A solid concrete wall 4.0 m by 2.4 m and 30 cm thick, with a thermal conductivity of 1.3 W/(m∙K), separates a basement at 18°C from the ground outside at 6°C. How much heat flows through the wall in one hour?

Question

Quizplus · Accepted Answer

The heat flow through the wall can be calculated using the formula Q = (k * A * ΔT * t) / d, where k is the thermal conductivity, A is the area, ΔT is the temperature difference, t is the time, and d is the thickness. Substituting the given values, the heat flow is approximately 1.8 MJ.

A Solid Concrete Wall 4