Answer to Question #323370 in Mechanical Engineering for Harsh

Question

A 0.8 m high, 1.5 m wide double pane window consists of two 4 mm

thick layers of glass (k=78 W/mK) and is separated by a 10 mm wide

stagnant air space (k=0.026W/mK). The room is at 20°C and the

outside air is at -10°C. The heat transfer coefficients are 10 and 40

W/m2K. find

i) The rate if heat transfer through the window

ii) The inside surface temperature

Answer 1

Answer is given below