Optimization of injection parameters and low-reactive fuel share in CRDI engines with biodiesel–diesel–isoamyl alcohol ternary blends
G. Praveen Kumar Yadav, Pullarao Muvvala, R. Meenakshi Reddy
Abstract
The need to reduce dependence on conventional fossil fuels has sparked interest in biodiesel and the development of strategies to increase diesel engine efficiency. This study investigates the potential of ternary fuel blends such as gossypium seed biodiesel (B20), diesel, and isoamyl alcohol to improve engine performance and reduce emissions. Using Taguchi gray relation analysis, optimal intake parameters, including timing of injection (TOI), pressure of injection (POI), and low-reactive fuel (LRF) percentage, were determined. The findings highlight the significant influence of TOI on emissions and combustion, with POI and LRF affecting thermal efficiency and fuel consumption. Results demonstrate that TOI of 27° bTDC, LRF of 25%, and POI of 240 bar achieve optimal performance and emissions. The Taguchi analysis of variance (ANOVA) indicates that TOI significantly influences CO2, smoke, CO, and HC emissions, while POI particularly affects brake thermal efficiency, and LRF has significant effects on brake specific fuel consumption and NOx emissions. This study provides valuable insights for sustainable engine operation using biodiesel, diesel, and alcohol blends.