Heat Exchangers (in ChemCAD) Team 4 David Bigelow, Sean Coluccio, Luke Rhodes, Peguy Touani February 12th, 2015 CHBE 446 0201

Heat Exchangers in ChemCAD ChemCAD offers a variety of heat exchangers for abundant uses Heating Cooling Reboiling Condensing Evaporating 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 parameters Can be specified from previous process Ensure that units are as desired Example using Common SI

Basic Heat Exchanger #1 Specify desired performance at a minimum Example using specified outlet temperature Can specify pressure drop or outlet pressure Further specifications available via other tabs

HE #1 Results ChemCAD 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 streams Useful 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 Cons Cons Pros Not always accurate with reality Does not consider corrosion or operating detriments Cost estimation not always reasonable Pros Effective for simulation of processes for varying scales Able to insert heat exchangers throughout process Produces results in multiple formats Abundant variations and possibilities

Questions?