4. Air at 25°C blows over a heated steel plate with its surface maintained at 200°C. The plate is 50 x 40 cm and 2.5 cm thick. The convective heat-transfer coefficient at the top surface is 20 W/(m2K). The thermal conductivity of steel is45 W/(m K). Calculate the heat loss per hour from the top surface of the plate.

4. Air at 25°C blows over a heated steel plate with its surface maintained at 200°C. The plate is 50 x 40 cm and 2.5 cm thick. The convective heat-transfer coefficient at the top surface is 20 W/(m2K). The thermal conductivity of steel is45 W/(m K). Calculate the heat loss per hour from the top surface of the plate.

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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