What is the critical radius of insulation for a sphere equal to? k = thermal conductivity in W/m-K h = heat transfer coefficient in W/m?K (a) 2kh (c) k/h (b) 2k/h (d) v2kh

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 2.54P
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What is the critical radius of insulation for a
sphere equal to?
k = thermal conductivity in W/m-K
h = heat transfer coefficient in W/m?K
(a) 2kh
(c) k/h
(b) 2k/h
(d) V2kh
Transcribed Image Text:What is the critical radius of insulation for a sphere equal to? k = thermal conductivity in W/m-K h = heat transfer coefficient in W/m?K (a) 2kh (c) k/h (b) 2k/h (d) V2kh
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