Q1) A 20-cm-square plate loses heat with rate of 5000 W/m². Air at 1 atm and 300 K flows across the lower surface of the plate at a free-stream velocity of 20 m/s. The lower surface of the plate has a uniform temperature of 350 K. Water flows across the upper surface of the plate. The temperature difference between the surface and free stream velocity of water is 10°C. Find the velocity of water when the properties of water are Pr = 4.929 , k = 0.6107 %3D %3D W/m °C and v= 7.239x10-7 m²/s.

Q1) A 20-cm-square plate loses heat with rate of 5000 W/m². Air at 1 atm and 300 K flows across the lower surface of the plate at a free-stream velocity of 20 m/s. The lower surface of the plate has a uniform temperature of 350 K. Water flows across the upper surface of the plate. The temperature difference between the surface and free stream velocity of water is 10°C. Find the velocity of water when the properties of water are Pr = 4.929 , k = 0.6107 %3D %3D W/m °C and v= 7.239x10-7 m²/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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.27P

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