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

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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