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Air thermal k at low pressure

Air thermal k at low pressure

Air thermal k at low pressure

(OP)
Can anyone give me some leads or information on the thermal conductivity of air as a function of pressure for sub-atmospheric conditions?  
All help appreciated!
Jack

Jack M. Kleinfeld, P.E.  Kleinfeld Technical Services, Inc.
Infrared Thermography, Finite Element Analysis, Process Engineering
www.KleinfeldTechnical.com

RE: Air thermal k at low pressure

See 10.12 of "The Properties of Gases and Liquids" by
Prausnitz and others, fifth edition.

RE: Air thermal k at low pressure

(OP)
Thanks for the suggestion.  I will have to get to a library, the only Prausnitz I have is on phase equilibria.  I think I used one edition of the book you suggested for a course about 25 years ago, but borrowed it from the library at my job at the time.  

Jack

Jack M. Kleinfeld, P.E.  Kleinfeld Technical Services, Inc.
Infrared Thermography, Finite Element Analysis, Process Engineering
www.KleinfeldTechnical.com

RE: Air thermal k at low pressure

I haven't seen those tables however remembered that absolute (dynamic) viscosity, thermal conductivity, heat capacity and the Pr number don't change much over a wide pressure range. I have seen a copy of seven listed air physical properties at atmospheric pressures by The National Bureau of Standards (US) Circ. 564 (1955) between 100 K and 2500 K.

RE: Air thermal k at low pressure

Here's another library reference (earlier edn. of one above?):

The properties of gases and liquids: their estimation and correlation, 2d edn., Robert C. Reid & Thomas K. Sherwood, 646 pages,  New York, McGraw-Hill [1966].
L. of C. no. TP 242.R4 1966

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