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d) A 0.3 cm thick aluminum plate (40 W/m. K) has rectangular fins on one side, 0.16 x 0.16 cm, spaced 0. 6 cm apart. The finned side is in contact with air at 38 °C and h = 28.4 W/m2. °C. On unfinned side water flows at 93 °C and h 283.7 W/m2.°C. Calculate (a) efficiency of fins (b) rate of heat transfer per unit area. %D

d) A 0.3 cm thick aluminum plate (40 W/m. K) has rectangular fins on one side, 0.16 x 0.16 cm, spaced 0. 6 cm apart. The finned side is in contact with air at 38 °C and h = 28.4 W/m2. °C. On unfinned side water flows at 93 °C and h 283.7 W/m2.°C. Calculate (a) efficiency of fins (b) rate of heat transfer per unit area. %D

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
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d) A 0.3 cm thick aluminum plate (40 W/m. K) has rectangular fins on one side, 0.16 x 0.16 cm, spaced 0.6 cm apart. The finned side is in contact with air at 38 °C and h = 28.4 W/m².°C. On unfinned side water flows at 93 °C and h = 283.7 W/m2.°C. Calculate (a) efficiency of fins (b) rate of heat transfer per unit area.
Transcribed Image Text:d) A 0.3 cm thick aluminum plate (40 W/m. K) has rectangular fins on one side, 0.16 x 0.16 cm, spaced 0.6 cm apart. The finned side is in contact with air at 38 °C and h = 28.4 W/m².°C. On unfinned side water flows at 93 °C and h = 283.7 W/m2.°C. Calculate (a) efficiency of fins (b) rate of heat transfer per unit area.
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