Heat transfer coefficient for soils
Heat transfer coefficient for soils
(OP)
What are the limit values for the coefficient of heat transfer for soils?
I am trying to calculate if have a forest fire (very dry native soil), how much is the soil temperature 2 ft. bellow surface?
Thanks
I am trying to calculate if have a forest fire (very dry native soil), how much is the soil temperature 2 ft. bellow surface?
Thanks





RE: Heat transfer coefficient for soils
Units below are in Btu, hr, ft, and lbm
Dusinberre G.M. Heat Transfer Calculations by Finite Differences International Textbook Company Scranton, PENN 1961
gives the following properties as typical above 8 ft of depth:
k = .21 Btu/hr-ft-F
density = 70 lbm/ft^3
cp = .2 Btu/lbm-F
alpha = .015 ft^2/hr
Schneider P.J. Conduction Heat Transfer Addison-Wesley Publishing Company Reading, MA 1955
Gives the following
k = ..325
density = 100
cp = .5
Good Luck
Don
dleffingwell@snet.net
RE: Heat transfer coefficient for soils
RE: Heat transfer coefficient for soils