Comparative investigation on performance of various aspiration methods applied in a single cylinder diesel engine

Abstract

Better fuel economy and higher power with lower maintenance cost has increased the popularity of diesel engine vehicles. This paper investigates the effects of various aspiration methods such as natural aspiration, charge preheating, exhaust gas recirculation and supercharging (SC) on the performance of a diesel engine using neat diesel fuel in terms of brake thermal efficiency, indicated thermal efficiency, mechanical efficiency, specific fuel consumption and total fuel consumption. For this study, a naturally aspirated four-stroke single cylinder diesel engine was modified and tested with diesel fuel under various load conditions. The evaluation of the experimental data showed that SC the engine gives comparative performance than all other aspiration methods considered in this work.