I have the volumetric correction for gasoline listed as .00108 % per degree C/ .00060 % per degree F in my API manual. These are coefficients of expansion for a standard gasoline formulation compared to a standard volume of gasoline at a standard temperature of 15.5 degrees C/60 degrees F.
An example the formula would be (in SI units for the US members):
If a you have a cubic foot of gasoline at 60 degrees F, what would it's volume be at 70 degrees F?
60 + (the actual temp of the product X the coefficient of expansion) = A
so
60 + (70 X .00060) = A
60 + (.420) = A
A = 60.420
Then:
A x (.00060) = B
so
60.420 X .00060 = B
B = .0363
The new volume (D) = 1 + B
so
1 + .0363 = 1.0363
The new volume of a cubic foot of gasoline at 60 degrees F, if it was raised to 70 degrees F would be 1.0363 cubic feet.
If I've done the math right... always a question, for me...
so 3.6% change in volume per 10 degree swing.
[This message has been edited by silent chief (edited 09-08-2007).]
Always looking for Texaco Canada, Supertest, White Rose, McColl Frontenac, and Miller Oil Co. info.
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