Sizing PSV for fire case without latent heat

[jlmiller]

My question is simple but the answer probably is not. Can a PSV be sized for the fire case when the latent heat is not known for the liquid?

Thank you for any response.

 

[sheiko]

To size the safety relief valve you must know the relieving flow rate which calculation requires the latent heat of vaporization of the mixture (or pure component).

Check out the following links to know how to determine this important property with simulators:

http://webwormcpt.blogspot.com/2008/06/determine-latent-heat-and-maximum.html

http://webwormcpt.blogspot.com/2008/11/mass-heat-of-vaporization-in-hysys-only.html

"We don't believe things because they are true, things are true because we believe them."

 

[jlmiller]

Thank you for your response. This confirms what I thought would be the case.