An ideal investigation on conventional CRDI engine for optimum paradigm analysis of performance and exhaust emissions by using oxygenated and hydrogen fuel: An experimental green dual fuel approach

In this research, we look at how adding hydrogen to a conventional diesel engine (CRDI) with a diesel and sesame biodiesel blend (B20) changes the performance of engines. Depending on the load, H₂ is pumped into the engine intake manifold at 7 lpm, 10 lpm, 60 %, 80 %, or 100 %. Due to its HCV and ability to reduce emissions in ways like as CO, CO₂ and HC, hydrogen enrichment is beneficial to both the BTE and BSEC. However, this increase in emission of NOx is attributable to the higher EGT. The ignition delay (ID), in-cylinder pressure (ICP), and heat release rate (HRR) are all combustion parameters as well as combustion duration (CD), are all enhanced by the use of hydrogen. At 80 % load, the B20 + 7H₂ fuel has 27.1 % higher BTE and 32.3 % lower BSEC compared to the pure diesel fuel. When compared to B20, NOx, Hydro Carbon, Carbon monoxide, and Carbon dioxide emissions go down by 13 %,34.6 %, 27 %, and 25.1 %, respectively. Under maximum throttle, the B20 + 7H₂ blend reduces the HC, CO and C0₂ emissions and improves ICP 18.3 % and HRR by up to 18.78 %, while reducing CD by 14.6 %.