Heat load of bimetallic ribbed tube
Elena Sergeevna BAIMETOVA,
Albina Firdavesovna GIZZATULLINA,
Maria Ravilevna KOROLEVA,
Olga Vladimirovna MISHCHENKOVA,
Fyodor Nikolaevich PUSHKAREV,
Alena Alekseevna CHERNOVA https://doi.org/10.15514//ISPRAS-2021-33(5)-17
Abstract
This study is devoted to the problem of numerical modeling of the conjugate heat transfer in a closed-type power installation. The working elements of that are ribbed bimetallic tubes using the openFoam toolbox. The heat transfer process modeling in bimetallic tubes is associated with solving the problem of determining the value of the contact thermal resistance at the metal / metal interface. Considered design of a bimetallic tube involves crimping copper washers on the surface of an aluminum cylindrical tube. Hence, the contact surface of the tube is not isotropic in its properties. A mathematical model of conjugate heat transfer for air / bimetal / coolant medium is proposed. The features of the organization of thermophysical processes at the metal contact interface and at the metal / air and metal / coolant medium are shown. A qualitative comparison of the obtained results with the famous experimental data is carried out. Generalized temperature profiles in the rib longitudinal section are obtained by mathematical modeling. The given distributions of temperature and heat flux make it possible to estimate the contribution of each individual rib to the investigated heat removal process from the air environment. The efficiency of the considered technology of manufacturing a bimetallic finned tube is shown.
Supporting agencies: The research was carried out with the financial support of Kalashnikov ISTU within the framework of the scientific project No. ЧАА/20-30-07
About the Authors
Elena Sergeevna BAIMETOVA
Kalashnikov Izhevsk State Technical University
Russian Federation
Russian Federation
Senior Lecturer at the Thermal Engines and Installations Department
Albina Firdavesovna GIZZATULLINA
Kalashnikov Izhevsk State Technical University
Russian Federation
Russian Federation
Postgraduate student
Maria Ravilevna KOROLEVA
Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Candidate of physical and mathematical sciences, Associate Professor, Senior Researcher
Olga Vladimirovna MISHCHENKOVA
Kalashnikov Izhevsk State Technical University
Russian Federation
Russian Federation
Candidate of Physical and Mathematical Sciences, Associate Professor
Fyodor Nikolaevich PUSHKAREV
Kalashnikov Izhevsk State Technical University
Russian Federation
Russian Federation
Postgraduate student
Alena Alekseevna CHERNOVA
Kalashnikov Izhevsk State Technical University
Russian Federation
Russian Federation
Candidate of Technical Sciences, Associate Professor, Department of Thermal Engines and Installations
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Review
For citations:
BAIMETOVA E.S., GIZZATULLINA A.F., KOROLEVA M.R., MISHCHENKOVA O.V., PUSHKAREV F.N., CHERNOVA A.A. Heat load of bimetallic ribbed tube. Proceedings of the Institute for System Programming of the RAS (Proceedings of ISP RAS). 2021;33(5):271-282. (In Russ.) https://doi.org/10.15514//ISPRAS-2021-33(5)-17
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