Performance and Emission Characteristics of Cashew Nut Shell Pyrolysed Oil – Waste Cooking Oil With Diesel Fuel in a Four Stoke Di Diesel Engine

India is considered as the fourth largest energy consumer in the world after the United States, China, and Russia. India's energy consumption is increasing in a relatively faster rate in the recent years, due to population growth and economic development of the country. This work focuses on the performance of waste cooking oil and Cashew nut shell pyrolysis oil blend with diesel fuel, used in a four stoke diesel engine. The pyrolysis process was used to extract the cashew nut shell pyro oil from the Cashew nut shell bio mass. The Cashew nut shell biomass was used at the reaction temperature of 800°C to obtain cashew shell pyro oil from fast pyrolysis process. The Cashew shell pyro oil and waste cooking oil properties were studied. The blending of pyrolysis oil and waste cooking oil is done by mixing of diesel fuel by volume called as CPO5WC5D90 (5%CPO+5%WC+90D), CPO10WC5D85 (10%CPO+5%WC+85%D) and CPO15WC5D80 (15% CPO + 5%WC + 80% D). Characteristics of a fuel for Diesel fuel, and blending of CPO5WC5D90, CPO10WC5D85 and CPO15WC5D80 were analyzed. All the blended fuels were tested in a 1500 rpm single cylinder four stroke diesel engine for their performance as blended fuel. Engine test results showed that the performance for all CPO5WC5D90, CPO10WC5D85 and CPO15WC5D80related to diesel fuel. At the Maximum power output the brake thermal efficiency was found tobe 29.0% for CPO5WC5D90 and where as it was 30.5% with diesel fuel. All blended fuel has drastic reduction for the smoke and NOx emissions. The HC and CO emission slightly more forCPO5WC5D90, CPO10WC5D85 and CPO15WC5D80as fuel compared to diesel fuel at all power outputs.