Q1: Water at 80 oC is pumped through 100 m of stainless steel pipe, k=16 W/m.K of inner and outer radius 47 mm and 50 mm respectively. The heat transfer coefficient due to water is 2000 W/m2.K. The outer surface of the pipe loses heat by convection to air at 20 oC and the heat transfer coefficient is 200 W/m2.K. Calculate the heat flow through the pipe. Also calculate the heat flow through the pipe when a layer of insulation, k=0.1 W/m.K and 50 mm radial thickness is .wrapped around the pipe

Q1: Water at 80 oC is pumped through 100 m of stainless steel pipe, k=16 W/m.K of inner and outer radius 47 mm and 50 mm respectively. The heat transfer coefficient due to water is 2000 W/m2.K. The outer surface of the pipe loses heat by convection to air at 20 oC and the heat transfer coefficient is 200 W/m2.K. Calculate the heat flow through the pipe. Also calculate the heat flow through the pipe when a layer of insulation, k=0.1 W/m.K and 50 mm radial thickness is .wrapped around the pipe

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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Question

Q1: Water at 80 oC is pumped
through 100 m of stainless steel pipe,
k=16 W/m.K of inner and outer radius
47 mm and 50 mm respectively. The
heat transfer coefficient due to water
is 2000 W/m2.K. The outer surface of
the pipe loses heat by convection to
air at 20 oC and the heat transfer
coefficient is 200 W/m2.K. Calculate
the heat flow through the pipe. Also
calculate the heat flow through the
pipe when a layer of insulation, k=0.1
W/m.K and 50 mm radial thickness is
.wrapped around the pipe

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