Abstract Chemical and thermal analyses were carried out on degummed and filtered (5 µm) rapeseed oil (referred to as SRO, i.e., semirefined rapeseed oil) to determine its suitability as a diesel fuel extender. The upper rate for inclusion of SRO with diesel fuel is 25%. This fuel blend had a phosphorus level of 2.5 ppm, which was comparable to rape methyl esters (1.0 ppm phosphorus). Thermogravimetric analyses were used to estimate the cetane ratings of the fuels. A 25% SRO/diesel blend had an estimated cetane index of 32.4 compared to 38.1 for diesel fuel only. Differential scanning calorimetry and thermogravimetric analyses were used to compare the volatility ranges of the fuels. SRO needed higher temperatures for volatilization (i.e., 70–260°C for diesel fuel vs. 280–520°C for SRO). This indicated poorer cold-starting performance of SRO compared with diesel fuel. SRO fuel is a low-sulfur, high-oxygen fuel giving SRO a more favorable emissions profile than pure diesel fuel.
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chandrapranil (1087) 2010-07-10 16:50
I really like the addition of the broken fence in the front and its amazing to see this yellow field as far as the eyes could see.
Thank you for sharing
janneman (3100) 2010-07-11 1:20
What a lush green and yellow vegetation in these hot summer days (here for over a week 30+ degrees).
The broken fence in the foreground is perfect!
clic (18542) 2010-07-13 13:54
A breach in the fence that invites to further exploration of fresher scents than diesel fuel, in this tribute to researchers who make efforts to save the planet!
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