Faliure to calculate message

Discusses use of COCO, the process simulation and modelling software suite from AmsterCHEM, downloadable from http://www.cocosimulator.org

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Faliure to calculate message

Postby wayne13 » 22 May 2016, 00:10

I'm a new user. Tried to set up simple hydrocarbon flash or load example simulations. Get the same error message

Failed to calculate enthalpy for phase Vapor: CalcSinglePhaseProp failed: Failed to set enthalpy: Undefined or unsupported property: enthalpy
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Re: Faliure to calculate message

Postby jasper » 22 May 2016, 11:02

It sounds like the property package you are using does not support enthalpy. Which property package are you using?
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Re: Faliure to calculate message

Postby jasper » 22 May 2016, 13:47

Can you attach your document? Or specify which examples are you trying and what you are doing to get this message?
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Re: Faliure to calculate message

Postby wayne13 » 13 June 2016, 03:48

i have attached file
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trial1.fsd
here is the file
(14.96 KiB) Downloaded 760 times
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Re: Faliure to calculate message

Postby jasper » 13 June 2016, 07:06

You have set the temperature of the flash unit to -459.67 F = 0 K. Try a positive temperature?
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Re: Faliure to calculate message

Postby wayne13 » 14 June 2016, 07:23

I did and received same message that enthalpy calculation failed
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Re: Faliure to calculate message

Postby jasper » 14 June 2016, 07:53

If I set temperature to 0 C it simply solves. Send me the fsd with the changed temperature so that I can check?

Thanks.
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