Hot air at 80°C is blown over a 2m x 4m flat surface at 30°C. If the average convection heat transfer coefficient is 55 W/m2 °C, determine the rate of heat transfer from the air to the plate, in kW.

Hot air at 80°C is blown over a 2m x 4m flat surface at 30°C. If the average convection heat transfer coefficient is 55 W/m2 °C, determine the rate of heat transfer from the air to the plate, in kW.

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.19P: 1.19 A cryogenic fluid is stored in a 0.3-m-diameter spherical container is still air. If the...

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Question

Hot air at 80°C is blown over a 2m x 4m flat surface at 30°C. If the average convection heat transfer coefficient is
55 W/m2 °C, determine the rate of heat transfer from the air to the plate, in kW.
OA. 32.93 kW
OB. 26.50 kW
OC. 22.88 kW
O D. 17.96 kW
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