Hartmann–Sprenger Energy Separation Effect for the Quasi-Isothermal Pressure Reduction of Natural Gas: Feasibility Analysis and Numerical Simulation

Artem Belousov (), Vladimir Lushpeev, Anton Sokolov, Radel Sultanbekov, Yan Tyan, Egor Ovchinnikov, Aleksei Shvets, Vitaliy Bushuev and Shamil Islamov ()
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Artem Belousov: Predictive Analytics Department, Industrial Digital Platform, 199178 Saint Petersburg, Russia
Vladimir Lushpeev: Institute of Earth Sciences, Saint Petersburg State University, 199034 Saint Petersburg, Russia
Anton Sokolov: Scientific and Education Center Gazpromneft-Politech, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
Radel Sultanbekov: Resource Management Centre, Gazpromneft Marine Bunker, 199106 Saint Petersburg, Russia
Yan Tyan: Department of Oil and Gas Transport and Storage, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia
Egor Ovchinnikov: Department of Oil and Gas Transport and Storage, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia
Aleksei Shvets: Department of Oil and Gas Transport and Storage, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia
Vitaliy Bushuev: School of Economics and Management, National Research University Higher School of Economics, 194100 Saint Petersburg, Russia
Shamil Islamov: Department of Petroleum Engineering, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia

Energies, 2024, vol. 17, issue 9, 1-25

Abstract: The present paper provides a brief overview of the existing methods for energy separation and an analysis of the possibility of the practical application of the Hartmann–Sprenger effect to provide quasi-isothermal pressure reduction of natural gas at the facilities within a gas transmission system. The recommendations of external authors are analyzed. A variant of a quasi-isothermal pressure regulator is proposed, which assumes the mixing of flows after energy separation. Using a numerical simulation of gas dynamics, it is demonstrated that the position of the resonators can be determined on the basis of calculations of the structure of the underexpanded jet without taking into account the resonator and, accordingly, without the need for time-consuming calculations of the dynamics of the processes. Based on the results of simulating the gas dynamics of two nozzle–resonator pairs installed in a single flow housing, it is shown that, in order to optimize the regulator length, the width of the passage between the two nearest resonators should be greater than or equal to the sum of diameters of the critical sections of the nozzles. Numerical vibroacoustic analysis demonstrated that the most dangerous part of the resonator is the frequency of its natural oscillations.

Keywords: Hartmann–Sprenger effect; quasi-isothermal reduction; unheated reduction; gas distribution system; natural gas distribution networks; pressure regulator (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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