24.53 For fluid flow over a surface, the heat flux to the surface can be computed as dT J = -k- dy where J = heat flux (W/m), k = thermal conductivity (W/m K), T = temperature (K), and y distance normal to the surface (m). The following measurements are made for air flowing over a flat plate that is 200 cm long and 50 cm wide: У, ст 1 T, K 900 480 270 200 If k = 0.028 J/s m K, (a) determine the flux at the surface and (b) the heat transfer in watts. Note that 1 J = 1 W s.
24.53 For fluid flow over a surface, the heat flux to the surface can be computed as dT J = -k- dy where J = heat flux (W/m), k = thermal conductivity (W/m K), T = temperature (K), and y distance normal to the surface (m). The following measurements are made for air flowing over a flat plate that is 200 cm long and 50 cm wide: У, ст 1 T, K 900 480 270 200 If k = 0.028 J/s m K, (a) determine the flux at the surface and (b) the heat transfer in watts. Note that 1 J = 1 W s.
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.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.47P
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