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Oil heat capacity
2

Oil heat capacity

Oil heat capacity

(OP)
Does anyone know the name/author of this correlation for heat capacity of an oil?

cp = (1.63 + 0.0034*T) * SG ^ (-0.5)

cp in J/kg.ºC
T in ºC
SG - Specific gravity

Where is it referenced?

Thank you.
AndreChE

RE: Oil heat capacity

2
One small correction: Cp is in kJ/(kg.oC) not J/....
A clarification: specific gravity in this case refers to the ratio of the mass of a given volume of oil to the mass of an equal volume of water, both taken at 60oF.

The above formula appears in Engineering Tribology by Stachowiak and Batchelor, as Vol. 24 of Elsevier's Tribology Series. The formula is said to give a rough estimation of Cp values. They quote it from A. Cameron, Basic Lubrication Theory, Ellis Horwood Limited, 1981.

RE: Oil heat capacity

(OP)
Sorry, I know that is kJ//kg.ºC)....

In which issue of Elsevier Vol.24 is this correlation stated?

Thank you
AndreChE

RE: Oil heat capacity

1993.

ISBN 0 444 89235 4

formula 2.21 .

Good luck.

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