How can one use Aspen to calculate the phase transition heat of a mixture?
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How is the phase change heat of the mixture calculated in the vapor-liquid mixing zone? Thank you to all the experts for your help!
I’ll suggest a simple method: you can connect a stream to a heater or cooler, determine the composition and pressure of that stream, and then set the gas fraction in the heater or cooler to 0 or 1
It is very convenient and simple to estimate the thermodynamic properties of mixtures using Hysis; all that is needed are the composition and conditions. LZ might want to give it a try
I agree with the view on the second floor: for mixtures, the temperature changes during phase transition, so it is not possible to simply set the inlet and outlet temperatures. Using a heater, a pressure is set; the vapour fraction of the inlet stream is set to 0, while the vapour fraction of the heater is set to 1. The duty value in the result represents the phase change heat