Question: 2 what is the purpose of using extended surface or...
2. What is the purpose of using extended surface or fin? Give two real life examples of the use of extended surfaces.
3. The heat flux q is 6000 W/m2 at the surface of an electric heater. The heater temperature is 120ºC when it is cooled by air at 70ºC. What is the average convective heat transfer coefficient h ? What will be the heater temperature be if the power is reduced so