Addition of diethyl ether on the LHR engine characteristics using biodiesel-eucalyptus blend

Abstract

ABSTRACT The present experiment deals with the study of addition of diethyl ether on the performance and emission characteristics of LHR engine using papaya methyl ester-eucalyptus oil blends. The test blends are CPME30Eu70 (Carica papaya methyl ester 30% and Eucalyptus oil 70%), CPME30Eu70 + 10% DEE and diesel. The optimum results we get with presence of DEE in CPME30Eu70 in LHR engine. The presence of DEE creates a lean mixture, low viscosity, high cetane number and volatility improves performance for a large degree. The graph depicts that addition of 10% diethyl ether gives the best performance in BSEC, BSFC, BTE and emission wise when coupled with LHR engine. At higher load, BTE for CPME30Eu70 added with 10% in coated engine is 33% and it was 3% higher compared to CPME30Eu70 in uncoated engine. Most notably NOx emission rate is decreased by the presence of the DEE and BSFC is brought under acceptable limit. NOx emission rate while using diethyl ether decreased the emission by 90 ppm when compared to blend without diethyl ether. BSEC decreases in CPME30Eu70 + 10%DEE and betters the performance of diesel in conventional engine. It also said to improve the cold flow properties of the CPME-eucalyptus oil blend.