The ASME Boiler and Pressure Vessel Code and publications by many manufacturers caution the design engineer to consider back pressure in discharge piping when sizing and selecting pressure relief valves. Only general guidelines are given, however, because of widely varying installation requirements. This paper addresses manifolded discharge piping system design. The method of analysis provides a simple technique for determining pressure within a discharge piping system. The method is based on adiabatic flow and uses local Mach number to relate expansion of the gas in the pipes to a mass flow function. The paper illustrates that relief valves discharging into lines and headers should not be sized or selected without careful analysis of the entire relief system.
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September 1981
Research Papers
Design of Discharge Piping for Pressure Relief Systems Available to Purchase
R. H. Ross
R. H. Ross
Petro-Marine Engineering, Inc., Gretna, La. 70053
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R. H. Ross
Petro-Marine Engineering, Inc., Gretna, La. 70053
J. Energy Resour. Technol. Sep 1981, 103(3): 190-195 (6 pages)
Published Online: September 1, 1981
Article history
Received:
November 1, 1979
Revised:
June 1, 1981
Online:
October 22, 2009
Citation
Ross, R. H. (September 1, 1981). "Design of Discharge Piping for Pressure Relief Systems." ASME. J. Energy Resour. Technol. September 1981; 103(3): 190–195. https://doi.org/10.1115/1.3230835
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Related Chapters
Part 2, Section II—Materials and Specifications
Companion Guide to the ASME Boiler & Pressure Vessel Code, Volume 1, Second Edition
Part 2, Section II—Materials and Specifications
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Third Edition
Design Requirements for Specific Systems
Power Piping