PRESSURE AND TEMPERATURE DROP IN GAS TRANSPORTING PIPELINES

Béla Illés (), Elemér Bobok, János Zsuga and Anikó Tóth
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Béla Illés: University of Miskolc
Elemér Bobok: University of Miskolc
János Zsuga: CEO PhD, Natural Gas Transporting Ltd
Anikó Tóth: University of Miskolc

Advanced Logistic systems, 2012, vol. 6, issue 1, 159-166

Abstract: It is a generally accepted practice in the natural gas industry the approximation that the temperature of the flowing gas along the length of the pipeline is constant. Experimental investigations obtain the decrease of the temperature in the direction of the flow resulted by the heat transfer between the flowing gas and the soil around the pipe. The polytropic change of thermal state seems to be a more realistic assumption than the traditional isothermal approximation. The flow equations are expanded to the polytropic expansion. The pressure distribution can be determined in this way with a higher accuracy. The key problem to determine the adequate value of the polytropic power. Our paper present a method to obtain this power based on the heat transfer calculations.

Keywords: natural gas transporting pipeline; pressure drop; temperature drop; polytropic expansion; polytropic power (search for similar items in EconPapers)
Date: 2012
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