Performance and Emission Characteristics of Mahua Biodiesel blends

Abstract

The performance and emission characteristics of an engine that burns with Mahua biodiesel of 10%, 20% and 30% blends with diesel (on a volume basis) per unit area is investigated and compared with normal diesel fuel. The investigation is carried out to enhance the efficiency of the diesel fuel using biodiesel blends. The engine utilizes a direct injection system with a variable compression ratio. Also, the experiment was allotted with explicit injection temporal arrangement at 120 before the top dead center (BTDC) with the various compression ratios (air-fuel ratio) per unit area as 15:1, 16:1 and 17:1. Experiments were carried out at a constant speed of 1500 revolutions per minute. The results of the compression ratio relationship on brake thermal efficiency, specific fuel consumption, and emission characteristics have been investigated and associated. The mix blend 10 (B10) and the Compression ratio (CR) 17 are found to offer most mechanical efficiency at higher compression magnitude relations and it turns out to be 27.32%. Conjointly the Specific Fuel consumption (SFC) of mix B10 is found to be reduced in comparison to that of plain diesel. Emission parameters per unit area were analyzed with different various blends and different compression ratio relationships and compared with diesel fuel. The emission of Carbon monoxide oxides (CO), Hydrocarbons (HC) were generated with a rise in mixing magnitude relation and compression magnitude relations of most loads. Conjointly carbon dioxide emissions were found to be more than in diesel. The engine performance was found to be optimal once persecution of B10 as fuel at a compression magnitude relation of 17:1 throughout full load condition is when made.