Q and A
Q & A
> Question Details
Why hysys process simulator don't have actual volume flow among inputs, when you have only the volume flow, although the stream is gas you must put the liquid volume flow, so i make manually calculation before i put the value to prevent errors?
Process Modelling and Simulation
Morgan Rodwell, Fluor Canada Limited, email@example.com
Because the simulator needs a flow that is not property dependent. Mass and Molar Flow do that, as does the Liquid Volume Flow (which use the standard density). You can put standard/normal gas flows into the molar flow line. The simulator uses the composition, temperature and pressure to determine the gas density, so you can't use actual volume flow as an entry, because it would change if you changed the pressure or temperature (or the mass/mole flow would need to change which violates fundamental conservation laws.
Browse our refining and petrochemical technology Q&A
Download the Bapco Technical Writing Style Guide free-of-charge. Every engineer needs a copy.
Don't wait for the mail. Download the current edition of PTQ in digital format free-of-charge right now.
Renew your registration, update your details or register to receive the print edition of PTQ
Our Media Details for 2019
Terms and Conditions
Protecting Your Data