Total Radiating Surface refers to that surface from which energy is radiating out where as total radiating energy is the total energy radiated per unit surface area.
What is the radiating surface of a pipe?
Total Radiating Surface of pipe = Curved surface area + 2 × Area of circular crossection. =2πrh+2πr2=2πr(h+r)=2×722×2.
What is radiating surface in a system?
So the total radiating surface in the system is nothing but the total surface area (T.S.A) of the cylindrical pipe. Now as we know that the T.S.A of the cylindrical pipe is the sum of curved surface area (C.S.A) and the area (AC) of two circular ends.
