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Consider a system of 6-in. ID vertical pipe with a falling film of water on the wall. Estimate the gas-pahse mass transfer coefficients for water vapor evaporating into air at 2 atm and 25°C, and a mass flow rate of 1570 Ib/hr. Take DAB=0.130 cm?/s. Use the following correlation for gases in a wetted-wall column: 0.44 Sc = 0.023 Re0.8 Sc for Re> 2000 µ(g/ cm·s)=0.0716+4.94×10T – 3.71×10*T² where T(°C) v(cm?/s) = 0.5[0.13269+8.73×10¬T+9.8×10"T*] where T(°C)

Consider a system of 6-in. ID vertical pipe with a falling film of water on the wall. Estimate the gas-pahse mass transfer coefficients for water vapor evaporating into air at 2 atm and 25°C, and a mass flow rate of 1570 Ib/hr. Take DAB=0.130 cm?/s. Use the following correlation for gases in a wetted-wall column: 0.44 Sc = 0.023 Re0.8 Sc for Re> 2000 µ(g/ cm·s)=0.0716+4.94×10T – 3.71×10*T² where T(°C) v(cm?/s) = 0.5[0.13269+8.73×10¬T+9.8×10"T*] where T(°C)

Introduction to Chemical Engineering Thermodynamics
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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Consider a system of 6-in. ID vertical pipe with a falling film of water on the wall. Estimate the gas-pahse mass transfer coefficients for water vapor evaporating into air at 2 atm and 25°C, and a mass flow rate of 1570 Ib/hr. Take DAB=0.130 cm?/s. Use the following correlation for gases in a wetted-wall column: 0.83 0.44 Sc = 0.023 Re8 Sc°44 for Re > 2000 µ(g / cm·s)= 0.0716+4.94×10T- 3.71×10*T² where T(°C) v(cm?/s) = 0.5[0.13269+8.73×10 T+9.8×10"T*] where T(°C)
Transcribed Image Text:Consider a system of 6-in. ID vertical pipe with a falling film of water on the wall. Estimate the gas-pahse mass transfer coefficients for water vapor evaporating into air at 2 atm and 25°C, and a mass flow rate of 1570 Ib/hr. Take DAB=0.130 cm?/s. Use the following correlation for gases in a wetted-wall column: 0.83 0.44 Sc = 0.023 Re8 Sc°44 for Re > 2000 µ(g / cm·s)= 0.0716+4.94×10T- 3.71×10*T² where T(°C) v(cm?/s) = 0.5[0.13269+8.73×10 T+9.8×10"T*] where T(°C)
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