Simulation of high pressure pipeline gas flow though a control valve
by
Babak Afzali
Department of Aerospace Engineering, K.N.Toosi University of Technology, Tehran, Iran
Coauthors: Dr H.Karimi , H.Khaledi

Almost all fuel control systems output is a signal which is sent to a control valve installed on fuel transmission pipeline to adjust the flow rate of the fuel. So there is an important matter that how the transmission line responds to the control signal and in which way the valve actuator position presents the fuel flow rate. Here a simple high pressure natural gas feeding line with common equipments such as stop valves, fittings, contractions, bends and a control valve installed has been studied to present how the gas flow rate changes with control valve opening position. The "Smooth Velocity Head Implicit Method" (SVHIM) has been used which could consider the choked flow problems and transition to sonic flow in order to cover the critical conditions. At last, a comparison between deferent system responses due to different valve opening functions and different boundary conditions is presented.

Date received: April 21, 2008

Copyright © 2008 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caxc-61.