Article: PSV flashing (vapor + liquid)

[Crob]

You can view the page at

[link Point to another website Only the registered members can access]

[carlo.stenali]

you can esaily compare the values predicted by HNE models with those of HEM model (for gas, gas+liquid, liquid streams),
according many authors HEM is conservative while HNE models give more accurate results,
a problem being that different manufacturers may offer different solutions and it is not easy to compare,
Prode Properties includes these models

-HEM Homogeneous Equilibrium (Solution of Mass Flux integral)
-HNE Homogeneous Non-equilibrium (HEM with Boling Delay and Gas-Liquid Slip Contributes)
-HNE-DS , Homogeneous Non-equilibrium
-NHNE Non-homogeneous Non-equilibrium

with the software there is an Excel page -which allows to compare the values calculated with HEM and HNE models,
for additional information

'http://www.prode.com/docs/pppman.pdf'