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What is the exchanger heat transfer area, Ao, ft27 What is the exchanger Imtd? What is the heat exchanger duty, Q, btu/h?

What is the exchanger heat transfer area, Ao, ft27 What is the exchanger Imtd? What is the heat exchanger duty, Q, btu/h?

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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It has been decided that an old simple heat exchanger needs to be replaced. No records can be found and the only information that can be read off of the exchanger nameplate is that there is one-pass on both the shell and tube side, and that there are 12 steel 1.25" BWG 16 tubes that are 14 ft long. The exchanger is currently operating with a product stream on the shell-side and cooling water on the tube-side. The configuration is countercurrent. No data is available for the product stream. You can neglect tube-wall resistance and fouting but you must take into account the tube dimensions (since they are known). Product Stream p (/t3) Cp (btu/-F) Cooling Water Stream 62.4 1.0 Unknown Unknown Unknown k (btu/ft-hr-F) (cP) Inlet temp F Outlet temp F flowrate (spm) 0.335 Unknown 0.9 56 190 110 75 Unknown 98 What is the exchanger heat transfer area, Ao, ft2? What is the exchanger Imtd? What is the heat exchanger duty, Q, btu/hr? What is the tube-side reynolds number, Nre? What is Uo, btu/hr-F-t2? What is the tube-side coefficient, hi, btu/hr-F-t2? What is the shell-side coefficient, ho, btu/hr.F-ft27 What is the tube wall temperature, tw, F lyou must take into account the tube dimensiona)
Transcribed Image Text:It has been decided that an old simple heat exchanger needs to be replaced. No records can be found and the only information that can be read off of the exchanger nameplate is that there is one-pass on both the shell and tube side, and that there are 12 steel 1.25" BWG 16 tubes that are 14 ft long. The exchanger is currently operating with a product stream on the shell-side and cooling water on the tube-side. The configuration is countercurrent. No data is available for the product stream. You can neglect tube-wall resistance and fouting but you must take into account the tube dimensions (since they are known). Product Stream p (/t3) Cp (btu/-F) Cooling Water Stream 62.4 1.0 Unknown Unknown Unknown k (btu/ft-hr-F) (cP) Inlet temp F Outlet temp F flowrate (spm) 0.335 Unknown 0.9 56 190 110 75 Unknown 98 What is the exchanger heat transfer area, Ao, ft2? What is the exchanger Imtd? What is the heat exchanger duty, Q, btu/hr? What is the tube-side reynolds number, Nre? What is Uo, btu/hr-F-t2? What is the tube-side coefficient, hi, btu/hr-F-t2? What is the shell-side coefficient, ho, btu/hr.F-ft27 What is the tube wall temperature, tw, F lyou must take into account the tube dimensiona)
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