8 A copper hot-water cylinder of length 1-0m and radius 0-20 m is lagged by 20m of material of thermal conductivity 0-40 W m K. Estimate the temperature of the outer surface of the lagging, assuming heat loss is through the sides only, if hea has to be supplied at a rate of 0-25 kW to maintain the water at a steady temperature of 60°C.
8 A copper hot-water cylinder of length 1-0m and radius 0-20 m is lagged by 20m of material of thermal conductivity 0-40 W m K. Estimate the temperature of the outer surface of the lagging, assuming heat loss is through the sides only, if hea has to be supplied at a rate of 0-25 kW to maintain the water at a steady temperature of 60°C.
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 1.21P: 1.21 In an experimental set up in a laboratory, a long cylinder with a 5-cm diameter, and an...
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