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Welcome to the CACHE and EURECHA
Information Session for academics at the Chemical
Engineering World Congress in Glasgow, Scotland.
Alsh Room of the SECC
CACHE Presenter Prof. Michael B. Cutlip
EURECHA Presenter Prof. Zdravko Kravanja
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CACHE
CACHE - Computer Aids for Chemical Engineering
A Learning Community Providing Educational Aidsand Topical Conferences for the Chemical Engineering
Profession
Fourteen chemical engineering educators met in 1969 to form the
CACHE (Computer Aids for Chemical Engineering) Committee. The
CACHE Committee was initially sponsored by the Commission on
Education of the National Academy of Engineering and funded by theNational Science Foundation. In 1975, after several successful projects
had been completed, CACHE was incorporated as a not-for-profit
corporation in Massachusetts to serve as the administrative umbrella
for the consortium activities.
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Presentation
1.CACHE Web Site Resource for Faculty
with Emphasis on the Teaching
Resource Center
2.Upcoming CACHE Conferences
3.Available Software from CACHE
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CACHE Web Site: www.cache.org
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The CACHE Teaching Resource Center
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The CACHE Teaching Resource Center
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The CACHE Teaching Resource Center
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Announcements Upcoming Conferences
sponsored by CACHE
Foundations of Systems Biology in Engineering
University of California, Santa Barbara USA
August 7-10, 2005
Chemical Process ControlLake Louise, Alberta, Canada
January 8 13, 2006
Foundations of Molecular Modeling and Simulation
Blane, Washington USA
July 9 14, 2006
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CACHE Featured Software Products
Purdue Laboratory Modules
ChemSep
Polymath
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Complete Laboratory Simulation Packagesfrom Purdue University and available through CACHE
Large, complex or hazardous processes can be incorporated intothe laboratory
Emphasis can be shifted to proper experimental design and data
analysis
Budget and time constraints help students develop project
management skills
I. Hydrogen Liquefaction
Reactive Cooling Tower
Determine heat transfer parameters for
plate and fin heat exchanger
Determine reaction rate parameters for
ortho-para hydrogen reaction Design reactive cooling tower for ortho to
para conversion during hydrogen
liquefaction
ReactiveCooling System
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Complete Laboratory Simulation Packagesfrom Purdue University and available through CACHE
Latex ProductionII. Emulsion Polymerization
Model polymerization reactions anddistribution of species betweenmonomer, polymer and aqueous phases
Obtain propagation and chain transferreaction rate constants in a bench scalereactor
Study heat transfer requirements in asemi-batch production reactor
Emulsion Polymerization
Decaffeination Objectives
III. Coffee Bean Decaffeination Determine extraction efficiencies for caffeine,
flavor and aroma compounds Determine rate constants for side reaction
Select cycle time and temperature to optimize
bitterness and extract 97% caffeine
Blend beans to minimize cost and satisfy taste
panel requirements for flavor and aroma
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www.chemsep.org5
Convenient Windows interface Equilibrium and Rate-based column
models
Integrated graphics
Export to Excel, Word, and html Integrated and informative help
ChemSep Lite available FREE!
ChemSep is a program for
performing multicomponent
separation process calculations.It was created specifically for
use in courses on
thermodynamics and/or
separation processes. ChemSepintegrates flash, the classic
equilibrium stage column model
and a nonequilibrium or rate-
based column model in one easy
to use program.
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Nonequilibrium column model- Features a sophisticatednonequilibrium or rate-based model.
Databank- Comes with a databank of 189 commonchemicals.
Thermodynamic and Physical Property Models - Includesalmost all of the most widely used thermodynamic models.
Performance Correlations - Provides over 40 correlations formass transfer coefficients in different types of column, as wellas 18 different ways to estimate pressure drop and 16 forholdup.
Degrees of Freedom Analysis - Indicates the number of
degrees of freedom and identifies how many variablesremain to be specified.
McCabe-Thiele Diagrams -Available as a standard feature(even for multicomponent systems).
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Numerical Solutions for Mathematical Problems inChemical Engineering
POLYMATH Software
Linear Equations
Nonlinear EquationsDifferential Equations
Data analysis and Regression
Extremely Easy-to-Use on PCs
Excellent Problem Solving Capabilities
Also Provides ExcelSolutions
Automated Export of Problems to Excel Enables Stand-Alone Excel Calculations
Provides Differential Equations Add-In for Excel(Ode_Solver)
Promotes the Use of Other Excel Add-Ins such as
Aspen Properties that can provide access tophysical property databases.
Now Works with MATLAB
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A New Paradigm in Desktop Problem Solving
Involving Polymath, Aspen Properties, and Excel
Provides Advanced Problem Solutions
MathematicalModel
PhysicalProperties
Solution
Algorithm
DocumentationOutput
Excel
Solution
Aspen Properties
Polymath 6.0
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POLYMATH Software PresentsPOLYMATH 6.0
Numerical Computation PackageA Significant New Release
Extremely Easy-to-Use Excellent Problem Solving Capabilities
Now Works to Provide Excel Solutions
Automated Export of Problems to Excel
Enables Stand-Alone Excel Calculations
Provides Differential Equations Solver for Excel
Promotes the Use of Aspen Properties within ExcelCalculations
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POLYMATH 6.0Professional problem solving capabilities include:
Linear Equations - up to 264 simultaneous equations
Nonlinear Equations - up to 600 simultaneous nonlinear
and explicit algebraic equations
Differential Equations - up to 600 simultaneous ordinary
differential and explicit algebraic equations
Data analysis and Regression - up to 1000 data pointswith capabilities for linear, multiple linear, and nonlinear
regressions with extensive statistics plus polynomial and
spline fitting with interpolation and graphing capabilities
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POLYMATH 6.0 features include: EASE OF USE WITHOUT ANY PROGRAMMING LANGUAGES
OR CONTROL LANGUAGES TO REMEMBER
STANDARD WINDOWS EDITING EXTENSIVE USER ALGORITHM SELECTION AND CONTROL
EXECUTION WITH ALL 32-BIT WINDOWS OPERATING
SYSTEMS
COMPATIBILITY WITH PREVIOUS VERSIONS
THREE ON-BOARD UTILITIES: POWERFUL CALCULATOR,
UNIT CONVERTER, AND EXTENSIVE ENGINEERING
CONVERSION FACTORS EXTENSIVE ON-LINE DOCUMENTATION
AUTOMATIC PROBLEM EXPORT TO EXCEL EXCEL ADD-IN
FOR DIFFERENTIAL EQUATIONS
MATLAB OUTPUT GIVING ORDERED AND FORMATTED
EQUATIONS
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Demonstration Problem Cocurrent Operation of a Double
Pipe Heat Exchanger
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Some Problem Details Local Heat Transfer Coefficient
The following equation represents the local heat transfer coefficient
where the exponent n = 0.4 for heating and 0.3 for cooling
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Demonstration Problem Differential Equations
for Heat Exchanger
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Demonstration Problem:
Calculate the required length of a concurrent double
pipe heat exchanger with cooling water in the shell
side and benzene in the tube side. The cooling wateris available at 65 F and has a flow that is three
times that of the benzene. The configuration of the
heat exchanger is given below:
Entering the Problem into Polymath - Constant Properties
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Entering the Problem into Polymath - Constant Properties
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Aspen Properties Excel Calculator
Brings Physical Property Data to Excel
Pure component constants (MW, Normal boiling point).
Vapor pressure at a specified temperature
Pure component property at specified temperature andpressure
Mixture properties for a specified mixture at given
temperature and pressure
Two and three phase flash, bubble and dew point calculations
Preparing for Aspen Properties Building the aprbkp file
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Preparing for Aspen Properties Building the aprbkp file
Setting Up Aspen Property Data in an Excel Spreadsheet
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Setting Up Aspen Property Data in an Excel Spreadsheet
Using Aspen Properties Add-In for Excel
Export the Polymath Program to the Open Excel Book with a
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Export the Polymath Program to the Open Excel Book with a
Single Keypress
The Polymath Problem is Automatically Exported to a new
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The Polymath Problem is Automatically Exported to a new
Excel Worksheet in the open Workbook.
The Excel Spreadsheet is Ready for Solving Differential
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The Excel Spreadsheet is Ready for Solving Differential
Equations
The Polymath Solution Needs to be Copied into the Aspen
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The Polymath Solution Needs to be Copied into the Aspen
Properties Worksheet
The Physical Property Information Is Copied into the Excel
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The Physical Property Information Is Copied into the Excel
Problem Solution
The Add-In (Ode Solver) for Solving Differential Equations
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The Add In (Ode_Solver) for Solving Differential Equations
is Selected and Initialized
The Report of the Differential Equation Solution is
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e epo o e e e qu o So u o s
Automatically Generated on a new Worksheet
A Graph can be Generated on the Report Worksheet
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p p
SUMMARY - A New Paradigm in Desktop Problem
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g p
Solving Involving Polymath, Aspen Properties, and Excel
Provides Advanced Problem Solutions in Excel
MathematicalModel
PhysicalProperties
Solution
Algorithm
Documentation
Output
Excel
Solution
Aspen Properties
Polymath 6.0
CACHE Web htt // h
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CACHE Web http://www.cache.org
or E-mail Contact [email protected]
Announcements of upcoming conferences
Brochures on ChemSep and Polymath
Free personal copy of Polymath with
license for one year Trial use of Polymath for your department,
faculty, staff, and labs for one term ~ 4months
Answers to questions regarding CACHE
http://www.cache.org/mailto:[email protected]:[email protected]://www.cache.org/