Q2) Consider a copper pin fin 0.25 cm in diameter k = 396 W/m. K that protrudes from a wall a 95°C into ambient air at 25°C. The heat transfer is mainly by natural convection with a coefficient equal to 10 W/m K. Calculate the heat loss. assuming that : (a) The fin is "infinitely long" (b) The fin is 2.5 cm long and the coefficient at the end is the same as around the circumference.
Q2) Consider a copper pin fin 0.25 cm in diameter k = 396 W/m. K that protrudes from a wall a 95°C into ambient air at 25°C. The heat transfer is mainly by natural convection with a coefficient equal to 10 W/m K. Calculate the heat loss. assuming that : (a) The fin is "infinitely long" (b) The fin is 2.5 cm long and the coefficient at the end is the same as around the circumference.
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.
Chapter3: Transient Heat Conduction
Section: Chapter Questions
Problem 3.16P: 3.16 A large, 2.54-cm.-thick copper plate is placed between two air streams. The heat transfer...
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