Thermal Conductance vs Thermal Resistance

The ability of a material to resist heat flow increases with its thermal resistance. A heat flow meter can be used to directly measure a material’s thermal resistance. Moreover, the material’s thermal conductivity can be estimated if the thickness of the material is known. Similar to this, if you are aware of a material’s thermal conductivity, you can estimate its thermal resistance without first using a heat flow meter to measure it.

• Thermal Resistance to Thermal Conductivity

k = LR

• Thermal Conductivity to Thermal Resistance

R = Lk

Where,

k – Thermal conductivity

L – Thickness of the material

R – Thermal resistance