An inactive gas piping system with minor leaks may require repressurizing if the system pressure cannot be allowed to fall to atmospheric pressure, for example, to maintain cleanliness. In this study, a simple hand calculation is developed to predict static (leakage only) pressure decay, and thus the repressurizing frequency, of such a gas piping system. This method can also be used to estimate the maximum leakage flowrate in the event that automatic repressurizing is required. This prediction method was tested and validated.
Gas System Leakage Pressure Decay©
Oak Park, CA
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF Pressure Vessel Technology. Manuscript received February 16, 2012; final manuscript received June 16, 2012; published online June 11, 2013. Assoc. Editor: Allen C. Smith.
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Doyle, D. F. (June 11, 2013). "Gas System Leakage Pressure Decay©." ASME. J. Pressure Vessel Technol. August 2013; 135(4): 044503. https://doi.org/10.1115/1.4007190
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