Influence of the method of implementing the forced air flow through the cooling system on the temperature of the coolant in heavy-duty engines

Abstract

The article discusses the problem how forced air flow is implemented through the cooling module of heavy-duty engines. The kinematic connection between the coolant pump and the crankshaft of the engine, results in the fact that the pump performance often does not correspond to the engine demand at its part load. In conjunction with the fan drive method, the temperature of the coolant may be too low or too high for part load. The study was carried out in order to calculate the parameters of the cooling system in heavy-duty engines for maximum power and maximum torque, taking into account a mechanical fan drive, a hydraulic fan drive and an electric fan drive.

Optimization of the electric bus radiator design in terms of noise emissions and energy consumption by computational fluid dynamics

“…In the case of conventional vehicles equipped with internal combustion engines (ICE), designing in accordance with the principles of sustainable development currently focuses mainly on rightsizing trends [5], improving the efficiency of fuel combustion and its composition, as well as the efficiency of exhaust gas treatment systems [23,24]. An interesting approach to improving ICE efficiency is demonstrated in the work of Sroka and Sadlak [18], where the authors present study results showing that the use of an active combustion chamber (based on thermal barriers) can improve the effective efficiency of the engine from 10 to 20%.…”