Question: a cylindrical electrical cartridge heater of 31 cm diameter and...
A cylindrical electrical cartridge heater of 3.1 cm diameter and 4 cm length is drawing electrical power at a fixed rate. Its temperature is 41 °C after reaching steady-state in a lab under normal ambient conditions.
a. If the heat flux from all of the cylinder's surfaces (including both ends but neglecting any effects of conduction through the electrical leads) is an average of 29 W/m2, what is the heat rate, in W, from the cartridge heater under steady-state conditions in the ambient air?