We will check if the pipe with 12, 14, and 16 NPS will adequate for this natural gas service. Ive been looking at different textbooks and heuristic chapters, but I have yet to find an equation for calculating the size of a flash separator. Selected schedule will depend on the pipe class specification defined by EPC company as agreed with the Oil and Gas company.įor now, let's assume that we use Standard (STD) schedule for the pipe. As mention above, ID could be calculated based on the pipe NPS and pipe schedule. Here, we have to specify the Inside Diameter (ID) of the piping system. Then, click on the MATERIAL STEAM → go to ATTACHMENT tab → ANALYSIS → create PIPE SIZING Analysis → choose PRESSURE DROP calculation type Solution: The natural gas steam properties could be checked using Peng-Robinson fluid package in ASPEN HYSYS.
Demister is provided in the vapor phase and. Made by faculty at Lafayette College and produced by the University of Colorado Boulder, Department of Ch.
Following is an example with below feed gas at 32 barg -30 degC feeding a vapor liquid separator. Based on the result obtained, the acrylic acid production plant was simulated successfully in Aspen Plus flow sheet and the final production rate of products is. Demonstrates a flash separator model in Aspen Plus. More detail about pipe sizing criteria, please refer to this article. Vapor Liquid separation can be simulated in HYSYS using 2-phase separator. 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 Click on 'Select TS' to view a list of available columns. During an initial setup, the components and the fluids package that will be used will be selected. Click on the 'Tools' menu option followed by the 'Utilities' option and click on the 'Add Tray' utility to setup your column size. The HYSYS Desktop appears: Figure 1-1 Before any simulation can occur, HYSYS needs to undergo an initial setup. Click on the green 'Calculation' button to turn it on. Example problem: line sizing using ASPEN HYSYS (*) Natural gas with following composition Example problem: line sizing using ASPEN HYSYS () Natural gas with following composition C1 : 95 C2 : 2.5 C3 : 0.3 N2 : 1.6 CO2 : 0.6 Mass flowrate : 95000 kg/h Operating Pressure : 900 kPag Operating Temperature : 45 o C The Oil and Gas Design criteria for vapor piping service is as follow: P / L 1. Open the HYSYS program and open the case study you want to use.