Question

Which of the following is the correct relation between thermal transmittance and thermal time constant?

(a) T = Q x U

(b) T = k/U

(c) T = Q/U

(d) T = U/Q

This question was posed to me in class test.

I'm obligated to ask this question of Thermal Insulation topic in portion Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Answer 1

The correct answer is:

(b) T = k / U

In thermal insulation, the thermal time constant $T$ is typically related to thermal transmittance $U$ by the factor $k$, where $T=k/U$. This relationship helps define the rate at which a material responds to temperature changes.