Solve the below:
Q: A pipe carrying superheated steam in a basement at 10°C has a surface temperature of 150°C. Heat loss from the pipe occurs by radiation (e = 0.6) and natural convection [ hc = 25 W/(m2 K)]. Determine the percentage of the total heat loss by these two mechanisms.
GIVEN
Pipe in a basement
Pipe surface temperature (Ts) = 150°C = 423 K
Basement temperature (T?^?) = 10°C = 283 K
Pipe surface emissivity (e) = 0.6
Convective heat transfer coefficient ( hc ) = 25 W/(m2 K)
ASSUMPTIONS
The system is in steady state
The basement behaves as a blackbody enclosure at10°C
