Experimental Investigation on Performance and Emission Characteristics of Low Heat Rejection Diesel Engine with Ethanol as Fuel | Science Publications

American Journal of Applied Sciences

P. Lawrence¹  B. Deepanraj¹  P. K. Mathews¹ 

关键词: Partially Stabilized Zirconia (PSZ);    Low Heat Rejection (LHR);    heat rejection;    Exhaust emissions;    emission characteristics;   

DOI  :  10.3844/ajassp.2011.348.354

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Depleting petroleum reserves on the earth and increasing concerns aboutthe environment leads to the question for fuels which are eco-friendly safer for human beings. Theobjective of present work was to investigate the effect of coating on piston, cylinder head and valves of aDiesel engine on the performance and emission characteristics of exhaust gases using wet ethanol (5%water) as a fuel. Approach: In this study the effect of Zirconia coating on the performance and emissioncharacteristics of diesel engine was investigated using ethanol as sole fuel. For this purpose the cylinderhead, valve and piston of the test engine were coated with a partially stabilized Zirconia of 0.5 mm thickby the plasma spray coating method. For comparing the performance of the engine with coatedcomponents with the base engine, readings were taken before and after coating. To make the dieselengine to work with ethanol a modification was done. Results: The engines performance was studied forboth wet ethanol and diesel with and without Zirconia coating. Also the emissions values are recorded tostudy the engines behavior on emissions. Satisfactory performance was obtained with Zirconia coatingcompared with a standard diesel engine. The brake thermal efficiency was increased up to 1.64% forethanol with coating and there was a significant reduction in the specific fuel consumption. The NOx, COand HC emissions in the engine exhaust decreases with coating. Conclusion: Using ethanol as sole fuelfor a LHR diesel engine causes an improvement in the performance characteristics and significantreduction in exhaust emissions.

【 授权许可】

Unknown