Open AccessInvestigation on the effect of compression ratio on the performance and emission characteristics of pongamia biodiesel diesel blends in CI engine using response surface methodology
Author(s) -
S. N. Nagesh
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1276/1/012072
Subject(s) - response surface methodology , biodiesel , brake specific fuel consumption , pongamia , diesel engine , four stroke engine , diesel fuel , thermal efficiency , factorial experiment , materials science , central composite design , design of experiments , cylinder , compression ratio , automotive engineering , mathematics , process engineering , mechanical engineering , engineering , combustion , internal combustion engine , chemistry , statistics , combustion chamber , biochemistry , organic chemistry , catalysis
The present work focusses on the interactive effect of variables such as compression ratio, blend and loading conditions on the performance and emission characteristics of biodiesel in diesel engine. Response Surface Methodology (RSM) based on the factorial design of 3 n is used to design the experiments. The experiments are conducted on single cylinder, water cooled CI engine according to the design matrix and results are tabulated. Mathematical models are developed to study the interactive effect of performance parameters such as Brake specific fuel consumption (BSFC), Brake thermal efficiency (BTE) and emission parameters such as carbon monoxide (CO), unburnt hydro carbon (UHC) using regression methodology. Optimization of the problem is formulated using desirability approach to get better performance and lower CO, UHC emissions. Statistical analysis revealed the optimum combination for the blend B60, CR-18 and load 42% is considered for the pongamia biodiesel-diesel blends.