A square pin fin (w=0.6 mm, L=33 mm) is attached to hot surface [87 mm * 69 mm] Ts= 176°C with convection heat transfer coefficient of (155= W/m K) and surrounding air at 24°C, if the fin efficiency is 0.81 and the center to center distance between any two successive fins = 1.5 mm. What is the overall thermal gesistance of the arrangement (m .K/W) ? Select one: A. 0.01193 B. 0.00996 C. 0.01095 D. 0.01379 E. 0.01281

A square pin fin (w=0.6 mm, L=33 mm) is attached to hot surface [87 mm * 69 mm] Ts= 176°C with convection heat transfer coefficient of (155= W/m K) and surrounding air at 24°C, if the fin efficiency is 0.81 and the center to center distance between any two successive fins = 1.5 mm. What is the overall thermal gesistance of the arrangement (m .K/W) ? Select one: A. 0.01193 B. 0.00996 C. 0.01095 D. 0.01379 E. 0.01281

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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A square pin fin (w=0.6 mm, L=33 mm) is attached to hot surface [87 mm * 69 mm] Ts= 172°C with convection heat transfer coefficient of (1383 W/m K) and surrounding air at 24°C, if the fin efficiency is 0.81 and the center to center distance between any two successive fins =1.5 mm. What is the heat transfer rate (W) from the base surface ONLY when the fins are attached to it?
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