Water at a rate of 4000 kg/hr is heated from 30 °C to 80 °C by pressurized water that enters the heat exchanger at 150 °C and a flow rate of 6000 kg/hr. A shell-and-tube heat exchanger is used in which the water makes two passes through the shell and the pressurized water makes four tube passes. The overall heat transfer coefficient of the heat exchanger is 350 W/m²·K. Please use LMTD method to calculate the area required for the heat exchanger. (Hint: Guessing to = 117 °C, then use Table A.6 to get cp.h) T T. 1.0 0.9 6.0 4.0 3.0 2.0 1.5 1.0 0.8 0.6 0.4 0.2 0.8 0.7 0.6 T; – T, R = 0.5 0.1 0.2 О.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 。-ち P = T¡ – ti F
Water at a rate of 4000 kg/hr is heated from 30 °C to 80 °C by pressurized water that enters the heat exchanger at 150 °C and a flow rate of 6000 kg/hr. A shell-and-tube heat exchanger is used in which the water makes two passes through the shell and the pressurized water makes four tube passes. The overall heat transfer coefficient of the heat exchanger is 350 W/m²·K. Please use LMTD method to calculate the area required for the heat exchanger. (Hint: Guessing to = 117 °C, then use Table A.6 to get cp.h) T T. 1.0 0.9 6.0 4.0 3.0 2.0 1.5 1.0 0.8 0.6 0.4 0.2 0.8 0.7 0.6 T; – T, R = 0.5 0.1 0.2 О.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 。-ち P = T¡ – ti F
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:Water at a rate of 4000 kg/hr is heated from 30 °C to 80 °C by pressurized water that enters the
heat exchanger at 150 °C and a flow rate of 6000 kg/hr. A shell-and-tube heat exchanger is used
in which the water makes two passes through the shell and the pressurized water makes four tube
passes. The overall heat transfer coefficient of the heat exchanger is 350 W/m2-K. Please use
LMTD method to calculate the area required for the heat exchanger. (Hint: Guessing to = 117 °C,
then use Table A.6 to get cp.h)
%3|
T;
T.
1.0
0.9
6.0 4.0 3.0
2.0
1.5
1.0 0.8 0.6
0.4
0.2
0.8
0.7
0.6
T;- T.
R =
to - t;
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
P =
T¡ - ti
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