Experimental Evaluation of Biohythane Fueled Thermal Barrier Coated Dual Fuel Engine

Performance and emission parameters of thermal barrier coated (TBC) compression ignition engine fuelled with various blends biohythane and diesel are experimentally evaluated. The objective of the work was to enhance the engine performance and emission utilizing biohythane as an alternative source of energy. An experimental method with various biohythane blends was adopted for the dual fuel engine operation and the obtained results were compared to the baseline data with neat diesel. The evaluated engine parameters are BSEC, BTE, CO, HC, NOx, and smoke emissions. Engine tests are performed at a constant speed of 1500 rpm and a compression ratio of 18:1. The mixture of supplied gaseous fuel was blended with 85–95% biomethane and 5–15% biohydrogen, mixed with the inlet air, and supplied through the intake manifold for both coated and uncoated conditions. Results indicated that up to 15% of biohydrogen enrichment with TBC improved the engine BTE by 6% compared to the diesel-only mode. The emission characteristics such as HC, CO, and smoke were reduced up to 16.2, 29.1, and 62.6%, respectively, with TBC and biohythane in dual-fuel mode due to the low carbon content with improved combustion characteristics.