Thermal contact resistance - Interface to Soil

[swguru]

I am looking for a reference that provides data on thermal contact resistance (C-m^2/W) for metal to soil interface. In my application I have an enclosure that dissipates several Watts and is buried in soil. I am aware that that values will depend highly on moisture contact and density of soil in contact with the enclosure. I can calculate this value, however there are uncertainties about estimating voids and contact area with the enclosure.

 

[25362]

The following threads and the links therein may be of help:

thread391-143589​

thread507-119895​

 

[swguru]

In review of these past threads, I did not see reference to thermal contact resitance.