Consider a shell-and-tube heat exchanger constructed from a 0.0254 m OD tube to cool 7.93 kg/s of a 95% ethyl alcohol solution (cp = 3900 J/kg. K) from 68°C to 44°C, using 6.30 kg/s of water available at 10°C (cp=4187 J/kg. K). In the heat exchanger, 72 tubes will be used. Assume that the overall coef- ficient of heat transfer based on the outer-tube area is 568 W/m2 K. Calculate the surface area and the length of the heat exchanger for each of the following arrangements: 1. Parallel-flow shell-and-tube heat exchanger 2. Counterflow shell-and-tube heat exchanger
Consider a shell-and-tube heat exchanger constructed from a 0.0254 m OD tube to cool 7.93 kg/s of a 95% ethyl alcohol solution (cp = 3900 J/kg. K) from 68°C to 44°C, using 6.30 kg/s of water available at 10°C (cp=4187 J/kg. K). In the heat exchanger, 72 tubes will be used. Assume that the overall coef- ficient of heat transfer based on the outer-tube area is 568 W/m2 K. Calculate the surface area and the length of the heat exchanger for each of the following arrangements: 1. Parallel-flow shell-and-tube heat exchanger 2. Counterflow shell-and-tube heat exchanger
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:Consider a shell-and-tube heat exchanger constructed
from a 0.0254 m OD
tube to cool 7.93 kg/s of a 95% ethyl alcohol solution
(cp= 3900 J/kg . K) from
68°C to 44°C, using 6.30 kg/s of water available at 10°C
(cp = 4187 J/kg · K).
In the heat exchanger, 72 tubes will be used. Assume
that the overall coef-
ficient of heat transfer based on the outer-tube area is
568 W/m2 K. Calculate
the surface area and the length of the heat exchanger
for each of the following
arrangements:
1. Parallel-flow shell-and-tube heat exchanger
2. Counterflow shell-and-tube heat exchanger
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