Heat Transfer Convection heat transfer 7- Air at 1 atm and 27 C blows across a large concrete surface 15 m wide and unit length maintained at 55 C. The flow velocity is 4.5 m/s. Calculate Reynold number and the convection heat loss from the surface. V = 17.94 x 10-6 k = 0.0273 Pr = 0.7 Nu, = 2604.39 Answers: ReL = 3.76 x 106 and q = 3980w
Heat Transfer Convection heat transfer 7- Air at 1 atm and 27 C blows across a large concrete surface 15 m wide and unit length maintained at 55 C. The flow velocity is 4.5 m/s. Calculate Reynold number and the convection heat loss from the surface. V = 17.94 x 10-6 k = 0.0273 Pr = 0.7 Nu, = 2604.39 Answers: ReL = 3.76 x 106 and q = 3980w
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.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.52P
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Question
![Heat Transfer
Convection heat transfer
7- Air at 1 atm and 27 C blows across a large concrete surface 15 m wide
and unit length maintained at 55•C. The flow velocity is 4.5 m/s. Calculate
Reynold number and the convection heat loss from the surface.
V = 17.94 x 106
k = 0.0273
Pr = 0.7
Nu, = 2604.39
Answers:
Re =
3.76 x 106 and q = 3980W
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Transcribed Image Text:Heat Transfer
Convection heat transfer
7- Air at 1 atm and 27 C blows across a large concrete surface 15 m wide
and unit length maintained at 55•C. The flow velocity is 4.5 m/s. Calculate
Reynold number and the convection heat loss from the surface.
V = 17.94 x 106
k = 0.0273
Pr = 0.7
Nu, = 2604.39
Answers:
Re =
3.76 x 106 and q = 3980W
%3D
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