Solution: The natural gas steam properties could be checked using Peng-Robinson fluid package in ASPEN HYSYS. More detail about pipe sizing criteria, please refer to this article. Typically, an EPC company will develop their own line sizing spreadsheet that include well-known pressure drop calculation method e.g. Please note that pressure drop calculation is based on HYSYS default pressure drop calculation for pipe sizing analysis option in equipment sizing. However, to get a rough picture and learn the philosophy of line sizing calculation, HYSYS could be used. (*) ASPEN HYSYS is not a specialize software for the line sizing calculation. The Oil and Gas Design criteria for vapor piping service is as follow:Ĭalculate the minimum required piping diameter for this service. Mass flowrate : 95000 kg/h Operating Pressure : 900 kPag Operating Temperature : 45 o C Example problem: line sizing using ASPEN HYSYS (*) Natural gas with following composition
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