Comparative analysis of biodiesel production from Alphonso and Bangalora seeds: Quantitative and qualitative characterization and their application

The growing crisis in fossil fuel resources has led to an increased interest in exploring biodiesel derived from inexpensive waste materials. Therefore, the manuscript explores the production of biodiesel from two varieties of mango seeds-Alphonso and Bangalora. It delves into various aspects, including the extraction process, transesterification, characterization, engine performance, and economic analysis. The oil extracted from Bangalora seed kernels yielded a maximum of 93.69 % biodiesel, outperforming the optimized conditions of 55°C, 60 min, 450 rpm stirring, 1 % catalyst, and 20 wt% ethanol. Qualitative analysis has confirmed that the composition of fatty acid ethyl esters in Bangalora biodiesel is superior in quantity compared to that of Alphonso. Bangalora biodiesel (B100) exhibits enhanced in-cylinder peak pressure and heat transfer rates under both 75 % and 50 % engine loading conditions. Its brake thermal efficiency, brake-specific fuel consumption, and indicated thermal efficiency are comparable to those of conventional diesel; it boasts an improved mechanical efficiency of 74.56 %, attributed to its higher cetane number. Despite minor differences in quality and quantity, both biodiesel variants demonstrate significant potential for engine performance and guarantee scale-up. The cost for one liter of biodiesel is $0.51, with a projected return of 62.95 % and a payout period of 15.88 years. The produced biodiesel represents an acceptable fuel for enhancing engine performance while contributing to reduced dependence on foreign oil, promoting energy security, minimizing fire risk, and strengthening the domestic economy. • Compared the excellence of biodiesel derived from various Mangifera indica seeds. • Composition of fatty acid ethyl esters in Bangalora biodiesel superior in quantity. • Bangalora biodiesel exhibits enhanced engine performance at high loading condition. • Characteristics of biodiesel and its blends guarantee scaling-up process. • The calculated cost for one liter biodiesel is $0.51 with a rate of return 62.95 %.