Steam flowing through a pipe that is covered with an insulating material that comprise of two different materials (A and B) as shown in Figure 2. If entire outer surface area is exposed to air for which h = 20 W/m2.K and T* = 300 K, Determine: a) Sketch the thermal circuit of the system. b) Total heat loss from the pipe. c) Ts.2(A) d) T5.2(B). (10 marks) (10 marks) (10 marks) (10 marks) 2 (Assume an infinite contact resistance in the interface between A and B, and the pipe wall temperature was uniform and maintained at T3,1 = 500 K, 11 = 10 mm, r2 = 50 mm, ka = 3 W/m.K, and kg = 0.5 W/m.K). T h TS.2(A) A 2 kB Steam TS.2B) B TS1 B Figure 2: steam flowing in a pipe