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?