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A double - pipe heat exchanger is used to cool a hot fluid before it flows into a system of pipes. The inner surface of
A doublepipe heat exchanger is used to cool a hot fluid before it flows into a
system of pipes. The inner surface of the pipes is primarily coated with
polypropylene lining. The doublepipe heat exchanger has a thinwalled inner
tube, with convection heat transfer coefficients inside and outside of the inner
tube estimated to be Wm
K and Wm
K respectively. The heat
exchanger has a heat transfer surface area of m and the estimated fouling
factor caused by the accumulation of deposit on the surface is m
KW
The hot fluid cp JkgK enters the heat exchanger at C with a flow
rate of kgs In the cold side, cooling fluid cp JkgK enters the heat
exchanger at C with a mass flow rate of kgs
Determine:
a the effectiveness for the parallelflow configuration,
b the outlet temperature of the hot fluid for parallelflow configuration,
c the effectiveness for the counterflow configuration,
d The outlet temperature of the hot fluid for counterflow configuration.
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