Experimental study demonstrates improved performance and reduced emissions in diesel engines using hydrogen and biodiesel blends, indicating potential for cleaner energy.
Key Points
The study aims to investigate the effects of hydrogen injection on the performance and emissions of a diesel engine using blends of ethanol and Nahar oil biodiesel.
Tested a single-cylinder direct-injection diesel engine under varying loads at a constant speed of 1500 rpm.
Evaluated two blends of biodiesel with ethanol and three hydrogen injection durations.
Conducted sensitivity analysis using heat maps to assess emissions characteristics.
Increased brake thermal efficiency by 5.43% with hydrogen injection at 2000 µs.
Reduced brake specific fuel consumption by 2.42% compared to baseline biodiesel-ethanol blend.
Lowered emissions of NO x by 4.23%, HC by 3.45%, and CO by 19.36% at full load.