Affiliation:
1. Karabuk University, Engineering Faculty, Department of Automotive, Karabuk, Turkey
2. Karabuk University, Institute of Applied Science, Karabuk, Turkey
Abstract
In this study, the optimum blend rate and injection pressure in a
four-stroke, single cylinder, direct injection diesel engine using soybean
methyl ester were investigated experimentally. The tests were conducted at
two stages. Firstly, the engine was tested with diesel fuel, B25 (25%
biodiesel+75% diesel fuel), B50, B75 and B100 fuels at full load and at a
constant speed. According to the test results, it was determined that the
most suitable fuel was B25 in terms of performance and emission. Secondly,
the engine was tested at different loads with diesel fuel at original
injection pressure and with B25 at different injection pressures (160, 180,
200, 220, 240 bar) for comparison. It was determined from tests performed
with B25 that the most suitable injection pressure in terms of performance
and emissions was 220 bar. The specific fuel consumption and power values of
the B25 were found to be nearly the same as those of diesel fuel at 220 bar
injection pressure. In addition, HC, CO, and smoke emissions were reduced by
about 33%, 9% and 20%, respectively. On the other hand, NOx emission
increased by about 12%.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
10 articles.
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