Complex Heat Exchange in Friction Steam of Brakes

Ivan Kernytskyy, Aleksandr Volchenko, Olga Szlachetka, Orest Horbay, Vasyl Skrypnyk, Dmytro Zhuravlev, Vasyl Bolonnyi, Volodymyr Yankiv, Ruslan Humenuyk, Pavlo Polyansky, Aleksandra Leśniewska, Dariusz Walasek () and Eugeniusz Koda ()
Additional contact information
Ivan Kernytskyy: Institute of Civil Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska St., 02-787 Warsaw, Poland
Aleksandr Volchenko: Institute of Mechanical Engineering, Ivano-Frankivsk National Technical University of Oil and Gas, 15 Karpacka St., 76000 Ivano-Frankivsk, Ukraine
Olga Szlachetka: SGGW Water Centre, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska St., 02-787 Warsaw, Poland
Orest Horbay: Department of Transport Technologies, Lviv Polytechnic National University, 12 Stepana Bandery St., 79000 Lviv, Ukraine
Vasyl Skrypnyk: Institute of Mechanical Engineering, Ivano-Frankivsk National Technical University of Oil and Gas, 15 Karpacka St., 76000 Ivano-Frankivsk, Ukraine
Dmytro Zhuravlev: Institute of Mechanical Engineering, Ivano-Frankivsk National Technical University of Oil and Gas, 15 Karpacka St., 76000 Ivano-Frankivsk, Ukraine
Vasyl Bolonnyi: Drohobych Specialized College of Oil and Gas, 57 Mykhaila Hrushevs’koho St., 82100 Drohobych, Ukraine
Volodymyr Yankiv: Department of Mechanical and Energy, Lviv National Agrarian University, 1 Volodymyra Velykoho St., 30831 Dubliany, Ukraine
Ruslan Humenuyk: Department of Mechanical and Energy, Lviv National Agrarian University, 1 Volodymyra Velykoho St., 30831 Dubliany, Ukraine
Pavlo Polyansky: Department of Mechanical, Mykolayiv National Agrarian University, 17 Ukraine Krylova St., 54040 Mykolayiv, Ukraine
Aleksandra Leśniewska: Institute of Civil Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska St., 02-787 Warsaw, Poland
Dariusz Walasek: Institute of Building Engineering, Warsaw University of Technology, Aleja Armii Ludowej 16, 00-637 Warsaw, Poland
Eugeniusz Koda: Institute of Civil Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska St., 02-787 Warsaw, Poland

Energies, 2022, vol. 15, issue 19, 1-11

Abstract: In this article the structural features of friction pairs of brakes are analyzed. Heat transfer processes with new boundary conditions are described analytically with the addition of flow conditions and the appearance of a boundary thermal layer to convective heat transfer. The joint action of heat conduction and convection fields is presented. The release of heat during friction is due to the destruction of adhesive bonds in the actual contact zones, and the stress–strain state of micro-roughnesses. It should be said that due to the presence of accompanying transfer processes, complex heat transfer is much more complex compared to purely conductive, convective, and radiative heat transfer, which significantly complicates its analytical and experimental study. In this regard, the processes of complex heat transfer are currently studied little. From the point of view of non-equilibrium thermodynamics, the main task of describing the transfer process is to establish a relationship between the magnitude of the specific flux and the surface-volume temperatures that it causes in the metallic friction elements of the brakes. Additionally, as a result, an assessment of conductive and convective heat transfer in friction pairs of brake devices was made.

Keywords: brake device; friction pair; metal friction element; types of heat transfer in fields; convective; radiative and thermal conductivity (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: 2022
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