Vaporization temperature. Probably the wrong terminology. What I was referring to is the point at which diesel begins to readily evaporate. Sep 29, 9. What confuses me is this: My understanding is that all liquids are constantly vaporizing, although some incredibly slowly, and the hotter they get, the faster they vaporize.
So the idea of having a particular temperature that would be called the vaporization temperature sounded a little odd to me. I thought maybe there was some way that it was defined that I didn't know about and was just interested to know what that might be. MikePA - Thanks for your answer. I believe that boiling point is usually defined as the temperature at which the vapor pressure of the liquid equals atmospheric pressure.
Anyway, I'm being guilty of hijacking the thread, and prolonging a discussion that doesn't have much to do with tractors. Thanks to all who responded. With all respect. Sep 29, I wouldn't see how you're hijacking the thread, since it's title is, after all, Diesel fuel evaporation. You're right about liquids vaporizing all the time as a function of temperature.
Obviously that is the case or we wouldn't be able to smell diesel at normal temps and pressures for humans. Not that the lack of odor proves something is NOT evaporating, but the presence of an odor, I think, proves that it is.
But there is something special about diesel and F. I can't find anything to support this, but, from fuel hauling days, we were required to do vapor recovery when filling gasoline tanks, but not when filling diesel tanks.
The air in a diesel tank was considered to be 'air' and not vaporized diesel. I wouldn't want to make a habit of breathing it regularly, but it must have been considered non-flammable and non-polluting or the EPA and OSHA would have been all over it. You must log in or register to reply here. Log in. For a better experience, please enable JavaScript in your browser before proceeding.
Evaporation and escape rate of diesel from MkIV tank? Thread starter logos Start date Nov 6, Previous car: Golf, 5spd. Hello all, My car use is very low, and it's gotten to the point where I fill up maybe once every 2 months my last four fillups were April, June, August and October Sometimes I top off a tank that isn't anywhere near empty just to try and keep the seasonal formula of the fuel correct.
Recently I started wondering whether I need to worry about fuel evaporation. I found this plot in a paper in the Journal of Petroleum Science Research:.
You are seriously worried about this? Get your head out of the sand. Worried would be an overstatement. I'm curious. I heat my home with oil in the northeast. My oil tank does not deplete itself over the summer, and the fuel is good in the fall when the burner lights off again. Diesel is the same as home heating oil..
With the mostly sealed fuel system in most cars, I'd guess that you might see something in the neighborhood of ounces per month in the summer. Gasoline would be slightly higher but again not enough to be a concern. For comparison, my GMC canyon sits for most of the time. During the diesel oil evaporation, the compositions of those less than 15 carbon atoms has affected, mainly those less than 13 carbon atoms compositions. And the results presented that the evaporation behavior of different composition of diesel oil varied with different composition.
The influences of soil type and air porosity on evaporation behavior of diesel oil in unsaturated soil were studied in this paper. During the diesel oil evaporation in thin layer soils 5 mm thick , the soil type was the dominant factor; while during volatilization in soil columns mm thick , the air porosity was the dominant factor.
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