Why is the Process simulation needed? (for EPC Project)
Why is Process Simulation Needed? (for EPC Project) When I joined an EPC Company… When I joined an EPC company as a process engineer, process engineers were busy doing process simulations. I saw a senior process engineer doing a process simulation by using HYSYS or Pro II for the EPC project of oil & gas / petrochemical / refineries. But Heat and Mass Balance(HMB) already existed!! The thing that I couldn't understand was that there had already been HMB given by a FEED company after being awarded the EPC project. All kinds of the process documents such as PFD, P&ID, HMB, etc., had already existed. The funny thing to me was that the senior engineers were inputting the process conditions (temperature, pressure, pressure drop, flow rate, compositions of feed streams, etc.) by referring to HMB given by FEED, they literally just copied the input data and pasted it into the HYSYS. Then they had almost the same results as the HMB. They had created their own HMB extrac...