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L A steam pipe of 10 cm ID and 11 cm OD is covered with an insulating substance k 1W/m.K. The steam pipe temperature is 200 °C and ambient tem.crature is 20 °C . If the convective heat transter cocfficient between insulating surface and air is S W/m.K, find the critical radius of insulation. For this walue of re, calculate the heat loss per one meter of ipe and the outer surface temperature. Neglect the resistance of the pipe material.

L A steam pipe of 10 cm ID and 11 cm OD is covered with an insulating substance k 1W/m.K. The steam pipe temperature is 200 °C and ambient tem.crature is 20 °C . If the convective heat transter cocfficient between insulating surface and air is S W/m.K, find the critical radius of insulation. For this walue of re, calculate the heat loss per one meter of ipe and the outer surface temperature. Neglect the resistance of the pipe material.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A steam pipe of 10 em ID and 11 cm OD is covered with an insulating substance k = 1W/m.K. The steam pipe temperature is 200 °C and anmbient tem..crature is 20 °C . If the convective heat transfer cocfficient between insulating surface and air is 8 W/m.K. find the critical radius of insulation. For this value of re, calculate the heat loss per one meter of pipe and the outer surface temperature. Neglect the resistance of the pipe material.
Transcribed Image Text:A steam pipe of 10 em ID and 11 cm OD is covered with an insulating substance k = 1W/m.K. The steam pipe temperature is 200 °C and anmbient tem..crature is 20 °C . If the convective heat transfer cocfficient between insulating surface and air is 8 W/m.K. find the critical radius of insulation. For this value of re, calculate the heat loss per one meter of pipe and the outer surface temperature. Neglect the resistance of the pipe material.
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