IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 2 Ver. V (Mar - Apr. 2015), PP 37-44 www.iosrjournals.org DOI: 10.9790/1684-12253744 www.iosrjournals.org 37 | Page Effect of Varying Load on Performance and Emission of C.I. Engine Using WPO Diesel Blend Ankit Jani 1 , Tushar Patel 2 , Gaurav Rathod 3 1 (ME Scholar, Dept. of mechanical engineering, KSV University, Gujarat, India) 2 (Associate Professor, Dept. of mechanical engineering, KSV University, Gujarat, India) 3 (Associate Professor, Dept. of mechanical engineering, KSV University, Gujarat, India) Abstract : Diesel engines are widely used in heavy duty applications like transportation, power generation etc. but the quantity of diesel is limited in the world. So the price of diesel increased as the use of diesel increased day by day. With increase in use of these fossil fuels environmental problem is one of the issues which are increased day by day. These environmental concern and limited quantity of fuels have caused interests in the search for alternative fuels for IC engine. This paper represents the effect of varying load on performance and emission of diesel engine using WPO diesel blend in different proportion. Experiment was carried out by taking 0%, 10%, 20% and 30% WPO diesel blend. Experimental results shows that SFC decreases with increase in load but ME and BTE increases in all blend and 30% WPO diesel blend has minimum SFC and higher BTE and ITE compare to other blend proportion. Emission results show that emission of HC, NO X and CO 2 increases with increase in load. With compare to diesel Emission of CO and CO 2 is lower in 30% blend and NO X emission is lower at higher load but emission of HC increased. So diesel engine can be run at 30% WPO diesel blend. Keywords – Blended fuel, Diesel fuel, Engine Performance, Engine Emission I. Introduction With time passing by, the fossil fuel reserves are depleting at a faster rate, causing continuous increase in price of petroleum products all over the world. The high price of petroleum products is a big concern for Indian economy. India imports on an average 80% of total demand of crude oil. Therefore an alternative cheaper fuel is required to fulfil the needs of common man. Alternative source of fuel lies in plastic. In India 56 lakh tones of plastics are generated each year and only 60% of it is recycled. Safe method of disposing the waste plastic has not yet been implemented here, and dumping of waste plastic underground is hazardous to the environment. But we can use it as an alternative source of fuel for diesel. This will save the environment from hazardous effect as well as to boosting the Indian economy. Previously, many researches were done experiment on alternative fuels. All of them showed encouragement results. However, the drive for search of a new source of alternative fuel, we have performed the engine performance test by using Waste Plastic oil + Diesel of various blends viz. B10, B20, B30. We found that the blends of Diesel & Waste Plastic Oil gives better values to Diesel fuel in the Kirloskar Diesel engine, without any further modification in the engine itself. [1] II. Literature Review Sachin kumar et al. (2013) have been used blend of diesel and waste plastic oil as a fuel in diesel engine and check performance and analysis of engine. The experimental results show that the SFC increases with increase in WPO blend ratio and decreases with increase in engine load. Mechanical efficiency increases with increasing brake power for all fuel blends. The unburnt hydrocarbon emission decreases with increase in the engine load and increases with increase in percentage of waste plastic oil in blends. The carbon dioxide emission for the blends is lower than diesel for almost all loads and all blends [2]. G. Nagarajan et al. (2010) have been used blend of diesel and waste plastic oil and it is observed that the engine could operate with 100% waste plastic oil and can be used as fuel in diesel engines. NOx was higher by about 25% and carbon monoxide (CO) increased by 5% for waste plastic oil operation compared to diesel fuel (DF) operation. Hydrocarbon was higher by about 15%. Engine fueled with waste plastic oil exhibits higher thermal efficiency up to 80% of the full load compared to DF operation [3]. M. Mani et al. (2009) have been used waste plastic oil as a fuel. In the present work, the influence of injection timing on the performance, emission and combustion characteristics of a single cylinder, four stroke, direct injection diesel engine has been experimentally investigated using waste plastic oil as a fuel. Tests were performed at four injection timings (23, 20, 17 and 14 bTDC). When compared to the standard injection timing of 23 BTDC the retarded injection timing of 14 bTDC resulted in decreased oxides of nitrogen, carbon monoxide and unburned hydrocarbon while the brake thermal efficiency, carbon dioxide and smoke increased under all the test conditions [4].