Browse Publications Technical Papers 2011-01-1939
2011-08-30

Effect of Fuel Properties of Biodiesel on Its Combustion and Emission Characteristics 2011-01-1939

The use of biofuel is essential for the reduction of greenhouse gas emission. This paper highlights the use of biodiesel as a means of reducing greenhouse gas emission from the diesel engine of heavy-duty vehicles. Biodiesel is fatty acid methyl ester (FAME) obtained through ester exchange reaction by adding methanol to oil, such as rapeseed oil, soybean oil, palm oil, etc. The CO₂ emission from combustion of biodiesel is defined to be equivalent to the CO₂ volume absorbed by its raw materials or plants in their course of growth. On the other hand, however, biodiesel is known to increase the NOx emission when compared with operating with conventional diesel fuel, then suppressing this increase is regarded as a critical issue.
This study is intended to identify the fuel properties of biodiesel free from increase in the NOx emission. For this purpose, multiple kinds of biodiesel differing in fuel properties were used with the single-cylinder diesel engine, so that the effects of the difference in fuel properties on combustion and exhaust gas characteristics were clarified.

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