A hot isothermal surface is to be cooled by attaching an array of parallel, equally spaced vertical square plates, side length =405 mm, AT between hot surface and surrounding air is 45°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). If the optimum spacing is 12 mm, what is the heat transfer rate (watts) from the 12-plates? 12 : number of plates. %3D Select one: A. 527.70 B. 469.65 C. 591.02 D. 638.52 E. 411.61
A hot isothermal surface is to be cooled by attaching an array of parallel, equally spaced vertical square plates, side length =405 mm, AT between hot surface and surrounding air is 45°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). If the optimum spacing is 12 mm, what is the heat transfer rate (watts) from the 12-plates? 12 : number of plates. %3D Select one: A. 527.70 B. 469.65 C. 591.02 D. 638.52 E. 411.61
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 1.21P: 1.21 In an experimental set up in a laboratory, a long cylinder with a 5-cm diameter, and an...
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