Performance Analysis on PP blended Bio-Diesel tested on a CI Engine

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S.P. Rajesh
B. Stanly Jones Retnam
M. Devanand
A. Haiter Lenin
A. Manjunathan

Abstract

The presence of existing fossil fuels has come to an extinction stage from where feasibility and further availability is very much restricted. This led to the introduction of novel biofuels by blending them with existing diesel. In recent day’s plastics plays a major role in the human society in all aspects in day-to-day life. The decomposition of these materials nearly takes hundreds of years when dumped under the earth and causes many hazards to the environment in which we live. Hence recycling of these materials plays a vital role. This can be done in many ways; one among them is to convert them in to fuels by pyrolysis process in which the plastic is thermally degraded under vacuum stage to extract the plastic oil. All types of plastic wastes can be converted plastic oil but in our work we are mainly concentrating on the Polypropylene (PP) wastes. This is preferred as it is used in a very vast quantity everywhere because it is used in packing materials, as cans holding chemicals, low cost to make and posses’ good strength too. This material is used in a very large quantity in automobile industries and medical appliances. This material plays a major consumption of about 19.5% which is next to polythene of about 33.5%. The main drawback of this material is it is not an easy one to recycle as it burns and chars on heating. Hence it is a very costly process to recycle. Hence alternative sources such as pyrolysis are highly preferred. In this work the pyrolysised PP was blended with pure diesel of about 4% to 12% and the performance test was conducted on four-stroke constant speed water cooled Kirloskar CI diesel engine. The performance parameters such as indicated power, brake power, friction power, fuel consumption and mechanical efficiency were evaluated. These values where then compared with the existing pure diesel’s performance. The results projects more are less equal performance in all aspects.

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