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A 15 cm outer diameter steam pipe is covered with 5 cm high temperature insulation (k = 0.85 W/m °C ) and 4 cm of low temperature (k = 0.72 W/moC). The steam is at 500 °C and ambient air is at 40 °C. Neglecting thermal resistance of steam and air sides and metal wall, calculate the heat loss from 100 m length of the pipe. Also find temperature drop across the insulation.

A 15 cm outer diameter steam pipe is covered with 5 cm high temperature insulation (k = 0.85 W/m °C ) and 4 cm of low temperature (k = 0.72 W/moC). The steam is at 500 °C and ambient air is at 40 °C. Neglecting thermal resistance of steam and air sides and metal wall, calculate the heat loss from 100 m length of the pipe. Also find temperature drop across the insulation.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Subject: Heat Transfer 

A 15 cm outer diameter steam pipe is covered with 5 cm high temperature insulation (k = 0.85 W/m °C ) and 4 cm of low temperature (k = 0.72 W/m°C). The steam is at 500 °C and ambient air is at 40 °C. Neglecting thermal resistance of steam and air sides and metal wall, calculate the heat loss from 100 m length of the pipe. Also find temperature drop across the insulation.
Transcribed Image Text:A 15 cm outer diameter steam pipe is covered with 5 cm high temperature insulation (k = 0.85 W/m °C ) and 4 cm of low temperature (k = 0.72 W/m°C). The steam is at 500 °C and ambient air is at 40 °C. Neglecting thermal resistance of steam and air sides and metal wall, calculate the heat loss from 100 m length of the pipe. Also find temperature drop across the insulation.
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