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Modelling and Simulation of Heat Exchanger with Strong Dependence of Oil Viscosity on Temperature

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dc.contributor.author Kurmanova, Dinara
dc.contributor.author Jaichibekov, Nurbolat
dc.contributor.author Karpenko, Anton
dc.contributor.author Volkov, Konstantin
dc.date.accessioned 2024-09-17T05:49:16Z
dc.date.available 2024-09-17T05:49:16Z
dc.date.issued 2023
dc.identifier.citation Kurmanova, D.; Jaichibekov, N.; Karpenko, A.; Volkov, K. Modelling and Simulation of Heat Exchanger with Strong Dependence of Oil Viscosity on Temperature. Fluids 2023, 8, 95. https://doi.org/ 10.3390/fluids8030095 ru
dc.identifier.issn 2311-5521
dc.identifier.other doi.org/10.3390/fluids8030095
dc.identifier.uri http://rep.enu.kz/handle/enu/16439
dc.description.abstract The heating of oil and oil products is widely used to reduce energy losses during transportation. An approach is developed to determine the effective length of the heat exchanger and the temperature of the cold coolant (oil) at its outlet in the case of a strong dependence of oil viscosity on temperature. Oil from the Uzen field (Kazakhstan) is considered as a heated coolant, and water is considered as a heating component. The method of the log–mean temperature difference, modified for the case of variable viscosity, and the methods of computational fluid dynamics (CFD) are used for calculations. The results of the numerical calculations are compared with the data obtained on the basis of a theoretical approach at a constant viscosity. When using a theoretical approach with a constant or variable viscosity, the heat transfer coefficients to cold and hot coolants are found using criterion dependencies. The Reynolds-averaged Navier–Stokes (RANS) and a turbulence model that takes into account the laminar–turbulent transition are applied. In the case of variable oil viscosity, a transition from the laminar flow regime to the turbulent one is manifested, which has a significant effect on the effective length of the heat exchanger. The obtained results of the CFD calculations are of interest for the design of heat exchangers of a new type, for example, helicoid ones ru
dc.language.iso en ru
dc.publisher Fluids ru
dc.relation.ispartofseries Volume 8;Issue 3
dc.subject energy ru
dc.subject heat transfer ru
dc.subject viscosity ru
dc.subject fluid dynamic ru
dc.subject oil ru
dc.subject numerical simulation ru
dc.subject laminar– turbulent transition ru
dc.title Modelling and Simulation of Heat Exchanger with Strong Dependence of Oil Viscosity on Temperature ru
dc.type Article ru


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