Experimental investigations on the performance and emission characteristics of a common rail direct injection engine using tyre pyrolytic biofuel

Abstract

The ever increasing demand from the industry and transport sector has led to an increased requirement of diesel and other oil products. These fuels belong to the non-renewable resources, their continuous availability is uncertain for the future. These factors along with the political instability causes fluctuating prices and supply of diesel .These have an impact on developing countries like India which met majority of demand from the import. Different researchers have been working to find out bio-fuels to substitute for diesel in compression ignition engines. Several fuels like liquefied petroleum gas (LPG). Biodiesel, Alcohols and compressed natural gas (CNG) are substituted these days by different automobiles. Tyre pyrolytic oil is obtained by the pyrolysis of waste tyres.Tyre pyrolytic oil is blended with mineral diesel in different proportions viz. 50, 40, 30, 20 and 10 per cent by volume. The characterization of fuel samples are done by standard methods. The performance characteristics are studied by conducting test on common rail direct injection (CRDI) test rig. Experiments were carried out to assess the performance characteristics of a CRDI diesel engine working with blends of tyre pyrolytic oil (TPO) with diesel fuel (DF) consisting of 10, 20, 30, 40 and 50 per cent of tire oil. Pyrolysis is a technical solution to handle the issue of safe disposal of used tyres. From the results it can be concluded that the brake thermal efficiency of the engine working with TPO-DF blends increases with change in blend concentration and always higher than diesel fuel.