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Compressibility value of Jet A1 fuel
3

Compressibility value of Jet A1 fuel

Compressibility value of Jet A1 fuel

(OP)
I would like to know the compressibility value of Jet A1 fuel.  Can somebody help please.

HVAC68

RE: Compressibility value of Jet A1 fuel

Although I cant tell you the value for Jet A1, I had to find the value for diesel many years ago and I contacted Exxon directly, they had a marketing centre in London that put me in touch with a lab, they had all the values for all their fuels and lubricants although it wasnt a standard test. A quick check for any fuel supplier on the web might get you a contact as I have lost mine now.

RE: Compressibility value of Jet A1 fuel


I agree with monaco8774, the best source for data is the kerosine supplier itself.

To have an idea of the values and assuming it to be a mixture of hydrocarbons centering at C10-C12, the figures for isothermal liquid compressibility -(1/V)(∂ V/∂ P) at 25oC for n-paraffins given by the CRC manual in 1/MPa, are:

C9   11.75 × 10-4
C10  10.94 × 10-4
C11  10.31 × 10-4
C12    9.88 × 10-4
C13    9.48 × 10-4

RE: Compressibility value of Jet A1 fuel

2
This one works quite well.  It calculates E, the bulk modulus for hydrocarbon liquids.  To get "compressibility" divide 1 by E.

E = 100000* exp(1.9947 - 0.00013427 * TempF - 0.79392/SG^2 -0.002326* TempF/SG^2 )

RE: Compressibility value of Jet A1 fuel

Per API's latest MPMS, the volumetric correction factor for effects of pressure on liquid (CPL):

CPL=1/(1-(10^-5*Fp*P))
Fp=exp(-1.9947+.00013427*TempF+(793920+2326*TempF)/SG^2)
P=psig
SG=specific gravity at 60 deg F
DB

RE: Compressibility value of Jet A1 fuel

Hey!  That's the same formula for bulk modulus, except its not multiplied by 100000.

RE: Compressibility value of Jet A1 fuel

:)

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