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ISSN: 2167-7670

Advances in Automobile Engineering
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Research Article

Performance and Emissions Characteristics of Variable Compression Ignition Engine

K Satyanarayana1, Naik RT2* and SV Uma-Maheswara Rao3

1ANITS, Mechanical Engineering, Andhra University, Visakhapatnam -531162, India

2Department of Mechanical Engineering, Indian Institute of Science, Bangalore-560012, India

3Department of Marine Engineering, Andhra University, Visakhapatnam-531006, India

*Corresponding Author:
Naik RT
Department of Mechanical Engineering
Indian Institute of Science
Bangalore-560012, India
Tel: +91-80-22932960
E-mail: [email protected]

Received date: June 01, 2016; Accepted date: July 05, 2016; Published date: July 08, 2016

Citation: Satyanarayana K, Naik RT, Uma-Maheswara Rao SV (2016) Performance and Emissions Characteristics of Variable Compression Ignition Engine. Adv Automob Eng 5:146. doi:10.4172/2167-7670.1000146

Copyright: © 2016 Satyanarayana K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Variable Compression Ratio engine test rig is used to determine the effect of compression Ratio on the performance and emissions of the engine. The objective is to determine the optimum compression ratio for the better performance and lowering the emissions. In order to determine the optimum compression ratio, experiments were carried out on a single cylinder four stroke variable compression ratios of 16.5, 17.0, 17.5, 18.0 and 19.0 in a Diesel engine. The performance characteristics of the engine namely break power, brake thermal efficiency, brake specific fuel consumption and other parameters are studied and also conducted the emissions test namely Carbon monoxide, carbon dioxide, hydrocarbons, Nitrogen oxides and other emissions at various conditions. It is observed that a significant improvement in the performances and lowered the various emissions also at a compression ratio of 17.0 compared to other compression ratios due to the enhancement of the overall combustion process.


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