S T very long conduit of inner circular cros thermal

Last updated: 6/13/2023

S T very long conduit of inner circular cros thermal conductivity of 1 W m K passes a hot fluid which maintains the inner surface at T 50 C The outer surfaces of square cross section are insulated or maintained at a uniform temperature of T 20 C depending on the application Find the shape factor and the heat rate for each case T 1 40 mm T 120 mm T T 2 T2 T