Title: Experimental analysis of a DI diesel engine fuelled with light fraction of pyrolysis oil

Authors: Kapura Tudu; S. Murugan; Saroj Kumar Patel

Addresses: Department of Mechanical Engineering, National Institute of Technology, Rourkela, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, India

Abstract: Recently, many pilot pyrolysis plants have been installed in different parts of the world to recycle waste automobile tyres. The light fraction of pyrolysis oil (LFPO) obtained in a pilot plant has properties better than those of the crude tyre pyrolysis oil (TPO) which is obtained in a laboratory level pyrolysis plant. This paper presents the determination of cetane number of the LFPO and its diesel blends, using a correlation. They were then used as fuels in a small powered, single cylinder, direct injection (DI) diesel engine to establish the results of combustion, performance and emission parameters of the engine. The cetane number of the LFPO and its blends were observed to be lower than those of diesel at all loads. The combustion of the LFPO-diesel blends started little later, and its duration was longer for the LFPO-diesel blends compared to that of diesel fuel at full load. The ignition delay was also found to be longer for all the blends tested in this study at full load. [Received: August 22, 2014; Accepted: January 1, 2015]

Keywords: DI diesel engines; engine performance; combustion; emission parameters; scrap tyres; pyrolysis oil; direct injection; automotive tyres; tyre recycling; car tyres; light fraction; cetane number; diesel blends; engine emissions; ignition delay.

DOI: 10.1504/IJOGCT.2016.074770

International Journal of Oil, Gas and Coal Technology, 2016 Vol.11 No.3, pp.318 - 338

Received: 07 Sep 2014
Accepted: 13 Jan 2015
Published online: 17 Feb 2016 *

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