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Q:A hot surface at 100°C is to be cooled by attach- ing 3-cm-long, 0.25-cm-diameter aluminum pin fins (k 237 W/m · °C) to it, with a center-to-center distançe of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is 35 W/m2 · °C. %3D Determine the rate of heat transfer from the surface for a 1-m X 1-m section of the plate. Also determine the overall effectiveners of the fins. Ans. Q=17.4 kW , E fin = 7.1 3 cm 0.6 cm 0.25 cm

Q:A hot surface at 100°C is to be cooled by attach- ing 3-cm-long, 0.25-cm-diameter aluminum pin fins (k 237 W/m · °C) to it, with a center-to-center distançe of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is 35 W/m2 · °C. %3D Determine the rate of heat transfer from the surface for a 1-m X 1-m section of the plate. Also determine the overall effectiveners of the fins. Ans. Q=17.4 kW , E fin = 7.1 3 cm 0.6 cm 0.25 cm

Elements Of Electromagnetics
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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Q:A hot surface at 100°C is to be cooled by attach- ing 3-cm-long, 0.25-cm-diameter aluminum pin fins (k 237 W/m · °C) to it, with a center-to-center distançe of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is 35 W/m2 . °C. Determine the rate of heat transfer from the surface for a 1-m X 1-m section of the plate. Also determine the overall effectiveners of the fins. Ans. Q=17.4 kW , E fin = 7.1 3 cm 0.6 cm L0.25 cm
Transcribed Image Text:Q:A hot surface at 100°C is to be cooled by attach- ing 3-cm-long, 0.25-cm-diameter aluminum pin fins (k 237 W/m · °C) to it, with a center-to-center distançe of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is 35 W/m2 . °C. Determine the rate of heat transfer from the surface for a 1-m X 1-m section of the plate. Also determine the overall effectiveners of the fins. Ans. Q=17.4 kW , E fin = 7.1 3 cm 0.6 cm L0.25 cm
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