Diesel-Engine Performance and Emission Using Diesel Mixed with Palm Ethyl Ester, Ethyl Acetate and Ethanol

Authors

  • Ekkachai Sutheerasak Department of Mechanical Engineering, Faculty of Engineering, Burapha University
  • Charoen Chinwanitcharoen
  • Sathaporn Chuepeng

Abstract

Nitrogen oxide and particulate matter emissions from diesel engines affect to human health and environment. Diesel fuel mixed with oxygenated additives, such as alcohols and esters, are being continuously developed to reduce both emissions. This work is to study the performance and emissions of a direct-injection diesel engine, single-cylinder and four-stroke engine, at speed 3,000 rpm and different loads, as using diesel mixed with palm ethyl ester and ethyl acetate at 5%v (PEE5Ea5) and ethanol increased to 20%v compared with diesel and diesel blended to 5% palm ethyl ester (PEE5). Results of engine performance test indicate that the use of PEE5Ea5 and ethanol as added to 20% led to the continuous reduction of engine performance with increasing ethanol. However, this work found that the use of PEE5Ea5 mixed with 5% ethanol had brake thermal efficiency increased to 1% comparing with PEE5 and similar to diesel. The increase of brake specific fuel consumption was not more than 6% as compared with diesel at 4 kW brake power. Moreover, measuring engine pollutants show that the use of PEE5Ea5 blended to ethanol as added to 20% led to the continous reduction of carbon dioxide, nitric oxide, carbon monoxide, and particulate matter, because the mixture of ethyl acetate and ethanol resulted in the complete combustion and the decrease of carbon to hydrogen ratio leading to the reduction of burning temperature but there was the addition of hydrocarbon as comparing with diesel and PEE5. Keywords :  Diesel, diesel blended to palm ethyl ester, ethanol, ethyl acetate, engine performance and emissions

Author Biography

Ekkachai Sutheerasak, Department of Mechanical Engineering, Faculty of Engineering, Burapha University

Department of Mechanical Engineering

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Published

2022-05-25