EFFECT OF INJECTION PRESSURE ON PERFORMANCE AND EMISSION ANALYSIS OF CI ENGINE USING NON EDIBLE VEGETABLE OILS BIODIESEL AND THEIR BLENDS WITH DIESEL

Madhu K N, Peter Fernandes

Abstract: Gradual depletion of world petroleum reserves and increase in the exhaust emissions day by day have led to an urgent need for alternative fuels to replace diesel. Vegetable oils biodiesel is considered as an alternative for diesel because of their properties which have been close to pure diesel. In the present study non edible vegetable oils like Honge and Jatropha oils biodiesel and their blends were used as fuel in a constant speed direct injection diesel engine. Further effect of injection pressure on the performance parameters such as brake thermal efficiency, brake specific fuel consumption, brake power and emission parameters such as HC, CO and NOX were investigated in a constant speed direct injection diesel engine with varied injection pressures of 180, 200 and 220 bar.The test results showed that Honge and Jatropa oil biofuel blends are having good performance and emission results at 200 bar injection pressure when compared to 180 and 200 bar injection pressure. The test results also showed that performance and emission results of Honge and Jatropa biofuel blends are near to that of the results obtained for pure diesel and they can be used to replace pure diesel.

Keywords: Performance parameters, Emission parameters, Biodiesel, Jatropa oil, Honge oil

DOI: https://doi.org/10.15623/ijret.2015.0405061