The evolution of pressure, temperature, and gas inventory during containment of blowdown from two high pressure gas networks into a third lower pressure relatively large redundant pipeline is followed through a simple lumped parameter model. Numerical solution of the non-linear model equations enabled to study the effects of relevant operating conditions on the system's dynamics. The effects of initial pressure difference between the supply and receiving networks, ratio of discharge orifice to pipe diameters in the supply networks, and heat transfer from the surroundings are investigated. A set of computer generated results are presented to demonstrate vividly the effect of the above variables on the percent of gas recovered in the lower pressure pipeline, the blowdown time, and the minimum temperatures reached in the networks.
Emergency venting into redundant pipelines
Journal of Loss Prevention in the Process Industries ; 25 , 4 ; 739-745
2012
7 Seiten, 9 Bilder, 1 Tabelle, 23 Quellen
Aufsatz (Zeitschrift)
Englisch
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