METHODS OF UTILIZING EXHAUST WASTE HEAT OF INTERNAL COMBUSTION ENGINE

Abstract

Nowadays, the development of ICE is facing major challenges such as the
exhaustion of traditional fuel sources, low thermal efficiency and environmental
pollution emissions. Specifically, in the total amount of energy supplied to the engine
through the transformation from chemical energy to the latent thermal energy in the
fuel, only about 20 to 40% is successfully converted to useful work, the remaining
thermal energy were being discharged into the environment through exhaust gas
and engine cooling system. Therefore, taking advantage of this energy source is
considered a challenging and promising research direction. Compared to utilizing
heat of cooling water, the recovery and use of exhausted heat is much more efficient
and easier because it has less impact on the structure and working process of the
engine. This paper will summarize the prospects and challenges of the methods of
utilizing exhausted heat currently being studied and used today. The content of the
article can be used as a basis for research to improve the economics and techniques
through optimizing the working conditions of the engine and for calculating the
design of systems that utilize exhaust energy - engine cooling water.