Abstract
A light commercial road vehicle fitted with a heated fuel line and tank was run on cold pressed and filtered camelina sativa seed oil and unheated mineral diesel fuel. It was found that the seed oil produced a maximum power at the road wheels of 43.25 kW and returned 12.57 km/l compared to 38.50 kW and 14.03 km/l for the mineral fuel. At an engine speed > 2000 rpm and high loading, both smoke opacity and CO emitted from the exhaust was found to be approximately 50% lower with the seed oil than with the mineral fuel, however, NO was higher for the seed oil by almost 6% at engine speeds > 3500 rpm, but similar < 3500 rpm. The CO2 and O2 emissions were similar and NO2 emitted was negligible for both fuels. The effect of heating at 170 °C on the camelina sativa seed oil was investigated and a significant increase in viscosity was observed which coincided with a reduction in the iodine value of the oil.
Original language | English |
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Pages (from-to) | 191-197 |
Number of pages | 7 |
Journal | Industrial Crops and Products |
Volume | 17 |
Issue number | 3 |
DOIs | |
Publication status | Published - May 2003 |
Keywords
- Biofuel
- Camelina seed oil
- Emissions
- Fuel
- Thermal oxidation
- Tractive power
- Transport fuel