Heat Exchangers (in ChemCAD)
Team 4David Bigelow, Sean Coluccio, Luke Rhodes, Peguy Touani
February 12th, 2015CHBE 446 0201
Heat Exchangers in ChemCADChemCAD offers a variety of heat exchangers for abundant uses
HeatingCoolingReboilingCondensingEvaporating
Can be specified minimally or with exact specifications
Types of Heat Exchangers
Heat Exchanger Setup
• Requires input and output of specified components• Operating parameters must be specified
• Desired heat exchange specified• Ability to control heating/cooling steams with detailed heat exchangers
Basic Heat Exchanger #1
Specify components for feed stream
Defined feed parametersCan be specified from previous
process
Ensure that units are as desiredExample using Common SI
Basic Heat Exchanger #1Specify desired
performance at a minimumExample using
specified outlet temperature
Can specify pressure drop or outlet pressure
Further specifications available via other tabs
HE #1 ResultsChemCAD will not allow “run” if process
improperly specified
Results can be displayed in multiple formats
Can display balances as well
Two-Stream Heat Exchanger (HE #5)
Ability to manipulate hot and cold streamsUseful for two product
streams of differing temperature
Allows for different specifications and variations of operation
Two-Stream Heat Exchanger CHEMCAD Simulation
Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)
Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)
Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)
Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)
Pros and ConsCons
Not always accurate with realityDoes not consider corrosion or operating detrimentsCost estimation not always reasonable
ProsEffective for simulation of processes for varying scalesAble to insert heat exchangers throughout processProduces results in multiple formatsAbundant variations and possibilities
Questions?