International Journal of Current Engineering and Technology E-ISSN 2277 – 4106, P-ISSN 2347 – 5161 ©2018 INPRESSCO ® , All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article 1023| International Journal of Current Engineering and Technology, Vol.8, No.4 (July/Aug 2018) Experimental investigation of Combustion, Performance and Emission in single cylinder diesel engine operated on blends of diesel and waste cooking oil Ajay Kumar Yadav * and Anoop Kumar Pathariya *Mechanical Engineering department, RGPV University,TIT college Bhopal, India Received 22 May 2018, Accepted 25 July 2018, Available online 27 July 2018, Vol.8, No.4 (July/Aug 2018) Abstract We all are aware with the limited amount of energy and there resources. Today the agriculture sector needs good amount of energy, mainly energy from CI engine. As the consumption of energy increase the demand of energy also increases, mainly in petroleum sector. Today 90 % of the total demand is full filled by the fossil fuels. The petroleum sector needs some alternative fuels to reach the demand. This research straightly focused on the use of waist cooking oil This concept also needs to aware with the consequences of reusing the WCO domestically and in restaurants. whenever the demand of energy needed we searches about alternative fuels so to complete the research for a alternative fuel we have to learn about fossil fuels ,exhaust emissions ,global warming etc. Here we used blends of waist cooking oil and diesel oil which are prepared by volume name as B5 using 5% of WCO and B10 comprise 10% WCO. The combustion , performance and emission properties are studied experimentally by combustion of different blends at different loads. It has to observed that in performance characteristic Mechanical efficiency is more for B10 when compare with B5 and conventional Diesel. When the load is increases fuel consumptions shows a considerable fall while it is noticeable that CO emission trend decreases and NOx increases after increasing some loads and HC are also indicate a down fall trend ,on other hand CO2 emissions shows less affected. Keywords: Combustion, Performance and Emission etc. 1. Introduction 1 Energy is a root of today's world which is available in different forms. Every country needs to use the different forms of energy in to its required form for the development and welfare of there mankind. The uses of energy spread its area in various sector like transportation, industries, agriculture and domestic sectors etc. Now a day, energy crisis is the prime issue for the world. Whole world expected that in this century the cost of crude oil or petroleum product will become coastally and also les available. The availability of major sources available in India like oil and cooking oil has increased from 0.25 million tons in 1947 to about 34.56 million ton in 1989-90.(S. Ram Kumar et al, 2016; K. Nantha Gopal et al, 2014 ) According to latest reports India is become a second largest importer of cooking oil in the world. Waist cooking oil is considered as the potential oil which can be used after treatment with the diesel oil. There some qualities of WCO which strongly support the use of WCO with diesel fuel (S. Kathirvel et al *Corresponding author’s ORCID ID: 0000-0002-9561-0818 DOI: https://doi.org/10.14741/ijcet/v.8.4.19 2016). It should be noted that this also become a effective way to dispose the waist cooking oil by using it as a optional fuel in IC engines and helps to environments from the oil pollutiotn. As we all are well aware with the pollution due to the diesel hence many researchers are working with this problem to helps the environment (K. Muralidharan et al, 2011). There are many resources available to use directly with the diesel which are eco friendly and possess the properti0es near to the diesel fuel like Biomass, Biogas, LPG, CNG, vegetable oil and biodiesels (A. Abu-Jrai et al, 2011). The bio-fuels might be option for solution for worldwide crises of petroleum and also for energy conservation, efficiency and environmental protection (X.J. Man, C.S. Cheung et al,2016). 2 Materials and methods WCO production process The production of WCO in each country is on large scale and also vary depending on consumption and there need. In place of refine edible vegitable oil WCO is help to improve the economic feasibility of biodiesel. Before using of WCO, it should be properly treated to