5- Air flows at 120 C in a thin-wall stainless-steel tube with h=65 W/m2.•C. The inside diameter of the tube is 2.5 cm and the wall thickness is 0.4 mm. k =18 W/m• steel. The tube is exposed to an environment with h=6.5 W/m2.•C and TO =15 C. Calculate the overall heat-transfer coefficient and the heat loss per meter of length. What thickness of an insulation having k =40 mW/m • loss by 90 percent?. Answ(q=220W) °C for the °C should be added to reduce the heat

5- Air flows at 120 C in a thin-wall stainless-steel tube with h=65 W/m2.•C. The inside diameter of the tube is 2.5 cm and the wall thickness is 0.4 mm. k =18 W/m• steel. The tube is exposed to an environment with h=6.5 W/m2.•C and TO =15 C. Calculate the overall heat-transfer coefficient and the heat loss per meter of length. What thickness of an insulation having k =40 mW/m • loss by 90 percent?. Answ(q=220W) °C for the °C should be added to reduce the heat

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

i need the answer quickly

5- Air flows at 120•C in a thin-wall stainless-steel tube with h=65 W/m2. C. The inside
diameter of the tube is 2.5 cm and the wall thickness is 0.4 mm. k =18 W/m• •C for the
steel. The tube is exposed to an environment with h=6.5 W/m2. C and TO =15 C.
Calculate the overall heat-transfer coefficient and the heat loss per meter of length. What
thickness of an insulation having k =40 mW/m•
loss by 90 percent?. Answ(q=220W)
•C should be added to reduce the heat

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