© April 2018 | IJIRT | Volume 4 Issue 11 | ISSN: 2349-6002 IJIRT 146109 INTERNATIONAL JO URNAL OF INNOVATIVE RESEARCH IN TECHNOLOGY 1559 Experimental Study of Performance of VCR Diesel Engine Using CME & SBME Blends V. Mahendra Reddy 1 , G.Raju 2 , Dr.S.C.V.Ramana Murthy Naidu 3 1 P.G Student, Kallam Haranadha Reddy Institute of Technology, Chowdavaram, Guntur (Dist.), A.P 2 Associate Professor, Dept. of Mech, Kallam Haranadha Reddy Institute of Technology, Chowdavaram, Guntur (Dist.), A.P . 3 Professor & HOD, Dept. of Mech, Kallam Haranadha Reddy Institute of Technology, Chowdavaram, Guntur (Dist.), A.P Abstract- Fossil fuels play a vital role in rapid depletion of conventional energy reserves along with increasing demand and also major contributors of air pollutants. Major portion of today’s energy demand in India is being met with fossil fuels. Hence it is high time that alternate fuels for engines should be derived from indigenous sources. As India is an agricultural country, there is a wide scope for the production of vegetable oils (both edible and non-edible) from different oil seeds. The main aim of the present experiment is to convert the vegetable oil to biodiesel by reducing viscosity close to that of conventional oil and to analyze the performance characteristics of a single cylinder, VCR diesel engine fuelled with cotton seed oil methyl esters and soya been seed oil methyl esters biodiesel blends. In the initial stage the tests are conducted on the four stroke single cylinder VCR diesel engine with constant speed by using diesel and base line data is generated by varying loads. In second stage, experimental investigation has been carried out on the same engine with same operating parameters by using the Ethyl Esters of Cotton seed oils in different proportions as CB10, CB20 and CB30, and to find out the performance parameters at different compression ratios of CR17 and CR21. Finally concluded that the bio fuels having the better performance than diesel in different aspects Index Terms- Bio-Diesel, VCR Diesel Engine, Soya bean oil methyl esters, Cotton seed oil methyl esters. I. INTRODUCT ION In this modern world, almost all countries overly dependent on fossil fuels to meet their requirements. The requirements include power generation and developing the country in economical way. Rising prices of these fossil fuels and their potential shortages have raised uncertainties about the security of energy supply in future and increasing the use of fossil fuels causes serious environmental problems. Hence, there is a primary need to use some alternative sources. Some well-known alternative fuels are bio- alcohols, biodiesel, chemically stored electricity i.e. batteries and fuel cells, hydrogen, vegetable oil and other biomass sources. Bio-alcohols include methanol, ethanol, propanol, and butanol. Bio-butanol can be used directly in a gasoline engine and is often claimed as a direct replacement for gasoline. Ethanol and methanol are most commonly used biofuels worldwide. Rapid growth of industrialization and depleting resources of fossil fuels coupled with air pollution caused by exhaust gases emitted by diesel engines thereby causing global warming has necessitated the need for alternatefuel. Alternative fuels are commonly known as nonconventional or advanced fuels which are derived from renewable bio-mass resources. It has strengthened the hands of the governments to promote sustainable development and ways to supplement conventional energy resources in meeting energy requirements of transportation fuels an India’s vast rural population. In India, very little effort has been made towards research, development and production of bio fuels. Developing countries also view bio fuels as a potential means to stimulate rural development and create employment opportunities. Therefore, keeping in view farmer’s interest and food security, efforts are being made to develop bio fuels based on non-food feed stocks in India as Indian economy is largely dependent upon agricultural