Russian Federation
Voronezh, Russian Federation
The heat exchange in the internal combustion engine, which has a contact character, covers the processes of heat transfer between the gas mixture and the solid parts of the cylinder-piston group. In addition, heat transfer occurs in areas of direct contact of solid elements (piston — ring — cylinder, valve — seat, bearings). Proper understanding and modeling of these thermal interactions are key to ensuring the thermal balance of the engine, its efficiency, durability and emissions levels. This work is devoted to the study of the key mechanisms of contact heat exchange in internal combustion engines, as well as methods of its modeling and measurement. The paper also analyzes the effect of contact heat transfer on engine parameters and considers ways of its engineering optimization.
internal combustion engine, heat transfer, gas mixture, optimization, thermal balance
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