COMBUSTION AND EMISSION ANALYSIS OF A FOUR STROKE IC ENGINE USING (Bio diesel produced from Kranja oil by transesterification process) [ READ ]
The performance, emission and combustion characteristics of a single cylinder four stroke variable compression ratio engine when fuelled with blends Karanja methyl ester 20%, 40%, 60% with diesel (on a volume basis) and Kranja oil 10%,20% with diesel(on a volume basis)are investigated and compared with diesel.The suitability of Karanja oil methyl ester as a bio fuel has been established in this study. Bio diesel produced from Kranja oil by transesterification process has been used in this study. Experiment has been conducted at a fixed engine speed of 1500 rpm, 0% load to 100% load and at a compression ratios of 16:1, 17:1 and 18:1. The impact of compression ratio on fuel consumption, combustion pressures and exhaust gas emissions has been investigated and presented. Optimum compression ratio which gives best performance has been identified. The results indicate longer ignition delay, maximum rate of pressure rise, lower heat release rate and higher mass fraction burnt at higher compression ratio for Karanja oil methyl ester when compared to that of diesel and Karanja oil. The brake thermal efficiency for Karanja oil methyl ester blends, Karanja oil and diesel has been calculated and the blend B40 is found to give maximum thermal efficiency. The blends when used as fuel results in reduction of carbon monoxide, hydrocarbon and increase in nitrogen oxides emissions.
The performance, emission and combustion characteristics of a single cylinder four stroke variable compression ratio engine when fuelled with blends Karanja methyl ester 20%, 40%, 60% with diesel (on a volume basis) and Kranja oil 10%,20% with diesel(on a volume basis)are investigated and compared with diesel.The suitability of Karanja oil methyl ester as a bio fuel has been established in this study. Bio diesel produced from Kranja oil by transesterification process has been used in this study. Experiment has been conducted at a fixed engine speed of 1500 rpm, 0% load to 100% load and at a compression ratios of 16:1, 17:1 and 18:1. The impact of compression ratio on fuel consumption, combustion pressures and exhaust gas emissions has been investigated and presented. Optimum compression ratio which gives best performance has been identified. The results indicate longer ignition delay, maximum rate of pressure rise, lower heat release rate and higher mass fraction burnt at higher compression ratio for Karanja oil methyl ester when compared to that of diesel and Karanja oil. The brake thermal efficiency for Karanja oil methyl ester blends, Karanja oil and diesel has been calculated and the blend B40 is found to give maximum thermal efficiency. The blends when used as fuel results in reduction of carbon monoxide, hydrocarbon and increase in nitrogen oxides emissions.
