er%20Fundamentals%20and%20Applications... Q and 1100 W/m².K, respectively. The heat exchanger has a heat transfer surface area of 2.5 m², and the estimated fouling factor caused by the accumulation of deposit on the surface is 0.0002 m² K/W. The hot fluid (c, = 3800J/kg-K) enters the heat exchanger at 200°C with a flow rate of 0.4 kg/s. In the cold side, cooling fluid (c = 4200 J/kg-K)enters the heat exchanger at 10°C with a mass flow rate of 0.5 kg/s. S e of 10 nd is er- ra- ate un- an ater the for cold heat mine erall 11-104 Cold water (c₂=4180 J/kg-K) leading to a shower enters a thin-walled double-pipe counterflow heat exchanger at 15°C at a rate of 0.25 kg/s and is heated to 45°C by hot water (cp=4190 J/kg-K) that enters at 100°C at a rate of 3 kg/s. If the overall heat transfer coefficient is 950 W/m2.K, determine the rate of heat transfer and the heat transfer surface area of the heat exchanger using the e-NTU method. Answers: 31.35 kW, 0.482 m² Hot water A 100°C 3 kg/s 45°C FIGURE P11-104 1 Cold water 15°C 0.25 kg/s *w* Desktop Activate Windor 23°C 8E6
er%20Fundamentals%20and%20Applications... Q and 1100 W/m².K, respectively. The heat exchanger has a heat transfer surface area of 2.5 m², and the estimated fouling factor caused by the accumulation of deposit on the surface is 0.0002 m² K/W. The hot fluid (c, = 3800J/kg-K) enters the heat exchanger at 200°C with a flow rate of 0.4 kg/s. In the cold side, cooling fluid (c = 4200 J/kg-K)enters the heat exchanger at 10°C with a mass flow rate of 0.5 kg/s. S e of 10 nd is er- ra- ate un- an ater the for cold heat mine erall 11-104 Cold water (c₂=4180 J/kg-K) leading to a shower enters a thin-walled double-pipe counterflow heat exchanger at 15°C at a rate of 0.25 kg/s and is heated to 45°C by hot water (cp=4190 J/kg-K) that enters at 100°C at a rate of 3 kg/s. If the overall heat transfer coefficient is 950 W/m2.K, determine the rate of heat transfer and the heat transfer surface area of the heat exchanger using the e-NTU method. Answers: 31.35 kW, 0.482 m² Hot water A 100°C 3 kg/s 45°C FIGURE P11-104 1 Cold water 15°C 0.25 kg/s *w* Desktop Activate Windor 23°C 8E6
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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Transcribed Image Text:er%20Fundamentals%20and%20Applications... Q
and 1100 W/m².K, respectively. The heat exchanger has a heat
transfer surface area of 2.5 m², and the estimated fouling factor
caused by the accumulation of deposit on the surface is 0.0002
m² K/W. The hot fluid (c, = 3800J/kg-K) enters the heat
exchanger at 200°C with a flow rate of 0.4 kg/s. In the cold side,
cooling fluid (c = 4200 J/kg-K)enters the heat exchanger at
10°C with a mass flow rate of 0.5 kg/s.
S
e
of
10
nd
is
er-
ra-
ate
un-
an
ater
the
for
cold
heat
mine
erall
11-104 Cold water (c₂=4180 J/kg-K) leading to a shower
enters a thin-walled double-pipe counterflow heat exchanger at
15°C at a rate of 0.25 kg/s and is heated to 45°C by hot water
(cp=4190 J/kg-K) that enters at 100°C at a rate of 3 kg/s. If
the overall heat transfer coefficient is 950 W/m2.K, determine
the rate of heat transfer and the heat transfer surface area of the
heat exchanger using the e-NTU method. Answers: 31.35 kW,
0.482 m²
Hot
water
A
100°C
3 kg/s
45°C
FIGURE P11-104
1
Cold water
15°C
0.25 kg/s
*w*
Desktop
Activate Windor
23°C
8E6
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