperature.
The fluid properties of the R-134a refrigerant spanning the liquid phase to the vapor phase are described by look-up tables as a function of pressure and specific internal energy. Homogeneous equilibrium is assumed in the phase transition regime. The values are obtained from the NIST Chemistry WebBook "Thermophysical Properties of Fluid Systems":
https://webbook.nist.gov/chemistry/fluid/
Please read the README.txt file to get started.
To find other physical modeling examples, search for posts with the keyword "physical modeling"
https://www.mathworks.com/matlabcentral/fileexchange/?term=%22physical+modeling%22
To learn more about MathWorks Physical Modeling Products, go to:
https://www.mathworks.com/solutions/physical-modeling.html

引用格式

Leo Ng (2024). Refrigeration Cycle in Simscape (https://www.mathworks.com/matlabcentral/fileexchange/46448-refrigeration-cycle-in-simscape), MATLAB Central File Exchange. 检索来源 .

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版本 已发布 发行说明
1.2.0.0

Updated domain definition and equations.
1.1.0.0

Changed submission name.
1.0.0.0