1. Engineering
  2. Mechanical Engineering
  3. any help is greatly appreciated thanks...

Question: any help is greatly appreciated thanks...

Question details

5- (30 pts) The outer surface of a 20-cm-thick wall in summer is at 44°C. The outer surface of the wall exchanges heat by radiation with surrounding at 40°C, and convection with ambient air also at 40°C with a convection heat transfer coefficient of 5 W/m*2-K. Solar radiation is incident on the surface at a rate of 150 W/m*2 (flux). If both the emissivity and the solar absorptivity of the outer surface are 0.8, determine the inside temperature of the wall. Use a conductivity of k-0.95 W/m K for the wall 150 W/m2 44°C air and surroundings, 40°C Tip: Write the energy balance for the outer surface

Any help is greatly appreciated.

Thanks.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution