Article: A comparative study of Al2O3 coated LHR engine characteristic using rice bran and mahua methyl ester as a fuel Journal: International Journal of Vehicle Design (IJVD) 2012 Vol.59 No.2/3 pp.182 - 195 Abstract: In this study, for the first time, a nano material of Al2O3 was used as ceramic layer in low heat rejection engine concepts. The coating was carried out by plasma spray method on the combustion chamber surfaces (cylinder head, cylinder liner, valves and crown surfaces) of the DI diesel engine. A comparative evaluation of Al2O3 coated engine was carried out between two types of biodiesel (methyl ester of rice bran and mahua oil) and diesel. Experiments were conducted on single cylinder, four strokes, water cooled and direct injection diesel engine. The test run was also repeated for uncoated engine and compared. The results indicated that, an increase in engine power (6.3-11.4%) and decrease in specific fuel consumption (0.8-10.9%), as well as significant improvements in exhaust gas emissions (except NOx) and smoke opacity (19.6-28.9%) were observed in Al2O3 coated engine compared with that of the uncoated engine. Inderscience Publishers - linking academia, business and industry through research

Title: A comparative study of Al₂O₃ coated LHR engine characteristic using rice bran and mahua methyl ester as a fuel

Authors: M. Mohamed Musthafa; S.P. Sivapirakasam; M. Udayakumar

Addresses: Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli–620015, Tamil Nadu, India ' Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli–620015, Tamil Nadu, India ' Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli–620015, Tamil Nadu, India

Abstract: In this study, for the first time, a nano material of Al₂O₃ was used as ceramic layer in low heat rejection engine concepts. The coating was carried out by plasma spray method on the combustion chamber surfaces (cylinder head, cylinder liner, valves and crown surfaces) of the DI diesel engine. A comparative evaluation of Al₂O₃ coated engine was carried out between two types of biodiesel (methyl ester of rice bran and mahua oil) and diesel. Experiments were conducted on single cylinder, four strokes, water cooled and direct injection diesel engine. The test run was also repeated for uncoated engine and compared. The results indicated that, an increase in engine power (6.3-11.4%) and decrease in specific fuel consumption (0.8-10.9%), as well as significant improvements in exhaust gas emissions (except NOx) and smoke opacity (19.6-28.9%) were observed in Al₂O₃ coated engine compared with that of the uncoated engine.

Keywords: low heat rejection engines; Al2O3 ceramic coatings; biodiesel; rice bran; mahua oil; methyl ester; diesel engines; vehicle emissions; air pollution; LHR engines; biodiesel; biofuels; alumina; aluminium oxide; nanomaterials; nanotechnology; combustion chamber; exhaust emissions.

DOI: 10.1504/IJVD.2012.048694

International Journal of Vehicle Design, 2012 Vol.59 No.2/3, pp.182 - 195

Received: 05 Mar 2010
Accepted: 08 Jul 2010
Published online: 23 Apr 2013 *

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Title: A comparative study of Al2O3 coated LHR engine characteristic using rice bran and mahua methyl ester as a fuel

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Title: A comparative study of Al₂O₃ coated LHR engine characteristic using rice bran and mahua methyl ester as a fuel