A steel pipe 150mm external diameter conveys steam at a temperature of 260°c and it is covered by two layers of lagging each 50mm thick the thermal conductivity of the inside layer of the lagging is 0.086W/mk while that of the outside layer is 0.055W/mk the outside surface temperature of the steel pipe can be taken as being the same as the temperature of the steam while that of the outside layer of lagging is 27°c Determine a) the heat loss/h for a pipe length of 30m b) the interface temperature between the two layers of lagging
A steel pipe 150mm external diameter conveys steam at a temperature of 260°c and it is covered by two layers of lagging each 50mm thick the thermal conductivity of the inside layer of the lagging is 0.086W/mk while that of the outside layer is 0.055W/mk the outside surface temperature of the steel pipe can be taken as being the same as the temperature of the steam while that of the outside layer of lagging is 27°c Determine a) the heat loss/h for a pipe length of 30m b) the interface temperature between the two layers of lagging
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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A steel pipe 150mm external diameter conveys steam at a temperature of 260°c and it is covered by two layers of lagging each 50mm thick the thermal conductivity of the inside layer of the lagging is 0.086W/mk while that of the outside layer is 0.055W/mk the outside surface temperature of the steel pipe can be taken as being the same as the temperature of the steam while that of the outside layer of lagging is 27°c Determine
a) the heat loss/h for a pipe length of 30m
b) the interface temperature between the two layers of lagging
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