Experimental investigation on CRDI implemented 4 stroke single cylinder DI diesel engine using Jatropha methyl ester JME with varying injection parameters

Abstract

quotABSTRACT newlineEven though biodiesel is universally accepted as a suitable alternate fuel for the newlineCI engine, there has been limited study reported on its utilization for single cylinder newlineCRDI (Common Rail Direct Injection) engine. Use of neat biodiesel in a CRDI engine newlineeliminates consumption of diesel. In the present study, performance and combustion newlinetests were carried out with the CRDI engine using neat Jatropha Methyl Ester (JME) newlinewithout changing the engine configuration. This study was conducted on a CRDI newlineconverted with cup shaped cavity in the piston crown adopted. Single cylinder engine newlinewith CRDI system is used with neat JME as an alternate fuel with different injection newlinedurations and different starts of injection to optimize the appropriate injection newlineparameters mentioned above. This optimization is to elicit better combustion with newlinebetter fuel economy, smoother engine running with lesser engine cylinder vibration newlineand reduced emissions. As per the engine specifications, the start of injection is newline23and#8304; Before Top Dead Center (BTDC) and two other timings have been tested one newlinedegree before and after the specified start of injection. Same is the case with different newlineinjection durations as selected by the electronic CRDI system in a fuzzy logy newlineestimation to lift the load synchronizing with the Injection Pressure (IP) and fuel newlineInjection Duration (ID).quot newline newline