Why do I see a temperature increase predicted across a JT (throttling) valve?

Michael Hlavinka

October 26, 2007

There have been many questions concerning temperature rises predicted by ProMax across JT valves and other adiabatic flashes. Depending on conditions, ProMax may predict the temperature to rise in the flash. I have created a document that explains the cause of this temperature rise and mathematically proves its existence for simple systems.

Review Temperature Increases across JT Valves and Adiabatic Flashes

Authored by Michael Hlavinka (BR&E Technical Director)