Calculate thermal resistance from thermal conductivity
Answers
Answer:
-value – Thermal Conductivity
Thermal conductivity is the time rate of steady state heat flow through a unit area of a homogeneous material induced by a unit temperature gradient in a direction perpendicular to that unit area, W/m⋅K.
(1)
Where,
L – Thickness of the specimen (m)
T – Temperature (K)
q – Heat flow rate (W/m2)
R-value – Thermal Resistance
Thermal resistance is the temperature difference, at steady state, between two defined surfaces of a material or construction that induces a unit heat flow rate through a unit area, K⋅m2/W. According to this definition and Equation 1, Equation 2, therefore, can be obtained.
As indicated in Equation 2, the value of the thermal resistance can be determined by dividing the thickness with thermal conductivity of the specimen.
(2)
Answer:
As indicated in Equation 2, the value of the thermal resistance can be determined by dividing the thickness with thermal conductivity of the specimen.