Effect of advanced injection timing on emission characteristics of a diesel engine running on biofuel

In recent years, the issue of environmental pollution has been a cause of great concern world-wide. Researchers have shown that combustion of fossil fuel is a major cause of increasing carbon dioxide (CO 2 ) content of the atmosphere, with the consequence of global warming. Flood and land slide disa...

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Bibliographic Details
Published inInternational journal of ambient energy Vol. 25; no. 3; pp. 115 - 122
Main Author Nwafor, O. M. I.
Format Journal Article
LanguageEnglish
Published Lutterworth Taylor & Francis Group 01.07.2004
Ambient Press
Subjects
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heating, air conditioning and ventilation
Energy source
Hydrocarbon
Carbon dioxide
Fossil fuel
Fuel consumption
Combustion
Carbon monoxide
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Summary:In recent years, the issue of environmental pollution has been a cause of great concern world-wide. Researchers have shown that combustion of fossil fuel is a major cause of increasing carbon dioxide (CO 2 ) content of the atmosphere, with the consequence of global warming. Flood and land slide disasters resulting in loss of lives and properties are also linked to increases in ambient temperature. Research efforts have been geared towards identifying greener alternative energy sources for internal combustion (IC) engines. Biofuels appear more attractive as they absorb CO 2 while growing thus neutralising CO 2 emissions from combustion. The test results indicate that vegetable oils exhibit longer ignition delay with slow diffusion combustion stage, though advanced injection timing is expected to compensate in part for these problems. This work investigates the effect of advanced injection timing on emission characteristics of an unmodified diesel engine running on vegetable oil fuel. The test results show that the lowest carbon monoxide (CO) and CO 2 emissions were obtained with the advanced injection unit. The hydrocarbon (HC) emissions of the engine running on vegetable oil fuels were significantly reduced compared to the test results on baseline diesel fuel. The advanced injection system showed a slight increase in fuel consumption. The exhaust temperatures were high and delay period was reduced with the advanced injection unit.
ISSN:0143-0750
2162-8246
DOI:10.1080/01430750.2004.9674950