patrick_g
Elite Member
RobJ said:Maybe they'll deliver that 30 gallons in a Honda Prius, with 6x5 gallon jugs!
Oh, by the way... Prius is built in Japan by Toyota which is (last time I checked) not part of Honda Motors.
Pat
Brother n' law says off road diesel is bad
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Oh, by the way... Prius is built in Japan by Toyota which is (last time I checked) not part of Honda Motors.
Pat
DreaminGreen
Silver Member
Here is a link to a video about off road diesel. Also a lot of other info on the site too. Dennis K. Burke, Inc. - Media Clips
Kaliburz
Gold Member
DreaminGreen said:
Can anyone summarize the vid. link? I'm on dialup so......
Roto said:
Cetane? You serious?
defined:
Cetane number - Wikipedia, the free encyclopedia
SkyPup
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Roto said:
It is the opposite of octane.
well the guy in the video didnt say much but the time frame for which diesel was going to Ultra low sulfer which has already happened and he mentioned make sure the cetane level is good and not to worry about the sulfer.
Mike
Mike
patrick_g
Elite Member
Roto said:
You cruel beasts. Tell the nice man all about atane, betane, cetane, etc. and how it figures into diesel engine performance.
Pat
gemini5362
Veteran Member
Cetane number or CN is a measure of the combustion quality of diesel fuel during compression ignition. It is a significant expression of diesel fuel quality among a number of other measurements that determine overall diesel fuel quality. Cetane number of a fuel is defined as the percentage by volume of normal cetane in a mixture of normal cetane and alpha-methyl naphthalene which has the same ignition characteristics (ignition delay) as the test fuel when combustion is carried out in a standard engine under specified operating conditions.
Cetane number is actually a measure of a fuel's ignition delay; the time period between the start of injection and start of combustion (ignition) of the fuel. In a particular diesel engine, higher cetane fuels will have shorter ignition delay periods than lower cetane fuels. Cetane numbers are only used for the relatively light distillate diesel oils. For heavy (residual) fuel oil two other scales are used CCAI and CII.
Generally, diesel engines run well with a CN from 40 to 55. Fuels with higher cetane number which have shorter ignition delays provide more time for the fuel combustion process to be completed. Hence, higher speed diesels operate more effectively with higher cetane number fuels. There is no performance or emission advantage when the CN is raised past approximately 55; after this point, the fuel's performance hits a plateau. In North America, diesel at the pump can be found in two CN ranges: 40-46 for regular diesel, and 45-50 for premium. Premium diesel may have additives to improve CN and lubricity, detergents to clean the fuel injectors and minimize carbon deposits, water dispersants, and other additives depending on geographical and seasonal needs.
In Europe, diesel cetane numbers were set at a minimum of 49 in 1994 and 51 in 2000.
Dimethyl ether may prove advantageous as a future diesel fuel as it has a high cetane rating (55) and can be produced as a biofuel
Cetane number is actually a measure of a fuel's ignition delay; the time period between the start of injection and start of combustion (ignition) of the fuel. In a particular diesel engine, higher cetane fuels will have shorter ignition delay periods than lower cetane fuels. Cetane numbers are only used for the relatively light distillate diesel oils. For heavy (residual) fuel oil two other scales are used CCAI and CII.
Generally, diesel engines run well with a CN from 40 to 55. Fuels with higher cetane number which have shorter ignition delays provide more time for the fuel combustion process to be completed. Hence, higher speed diesels operate more effectively with higher cetane number fuels. There is no performance or emission advantage when the CN is raised past approximately 55; after this point, the fuel's performance hits a plateau. In North America, diesel at the pump can be found in two CN ranges: 40-46 for regular diesel, and 45-50 for premium. Premium diesel may have additives to improve CN and lubricity, detergents to clean the fuel injectors and minimize carbon deposits, water dispersants, and other additives depending on geographical and seasonal needs.
In Europe, diesel cetane numbers were set at a minimum of 49 in 1994 and 51 in 2000.
Dimethyl ether may prove advantageous as a future diesel fuel as it has a high cetane rating (55) and can be produced as a biofuel
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