Engine Performance with LRME at varying Compression Ratio

Author(s): 
N. K. Patel†, R. G. Kapadia‡

Affiliation(s): 

†Department of Mechanical Engineering, Charotar University of Science & Technology, At & Po Changa, India, 
‡Department of Mechanical Engineering, Shri S’ad Vidya Mandal Institute of Technology, Bharuch, India
 
Cite this paper
N. K. Patel, R. G. Kapadia, “Engine Performance with LRME at varying Compression Ratio”, Journal of Mechanical Engineering Research and Developments, vol. 40, no. 4, pp. 537-546, 2017. DOI: 10.7508/jmerd.2017.04.002

ABSTRACT: It was proved internationally about viable production of biodiesel from vegetable oils, obtained by crushing edible as well as non-edible seeds. The objective of present study was performance evaluation for a direct-injection four in line cylinder I C engine using Leptadenia Reticulatta Methyl Ester (LRME) as fuel.  LRME was obtained from Leptadenia Reticulatta (LR) seeds through process of transesterification. LR seeds were identified from forest area of Chotta Udepur region of Gujarat state in India. They were practically unexplored for production of biodiesel and its use in IC engine. Tests were carried out to evaluate performance of I C engine running with B0, B20, B40, B60, B80 and B100 (LRME) at a different compression ratio (16:1, 17:1 and 18:1) and load condition respectively. The difference in Brake Specific Fuel Consumption (BSFC) between diesel and LRME were 248, 150, and 172 gkW-1h-1 at full load conditions for compression ratio 16, 17 and 18 respectively. The results obtained when B100 was used instead of diesel (B0) as fuel in same engine indicates similar engine performance at higher compression ratio under identical operating conditions. At lower load condition, Brake Thermal Efficiency (BTE) with diesel was higher as compared to blends of biodiesel. But at higher load condition, BTE was higher with B20 as compare to that of diesel (B0). The investigation on performance of an engine with LRME and its blends indicates LRME is good alternative to I C engine.

Keywords : Biodiesel; LRME; LRO; Performance.

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