Compressibility value of Jet A1 fuel 3

[HVAC68]

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

HVAC68

 

[monaco8774]

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.

 

[25362]

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 25^oC 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​

 

[BigInch]

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 )

 

[blackwed]

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

 

[BigInch]

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

 

[blackwed]