4. Consider steady, one-dimensional heat flow through two plane walls which are exposed to convection on both sides as seen in figure below. Sketch the temperature distribution from the out- side through the inside of plane wall. insulation k, = 0.07 W/m K Inside outside T= -20°C T= 25°C h, = 12 W/m? K h, = 8 W/m? K 3 mm plastic Kp= 1 W/m K 1 mm Stainless steel, k, = 16W/m K

4. Consider steady, one-dimensional heat flow through two plane walls which are exposed to convection on both sides as seen in figure below. Sketch the temperature distribution from the out- side through the inside of plane wall. insulation k, = 0.07 W/m K Inside outside T= -20°C T= 25°C h, = 12 W/m? K h, = 8 W/m? K 3 mm plastic Kp= 1 W/m K 1 mm Stainless steel, k, = 16W/m K

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.36P

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