Width, height, thickness and thermal conductivity of a single pane window and the air space of a double pane window. Representative winter surface temperatures of single pane and air space. FIND: Heat loss through single and double pane windows.

Complete Question

The schematics is shown on the first uploaded image

For single pane is    

For  double pane is  

Explanation:

Generally the heat loss through  a single pane is mathematically represented by  Fourier’s law as

=>    

=>            

Generally the heat loss through  a double pane is mathematically represented by  Fourier’s law as

=>    

=>      

measure their densities same density, same sub