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DanWBR avatar DanWBR commented on September 27, 2024

@CKapp-slrconsulting what thermo model are you using? can you zip the file and attach it here?

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CKapp-slrconsulting avatar CKapp-slrconsulting commented on September 27, 2024

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DanWBR avatar DanWBR commented on September 27, 2024

@CKapp-slrconsulting please attach the zipped flowsheet file, and do not reply directly from the email, please come to github website to attach the file.

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CKapp-slrconsulting avatar CKapp-slrconsulting commented on September 27, 2024

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DanWBR avatar DanWBR commented on September 27, 2024

@CKapp-slrconsulting you need to zip the simulation file

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CKapp-slrconsulting avatar CKapp-slrconsulting commented on September 27, 2024

Chiller.zip
](url)

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DanWBR avatar DanWBR commented on September 27, 2024

@CKapp-slrconsulting the attached flowsheet doesn't have a compressor named C-NGL

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andr1976 avatar andr1976 commented on September 27, 2024

@CKapp-slrconsulting the suction state is all liquid, and the energy stream is negative in the compressor. Something is wrong. However if you change the equation of state to pure Peng-Robinson the results look sane. I don't know why Lee-Kessler causes problems in the compressor calc (which effectively should be equal to a pump calc for liquid fluid).

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andr1976 avatar andr1976 commented on September 27, 2024

@DanWBR check-out the attached file. It shows the problem with discharge temperature for liquid propane for PR/LK vs PR

Chiller2.zip

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CKapp-slrconsulting avatar CKapp-slrconsulting commented on September 27, 2024

Many Thanks Dan for your detective work

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