Effect of Producer Gas from Redgram Stalk and Combustion Chamber Types on the Emission and Performance Characteristics of Diesel Engine

• Main Authors: Akkoli, K. M., Banapurmath, N. R., Suresh, G., Soudagar, Manzoore Elahi M., Khan, T. M. Yunus, Baig, Maughal Ahmed Ali, Mujtaba, M. A., Hossain, Nazia, Shahapurkar, Kiran, Elfasakhany, Ashraf, Alsehli, Mishal, Yaliwal, V. S., Goudadi, S. A.
• Format: Article
• Published: MDPI 2021
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.um.edu.my/34483/

The engine performance has been improved by modifying the combustion chamber shape of the diesel engine for dual-fuel operation with liquid fuel and producer gas (PG). The combined effect of gaseous fuel from redgram stalk and combustion chamber type on the emission and performance of blended-fuel of diesel and HOME biodiesel-PG has been investigated. In this experimental study, four varieties of combustion chambers hemispherical (HCC), low swirl (LSCC), dual swirl (DSCC), and toroidal re-entrant (TRCC) were analyzed comprehensively. The results presented that the TRCC configuration with a given nozzle geometry has 9% improved brake thermal efficiency (BTE) and 10.4% lower exhaust gas temperature (EGT). The smoke, unburnt hydrocarbon (UBHC), and carbon monoxide (CO) decreased by 10-40%, but a 9% increase in nitrogen oxides (NOX) emission levels was observed with TRCC. The delay period and combustion period were decreased by 5% and 7%. The fuel replacement of about 71% for the diesel-PG combination with HCC and 68% for the HOME-PG combination with TRCC was achieved.