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Numerical Simulation of Hydraulically Actuated Natural Gas Compressors

[+] Author Affiliations
Philip G. Hill, Shahin Hessami, Anker Gram

Westport Research, Inc., Vancouver, BC, Canada

Paper No. IMECE2003-55214, pp. 9-20; 12 pages
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Process Industries
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Process Industries Division
  • ISBN: 0-7918-3725-4 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME


A numerical simulation has been developed to assist in design of low-speed hydraulically actuated compressors delivering natural gas at overall pressure ratios of 90: 1. The model has been used to estimate the effect of heat transfer during compression, the effects of reduced inter-stage volume, and the effects of departures from ideal gas behavior during the last stage of compression. It estimates overall compression efficiency, volumetric efficiency and cylinder pressures as a function of time. The model is capable of estimating dynamic behavior in intercooler passages when inter-stage volumes are small, and has been adapted to two or three stages.

Copyright © 2003 by ASME



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