I have confusion in Simscape Co2 transcritical system example. How you had designed compressor i dont get it and why you used PS LOOK UP TABLE 2D IN COMPRESSOR. Do i need a specific date to run this

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ASUTOSH JOSHI 2019-1-22

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回答： Yifeng Tang 2022-9-21

I am doing simulation of CO2 transcritical system.

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Answer 1

Yifeng Tang 2022-9-21

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The 2D LUT and an ideal flow rate source is to represent the BEHAVIOR of a compressor. If the pressure ratio (outlet/inlet) rises, the flow rate drops, and if the compressor RPM increases, the flow rate increases. The 2D LUT basically describes these behaviors. If you plot flow vs pressure ratio at different RPMs, you'll get a figure of the compressor map.