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

2. 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

3. Types of Heat Exchangers

4. 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

5. 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

6. 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

7. HE #1 Results
ChemCAD will not allow “run” if process improperly specified
Results can be displayed in multiple formats
Can display balances as well

8. 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

9. Two-Stream Heat Exchanger CHEMCAD Simulation

10. Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)

11. Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)

12. Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)

13. Two-Stream Heat Exchanger CHEMCAD Simulation (cont.)

14. 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

15. Questions?