Volumetric Expansion Coefficient
Volumetric Expansion Coefficient
(OP)
Where can I find volumetric expansion coefficients of Jet Fuel (170-250C ASTM D86 distillation, density = 0.80g/cm3) and Diesel Oil (210-355C distillation, density = 0.84 g/cm3)?
The question also goes for (average) specific heat (kJ/kg*C) values of these products.
I have found one value for Jet Fuel: vol. expansion coefficient of 0.00099/C. Is this OK?





RE: Volumetric Expansion Coefficient
RE: Volumetric Expansion Coefficient
This will let you calculate the density at any temperature.
JMW
www.viscoanalyser.com
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RE: Volumetric Expansion Coefficient
1. CTE values of mixtures would depend somewhat on the composition. For example, on % aromatics.
2. Temperature affects CTE. For example, values for toluene at 20 and at 50 deg C are 0.00105/oC and 0.00113/oC, respectively. For octane at 25 and 45 deg C, 0.00116/oC and 0.00123/oC. respectively.
3. By taking the mid BP and comparing with pure paraffinic hydrocarbons one can appreciate whether the estimated data are in the ballpark. For example, the jet fuel with a MBP of 210oC would correspond to a C11-C12 mix with 0.00097-0.00093/oC values at 25 deg C. Aromatics would tend to "adjust" the densities of the paraffinic hydrocarbons upwards.
4. Higher molecular weight paraffinic hydrocarbons would tend to have a bit lower CTE values. For example, at 25 deg C, C12=>C13=>C14 would show: 0.00093=>0.00090=>0.00087/oC, respectively.
I hope I didn't complicate the picture more than needed.
RE: Volumetric Expansion Coefficient
Your website's navigation buttons appear to only work for me along the bottom and top edges of each button. Has anyone else experienced this?
TTFN
RE: Volumetric Expansion Coefficient
JMW
www.viscoanalyser.com
Eng-Tips: Pro bono publico, by engineers, for engineers.
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Volumetric Expansion Coefficient
The formula for fractions boiling between 40oC and 480oC contains 20 constants !
If you can not get hold of this article, I could arrange it to be faxed to you (2 pages) upon receiving a fax number.
RE: Volumetric Expansion Coefficient
Thank You very much, 25362. I think I will manage to find OGJ in our library.
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