CALCULATING THE HEAT OUTPUT IN THE ENVIRONMENT WITH THERMAL COOLERS OF THE COOLING SYSTEM

Abstract

According to the purpose, the work provides for the specification of the methodology for estimating heat loss with coolants through the cooling system, depending on the operating mode of the internal combustion engine for determining the main components of heat losses and their optimization. An analytical study of the estimation of losses of heat with a cooling liquid in the cooling system of an internal combustion engine is carried out. Based on the results, curves for the change in heat release in a coolant of a 5TDF type diesel engine, depending on the speed mode of operation and load, have been approximated. To develop the calculation methodology, a power balance diagram of the vehicle with a 5TDF engine is constructed. The method for determining the components of the heat balance is specified. According to the refined methodology of study of the components of the thermal balance of the engine, it was possible to determine the influence of the regulation of the fan of the cooling system on the economy of the diesel engine at various load levels. The results of the study allowed determining the ways of improving the cooling system of the engine to increase its reliability by supporting a more stable temperature state.