You can’t directly measure the thermal conductivity or resistivity of a stony soil
Rocks typically have a much higher thermal conductivity than the soil around them. You can measure the thermal conductivity of the rocks and of the interstitial soil, but how do you combine them to get the conductivity or resistivity of the soil profile? If you average the two, you’ll end up with the wrong number, which could be catastrophic. In underground power cable applications, if you overestimate, you’re in danger of damaging the cable. If you underestimate, you’ll spend too much on your installation.
How to combine the conductivity of rock and soil to get the right value for the profile
In this 30-minute webinar, world-renowned soil physicist Dr. Gaylon Campbell teaches how to combine the conductivity of rock and soil to get the right thermal conductivity or thermal resistivity value for the soil profile. You’ll learn:
- How to both measure and model soil thermal conductivity
- How to measure the thermal conductivity of rocks
- How to combine those two measurements to get the right conductivity value for the entire soil profile