Abstract—Tyre recycling is one of the attractive solutions
considered today, for the waste management of automobile
waste tyres. In a practical tyre recycling plant that follows
vacuum pyrolysis, light fraction pyrolysis oil(LFPO), heavy
fraction pyrolysis oil(HFPO), non-condensable gas, carbon
black and less fraction of steel wire are produced. Early
investigations carried out by the authors reveal that a blend
comprising 60% light fraction tyre pyrolysis oil(LFPO) and
40% diesel fuel(40LFPO) in it can be used an optimum blend
percentage and used as an alternative fuel in a single cylinder,
four stroke, direct injection(DI) diesel engine. Although the
engine was able to run with the 40LFPO blend, the ignition
delay for the 40LFPO blend was found to be longer than that of
diesel operation in the entire load spectrum. In this study, the
effect of adding small quantities of an ignition improver with the
40LFPO on the performance and emissions of a single cylinder,
four stroke, air cooled, direct injection (DI) diesel engine
developing power of a 4.4kW at a rated speed of 1500rpm was
studied. For this purpose, Diethyl ether, an ignition improver
(DEE) in small quantities from 1-4% on volume basis was
blended with the 40LFPO accordingly. The blends were denoted
as X1, X2, X3 and X4 where X indicates the mixture of 40LFPO
and DEE and the numeric value indicates the percentage of DEE
in it. The results of the performance and emissions of the engine
run on different DEE blends and compared with those of diesel
operation presented in this paper.
Index Terms—Diesel engine, diethyl ether, emissions, light
fraction pyrolysis oil, performance
The authors are with the National Institute of Technology, Rourkela,
Odisha, India (e-mail: murugans@nitrkl.ac.in, kapura07.09@gmail.com,
murugans@nitrkl.ac.in).
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Cite:S. Murugan, Kapura Tudu, and S. K. Patel, "Performance and Emission Studies of a Naturally Aspirated Diesel Engine," Journal of Clean Energy Technologies vol. 5, no. 5, pp. 359-365, 2017.