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Oil thermal conductivity

thread483-97050

Oil thermal conductivity

Oil thermal conductivity

(OP)
Hello everybody

Does anyone know any correlation(s) to calculate the thermal conductivity of an oil?

I have the ASTM D86 distillation curve of it.

Thank you
Regards,

AndreChE

RE: Oil thermal conductivity

It varies linearly with temperature and is affected by polarity and hydrogen bonding of the molecules.
The th. conductivity, K, of most mineral and synthetic hydrocarbon lubes is in the range between 0.14 W/(m.K) at 0 deg C to 0.11 W/(m.K) at 400 deg C.

For a rough estimation one can use:

K = (0.12/s) (1-1.667 θ/10,000)

where s, specific gravity at 60 deg F; θ is the temperature in deg C.

RE: Oil thermal conductivity

(OP)
What is the reference of this correlation?

Thanks

AndreChE

RE: Oil thermal conductivity

Engineering Tribology by Stachowiak and Batchelor- ELSEVIER 1993

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