Is there a useable formula to correlate temperature to fuel density particularly Jet-A ? I am aware of the Coefficient of Thermal Expansion value of 999 x 10E-6 (ie .00099) per Deg C but reluctant to use this as there may be other variables to consider... Trying to plan airplane fuel requirements in gallons since most flight planning systems work in pounds.
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JET-A Density - Temperature relationship 1
- Thread starter tesh76
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i'd've thought the the denisty/temperature relationship was reasonably linear over the practical range (plus/minus 40degC).
i'm guessing that your coefficient is for volume change and that it is independent of the volume unit, ie .00999 gallons/gallon/degC
i'm guessing that your coefficient is for volume change and that it is independent of the volume unit, ie .00999 gallons/gallon/degC
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1
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The attached file has the thermal expansion plots for all sorts of fuels and at temps from -60F to +160F. They all are linear over this range of temps. It also has the cover page in case you need to give a refernece.
FYI, from what I understand these handbooks are available at a reasonable cost. How much and where from, I don't know as my previous employer bought them. But, they've got all sorts of conversion tables, physical properties, aircraft performance, engine performance, etc. data.
FYI, from what I understand these handbooks are available at a reasonable cost. How much and where from, I don't know as my previous employer bought them. But, they've got all sorts of conversion tables, physical properties, aircraft performance, engine performance, etc. data.
thruthefence
Aerospace
Wil, I've got a copy ('71, a little shop worn ) that I would give you, but I don't know how without violating the rules of the board. Maybe post it on Ebay with a cheap "buy it now"?
Mr. Taylor-
The following link advertises them as part of a training course. You might be able to contact them and get a copy. $50 is a bit pricey though. I used to work for a UTC company (Sikorsky). I will check with my old cronies about getting a copy.
Blessings
The following link advertises them as part of a training course. You might be able to contact them and get a copy. $50 is a bit pricey though. I used to work for a UTC company (Sikorsky). I will check with my old cronies about getting a copy.
Blessings
For now I'll have to settle for my '57 GE Aircraft Propulsion [vestpocket size] Data Book and my '65 TRW Space Data booklet. I surely preferred the P&W engines to the GE's, but I never got a Vestpocket Handbook. If somebody finds a commercial source of the P&W handbooks, I would really like to acquire one.
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