Chapter 16, Problem 16A.6AE

Interpretation Introduction

Interpretation:

The rate of heat transfer by conduction from the warm room to the cold exterior through a window of area $1.0{\text{m}}^2$ has to be calculated.  Also, if the same temperature is assumed for the inside and the outside of the glass pane, then the required power of heater has to be calculated.

Concept introduction:

Energy flux is described as the quantity which measures the rate of energy transfer through unit area surface.  The flux of energy arising from a temperature gradient is calculated by the formula shown below.

    $J=-\kappa \frac{\text{d}T}{\text{d}z}$