Performance Characteristics of Variable Compression Ratio Engine Using COME Biodiesel

Abstract:

This research work investigates the effects of compression ratio on engine performance characteristics of variable compression ratio engine fuelled with biodiesel. The cottonseed oil methyl ester is blended with neat diesel and used as fuel at different compression ratios i.e., 18, 19, 20, 21 and 22. The analyses of engine performances characteristics were carried out for different proportions of cottonseed oil methyl ester blends (b25, b50, b75 and b100). It is inferred that at higher compression ratio, the brake thermal efficiency attained is higher when compared to compression ratio 18. The brake specific fuel consumption for the increment of compression ratio is found to be lower at all blend ratios. The higher brake thermal efficiency was found for b50 at CR 21. It is evident that the exhaust gas temperature reduced with the increment of CR.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 907-912
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.907
• Online since: July 2014
• Authors: M. Santhosh*, K.P. Padmanaban
• Keywords: BTE, COME, EGT, VCR Engine

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