A long water channel is covered with an aluminum cover 8 mm thick and 240 mm wide. The water flowing in the channel is at 24°C and has a heat transfer coefficent of hw = 275 W/m2 · K. The top of the cover is exposed to air at 24°C, and a heat transfer coefficient ha = 12 W/m2 · K. If the two sides of the aluminum cover are kept at 95°C, find a) Temperature at the middle of the aluminum cover b) Heat transferred to water per unit length of cover c) Heat transferred to air per unit length of Cover

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.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.64P
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Assume the missing data
A long water channel is covered with an
aluminum cover 8 mm thick and 240 mm
wide. The water flowing in the channel is at
24°C and has a heat transfer coefficent of
hw = 275 W/m2 · K. The top of the cover is
exposed to air at 24°C, and a heat transfer
coefficient ha = 12 W/m2 · K. If the two
sides of the aluminum cover are kept at
95°C, find
a) Temperature at the middle of the
aluminum cover
b) Heat transferred to water per unit length
of cover
c) Heat transferred to air per unit length of
Cover
Transcribed Image Text:A long water channel is covered with an aluminum cover 8 mm thick and 240 mm wide. The water flowing in the channel is at 24°C and has a heat transfer coefficent of hw = 275 W/m2 · K. The top of the cover is exposed to air at 24°C, and a heat transfer coefficient ha = 12 W/m2 · K. If the two sides of the aluminum cover are kept at 95°C, find a) Temperature at the middle of the aluminum cover b) Heat transferred to water per unit length of cover c) Heat transferred to air per unit length of Cover
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