The experimental investigation on single cylinder compression ignition engine fuelled by neem biodiesel with varying injection and operating parameters to ensure engine performance and emission by response surface methodology

摘要

The objective of this study is to find the optimal situation of the engine run posses sets of mean responded terms like performance responses of break thermal efficiency (B.T.E.), mechanical efficiency (M.E.), break specific fuel consumption (B.S.F.C.), and emissive responses of nitrogen oxides (NO_x), carbon monoxide (CO) and Un-burnt hydrocarbons (HC). These results were taken on the single cylinder, water cooled 10 H.P diesel engine fuelled with different blending of neem biodiesl-diesel. Trial was run on engine with different injection pressure (220bar & 240bar), variable injector nozzle holes (3, 4 & 5) and with varying loading condition (25%, 50%, 75% & 100%). Experimental readings and finding are further examine by statistical tool like response surface methodology through full factorial design matrix conducting 72 sets of experimental result. B23 neem biodiesel-diesel blends injected at 240 bar pressure and 5 hole injector nozzle at 87% engine load was found optimum response for the 10 H.P. single cylinder diesel engine at 1500 rpm. Desirability approach of RSM indicates two very close optimization results found with 0.941 and 0.939 factors. The final result of this work revealed that the values of optimum responses found by validation tests and the percentage of error in prediction was up to 2%.