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Vol.26, No.1, 2026, pp. 158–163 |
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FORMATION OF A MODEL FOR IMPROVING THE EFFICIENCY OF CRYOGENIC PUMPS FOR LIQUEFIED NATURAL GAS Panteleev Alexander Sergeevich1 1) Gubkin Russian State University of Oil and Gas, Faculty of Mechanical Engineering, Moscow, RUSSIAN FEDERATION A.S. Panteleev https://orcid.org/0009-0004-4940-3844 ; T.A. Guseva https://orcid.org/0009-0001-3537-4390 ; A.L. Nikolaeva https://orcid.org/0009-0008-8239-2162 2) Immanuel Kant Baltic Federal University, The Branch Scientific Cluster Institute of High Technologies, Kaliningrad, RUSSIAN FEDERATION P.S. Shcherban https://orcid.org/0000-0001-5106-7852 , *email: ursa-maior@yandex.ru
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Abstract The increasing need for energy and the need to ensure sustainable development and ecology of the environment places forward new requirements for improving the technology and increasing the production of liquefied natural gas (LNG). It is possible to solve such problems only by simultaneous involvement of mathematical, physical and technical, and technological methods. At the same time, the development of such optimisation solutions can be carried out for specific equipment, which will allow to increase the productivity and quality of LNG production technology as a whole. One of the key elements of LNG production process chain is cryocondensation. The equipment used in this process is subjected to a wide range of physical and chemical influences, and its design and operating principle have significant impact on LNG production. An important element of system operation which requires improvement is the rapidity of operation of the cryocondensation pump. The operation speed is conditioned by a large complex of interrelated and complicated processes: mass and heat transfer, phase transformations, continuous growth of the cryo-sediment, formation and constant change of the structure and thermophysical properties of the cryo-sediment. Besides, it is necessary to pump out not a single-component gas, but a multicomponent gas medium having different thermophysical properties. Understanding the nature of forces holding gas particles on the cooled surface, as well as the mechanism of cryocondensation capture of gas molecules is one of the most difficult problems of modern physics and the subject of numerous experimental and theoretical works. Fast performance of the cryocondensation pump determines the amount of useful product output and affects its quality. In this study we set a task to carry out mathematical modelling of the cryocondensation pump performance and analyse the factors affecting the process. Taking into account the obtained model, technical solutions that improve the quality of cryocondensation pump operation are formed. Keywords: • cryocondensation pump • process modelling • liquefied natural gas • pump speed • equipment efficiency • cryopanel geometry |
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