A solid cylinder with a diameter of 3.0 cm and length of 3.2 cm, initially at a uniform temperature of 210°C, is suddenly exposed to a convection environment at 43°C with a convection coefficient of 380 W/m2 K. What is the minimum thermal conductivity of the cylinder material such that the lumped capacity method is applicable? Express your answer in W/m K.
A solid cylinder with a diameter of 3.0 cm and length of 3.2 cm, initially at a uniform temperature of 210°C, is suddenly exposed to a convection environment at 43°C with a convection coefficient of 380 W/m2 K. What is the minimum thermal conductivity of the cylinder material such that the lumped capacity method is applicable? Express your answer in W/m K.
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.1P: 1.1 On a cold winter day, the outer surface of a 0.2-m-thick concrete wall of a warehouse is exposed...
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6. A solid cylinder with a diameter of 3.0 cm and length of 3.2 cm, initially at a uniform temperature of 210°C, is suddenly exposed to a convection environment at 43°C with a convection coefficient of 380 W/m2 K. What is the minimum thermal conductivity of the cylinder material such that the lumped capacity method is applicable? Express your answer in W/m K.
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