A kind of liquid is flowing through a pipe. Diameter of the pipe is 20 cm, initial temperature of the liquid at the entrance of the pipe is 22°C and flow velocity is 20 cm/s. The average pipe wall temperature is 2°C. Properties of this liquid are as given (Table 1). If the temperature of liquid is 20°C at the exit of the pipe, then, determine the rate of heat transfer and pipe length. Table 1 k Cp kJ/kg-K °C kg/m3 W/m-K mPa-s 2.0 900 0.145 60.0 1.80 22.0 890 0.145 20.0 1.90

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
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A kind of liquid is flowing through a pipe. Diameter of the pipe is 20 cm, initial temperature
of the liquid at the entrance of the pipe is 22°C and flow velocity is 20 cm/s. The average pipe
wall temperature is 2°C. Properties of this liquid are as given (Table 1). If the temperature of
liquid is 20°C at the exit of the pipe, then, determine the rate of heat transfer and pipe length.
Table 1
k
Cp
kJ/kg-K
°C
kg/m3
W/m-K
mPa-s
2.0
900
0.145
60.0
1.80
22.0
890
0.145
20.0
1.90
Transcribed Image Text:A kind of liquid is flowing through a pipe. Diameter of the pipe is 20 cm, initial temperature of the liquid at the entrance of the pipe is 22°C and flow velocity is 20 cm/s. The average pipe wall temperature is 2°C. Properties of this liquid are as given (Table 1). If the temperature of liquid is 20°C at the exit of the pipe, then, determine the rate of heat transfer and pipe length. Table 1 k Cp kJ/kg-K °C kg/m3 W/m-K mPa-s 2.0 900 0.145 60.0 1.80 22.0 890 0.145 20.0 1.90
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