Combined Effect of Synthesized Waste Milk Scum Oil Methyl Ester and Ethanol Fuel Blend on the Diesel Engine Characterist
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ORIGINAL CONTRIBUTION
Combined Effect of Synthesized Waste Milk Scum Oil Methyl Ester and Ethanol Fuel Blend on the Diesel Engine Characteristics Hurmathulla Khan1 • Mohammed Kareemullah2 • H. C. Ravi3 • K. Fazlur Rehman4 R. Harish Kumar5 • Asif Afzal2 • Manzoore Elahi M. Soudagar6 • H. Fayaz7
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Received: 12 January 2020 / Accepted: 7 August 2020 Ó The Institution of Engineers (India) 2020
Abstract Milk scum is a waste obtained in milk dairies, which can be used as a raw material for producing biodiesel by a transesterification process. In this research study, the biodiesel obtained from milk scum was blended with diesel to make binary blends (B20D80, B60D40 and B100). These binary blends were further blended with ethanol in different percentages to make ternary blends (B20E05D75, B20E10D70, B20E15D65). Physical and chemical properties of binary and ternary blends were investigated and compared. Degradation of physical properties of the prepared biodiesels with respect to time was studied, which is the salient part of the work. Engine performance test was conducted in a single-cylinder diesel engine. Performance of the engine for different blends (both binary and ternary) was recorded and compared.
Addition of 5% ethanol showed a decrease in fuel consumption, whereas higher content (15%) of ethanol showed rapid increase in fuel consumption as compared to that of binary blends. Ternary blend containing 5% ethanol showed higher brake thermal efficiency (BTE) compared to D100 (diesel only), while ternary blends containing 10 and 15% ethanol gave lower BTE compared to 5% ethanol and D100. The blend B20E05D75 is considered as better alternative fuel upon comparing mass fuel consumption, air fuel ratio and brake thermal efficiency with all rest of blends tested in this study.
& H. Fayaz [email protected]
Introduction
1
Department of Mechanical Engineering, HMS Institute of Technology, Tumkur 572101, India
2
Department of Mechanical Engineering, P. A. College of Engineering (Affiliated to Visvesvaraya Technological University Belagavi), Mangaluru 574153, India
3
Department of Mechanical Engineering, D Y Patil School of Engineering Academy, Ambi, Pune, India
4
Department of Mechanical Engineering, Anjuman Institute of Technology and Management, Bhatkal, India
5
Department of Mechanical Engineering, Sri Siddhartha Institute of Technology, Tumkur 572104, India
6
Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
7
Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
Keywords Milk scum Biodiesel Brake-specific fuel consumption Brake thermal efficiency Ethanol
More than 500 present modern dairy plants produce about 30 million liters of milk daily and wide varieties of dairy products in India. Approximately 30 million to 60 million liters of dairy waste products are also obtained every single day during milk processing. It is also estimated that around 100 kg of milk scum is obtained pe
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