Experimental Investigation of the Effect of Gasoline Fuel on Engine Performance, NOx reduction, and Engine Wear of a 38.8L Military Heavy Duty CIDI Diesel Engine Applying EGR 2022-01-1027

Rapidly depleting oil reserves and strict pollution regulations have made it necessary to find a substitute for diesel fuel. In the context of the multi-fuel strategy program, gasoline has improved the fuel availability for both combat and commercial highway vehicles with diesel engines. This study examines the effect of gasoline fuel on the engine wear, performance, and emission of a military, heavy-duty, supercharged diesel engine. In a CIDI diesel engine, the use of Gasoline has been considered to be significantly sustainable with engine performance and reduced pollutants. For this research a military heavy-duty, 38.8 L, 585kW, diesel engine, the EGR technique was used for gasoline and diesel fuels.

Furthermore, the impact of nanoparticles on NOx emissions was also explored. NOx emission reduces in diesel engines by using the EGR technique. Two test fuels were tested in their trials for a total of 100 hours of engine endurance assessment. After every 20 hours of engine operation, 100 mL of lube oil was extracted from the oil sump and tested for elemental analysis. Ferrography and atomic absorption spectroscopy have been used to measure the composition of metal wear debris. It was used to evaluate the metal wear on the exposed cylinder liner. A new engine part was used to perform durability tests for test fuels. For gasoline-powered engines, metal wear was estimated to be 10 to 12 percent higher than for diesel-powered engines. Gasoline fuel's engine performance was 4.5% lower than diesel fuel. When the engine was running on Gasoline, NOx emissions were reduced by 28%, and nanoparticle emissions were also reduced.