A hot isothermal surface is to be cooled by attaching an array of parallel, equally spaced vertical square plates, side length =399 mm, AT between hot surface and surrounding air is 81°C and the film temp = 50 °C, Air properties (k = 0.02735 W/m.K, a =2.487E-5 m¯/s, v=1.798E-5 m /s, Pr = 0.7228). What is the plate spacing (mm) that maximizes heat transfer from the array? %3D %3D %3D Select bne: О А.8.73 B. 7.92 О с. 7.00 O D. 10.29 O E. 9.57

A hot isothermal surface is to be cooled by attaching an array of parallel, equally spaced vertical square plates, side length =399 mm, AT between hot surface and surrounding air is 81°C and the film temp = 50 °C, Air properties (k = 0.02735 W/m.K, a =2.487E-5 m¯/s, v=1.798E-5 m /s, Pr = 0.7228). What is the plate spacing (mm) that maximizes heat transfer from the array? %3D %3D %3D Select bne: О А.8.73 B. 7.92 О с. 7.00 O D. 10.29 O E. 9.57

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 7.13P

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