Effects of biodiesel fuel temperature on performance and emissions of a compression ignition (CI) engine
Diesel engines are still widely needed and applicable to light duty passenger car and heavy duty vehicles. In recent years, limited supply of fossil fuel makes alternative sources of fuel especially biodiesel receiving a lot of attention in the automotive industry. However, in using biodiesel as...
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| Format: | Thesis |
| Language: | English English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6721/1/24p%20NORRIZAL%20MUSTAFFA.pdf http://eprints.uthm.edu.my/6721/2/NORRIZAL%20MUSTAFFA%20WATERMARK.pdf |
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| Summary: | Diesel engines are still widely needed and applicable to light duty passenger car and
heavy duty vehicles. In recent years, limited supply of fossil fuel makes alternative
sources of fuel especially biodiesel receiving a lot of attention in the automotive
industry. However, in using biodiesel as fuel had created poor fuel-air mixing that
generally will produce lower performance and higher emissions than diesel fuel. This
is associated with the fuel properties especially viscosity that higher compared to
diesel fuel. The aim of this present research was to investigate the effects of
preheated biodiesel based crude palm oil (B5, B10 and B15) at 40oC, 50oC and 60oC
on performance and emissions of diesel engine at three different load conditions,
which are 0% load, 50% load and 100% load. A four-cylinder four strokes cycle,
water cooled, direct injection engine was used for the experiments. The results
showed that the maximum performance produced was at 0% load condition with the
60oC of heating temperature by B10 where the torque, flywheel torque and brake
power increased by 11.55%, 11.42% and 4.16% respectively compared to diesel fuel.
While for the emissions, the preheat temperature results on the decrement of CO
emission for all load conditions and the maximum reduction recorded was 41.2%.
However, the increment of fuel temperature promotes to the higher NOx emissions
produced and the maximum increment recorded was 51.7%. |
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