Journal
APPLIED ENERGY
Volume 88, Issue 5, Pages 1803-1812Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2010.12.007
Keywords
Biodiesel; In-cylinder gas temperature; Heat release rate; NOx emission
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Funding
- European Community
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This paper discusses the influence of biodiesel on the engine combustion characteristics. The considered fuel is neat biodiesel from rapeseed oil. The considered engine is a bus diesel engine with injection M system. The engine characteristics are obtained by experiments and numerical simulation. The results obtained with biodiesel are compared to those obtained with mineral diesel under various operating regimes. In this way, the influences of biodiesel usage on the injection pressure, injection timing, ignition delay, in-cylinder gas pressure and temperature, heat release rate, exhaust gas temperatures, harmful emissions, specific fuel consumption, and on engine power are analyzed. Furthermore, the relationships among fuel properties, injection and combustion characteristics, harmful emissions, and other engine performance are determined. Special attention is given to possible explanations of higher NO, emission in spite of lower in-cylinder gas temperature. (C) 2010 Elsevier Ltd. All rights reserved.
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