alternative way of calling Coolprop every sampling time in simulink

Question

Seungho Rhee 2023-2-3

0
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https://ww2.mathworks.cn/matlabcentral/answers/1906060-alternative-way-of-calling-coolprop-every-sampling-time-in-simulink

回答： Rasmita 2023-2-16

Hello all,

I am using Coolprop for humid air properties in Simulink with Matlab function block. It is working well without any error, but it's too slow. I guess it is calling Coolprop from python library every sampling time, and it makes simulation slow. Here is how I use the Coolprop on my code below.

function y  = matlabfunc(input1, input2, input3)
coder.extrinsic('py.CoolProp.CoolProp.HAPropsSI');
y  = py.CoolProp.CoolProp.HAPropsSI('Vha','Hha',input1,'P',input2,'RH',input3);
end

Is there any alternative way to use Coolprop with faster speed? For example, calling Coolprop only one time before simulation starts, load it into workspace or somewhere, and use it.

Thanks!