Cooling system whit Ammonia not run

Question

Francesco Pietrangelo 2023-6-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1984109-cooling-system-whit-ammonia-not-run

回答： Yifeng Tang 2023-6-30

Hi, in this cooling system I am using R-717 ammonia to refrigerate a block (system-wide refrigeration cycle). The problem is that I cannot square the temperature ratings and pressures for R-717. The ammonia evaporates to -33°C but the system is pressurized, but it keeps giving me an error: Error:

Error compiling Simscape network for model trial_biphasic_13_06d.

Caused by:

['trial_biphasic_13_06d/System-Level Refrigeration Cycle (2P)']: The values in the table grid vector are not strictly monotonic

I do not understand if it is a problem in the fluid properties or in the block parameters used.