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Teach Yourself the Basics of Aspen Plus

ISBN: 978-0-470-56795-1
232 pages
March 2011
Teach Yourself the Basics of Aspen Plus (0470567953) cover image
Aspen Plus is on of the most popular process simulation software programs used industrially and academically. Though the software is available at many corporations and universities, there are no textbooks which are dedicated to teaching the step-by-step use of the software. This book is designed to fill that need. The structure of the book is unique in that it emulates a lecture /workshop classroom environment.

Each chapter starts with the equivalent of a classroom lecture followed by workshops which provide experience in the chapter's subject matter. The enclosed CD contains solutions, both in Aspen Plus and text formats, to examples imbedded in the text  as well as to all the workshops. There are also notes at the end of each chapter designed to aid readers that have difficulty with the workshops.

Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

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PREFACE.

1 INTRODUCTION TO ASPEN PLUS.

1.1 Starting Aspen Plus.

1.2 Graphic Users Interface.

1.3 Next Button.

1.4 Setup Specifications Display.

1.5 Simulation Options.

1.6 Units.

1.7 Components.

1.8 Properties.

1.9 Streams.

1.10 Blocks.

1.11 Viewing Results.

1.12 Object Manager.

1.13 Plotting Results.

References.

2 PROPERTIES.

2.1 Pure Component Data Banks.

2.2 Property Analysis.

2.3 Property Estimation.

COPYRIGHTED MATERIAL.

2.4 Workshops.

References.

3 THESIMPLEBLOCKS.

3.1 Mixer/Splitter Blocks.

3.1.1 Mixer Block.

3.1.2 Fsplit Block.

3.2 Simple Separator Blocks.

3.2.1 Sep Block.

3.2.2 Sep2 Block.

3.3 Some Manipulator Blocks.

3.3.1 Dupl Block.

3.3.2 Mult Block.

3.4 Workshops.

4 PROCESSES WITH RECYCLE.

4.1 Blocks with Recycle.

4.2 Heuristics.

4.3 Workshops.

References.

5 FLOWSHEETING AND MODEL ANALYSIS TOOLS./b>

5.1 Introduction to Fortran in Aspen Plus.

5.2 Basic Interpreted Fortran Capabilities.

5.2.1 Primary Fortran Operators.

5.2.2 Precedence of Calculations.

5.2.3 Statement Format.

5.2.4 Program Logic Control.

5.3 Sensitivity Function.

5.4 Design Specification.

5.5 Calculator Function.

5.6 Transfer Function.

5.7 Workshops.

References.

6 THE DATA REGRESSION SYSTEM.

6.1 Parameters of Equations of State.

6.2 Parameters of Activity Coefficient Equations.

6.3 Basic Ideas of Regression.

6.4 Mathematics of Regression.

6.4.1 Newton–Raphson Method for Solution of Nonlinear Equations.

6.4.2 Direct Optimization of an Objective Function.

6.5 Practical Aspects of Regression of VLE or LLE Data.

6.5.1 Regression of VLE Data.

6.5.2 Regression of LLE Data.

6.6 Workshops.

References.

7 FLASHES AND DECANTER.

7.1 Flash2 Block.

7.2 Flash3 Block.

7.3 Decanter Block.

7.4 Workshops.

References.

8 PRESSURE CHANGERS.

8.1 Pump Block.

8.2 Compr Block.

8.3 MCompr Block.

8.4 Pipelines and Fittings.

8.5 Workshops.

Reference.

9 HEAT EXCHANGERS.

9.1 Heater Block.

9.2 Heatx Block.

9.3 Mheatx Block.

9.4 Workshops.

References.

10 REACTORS.

10.1 RStoic Block.

10.2 RYield Block.

10.3 REquil Block.

10.4 RGibbs Block.

10.5 Reactions for the Rigorous Models.

10.5.1 Equilibrium Class.

10.5.2 Powerlaw Class.

10.5.3 Langmuir–Hinshelwood–Hougen–Watson Class.

10.5.4 Generalized–Langmuir–Hinshelwood–Hougen–Watson Class.

10.6 RCSTR Block.

10.7 RPlug Block.

10.8 RBatch Block.

10.9 Workshops.

References.

11 MULTISTAGE EQUILIBRIUM SEPARATORS.

11.1 Basic Equations.

11.2 The Design Problem.

11.3 A Three-Product Distillation Example.

11.4 Preliminary Design and Rating Models.

11.4.1 DSTWU.

11.4.2 Distl.

11.5 Rigorous Models.

11.5.1 RadFrac.

11.5.2 Extract.

11.6 BatchSep.

11.7 Workshops.

References.

12 PROCESS FLOWSHEET DEVELOPMENT.

12.1 Heuristics.

12.2 Example: The Production of Styrene.

12.3 A Model with Basic Blocks.

12.4 Properties.

12.5 Rigorous Flash and Decanter.

12.6 Analyzing the Rigorous Distillation.

12.7 Integrating the Rigorous Distillation Into the Flowsheet.

12.7.1 Selection of a Tear Stream.

12.7.2 Sequence of Calculations.

12.8 Reactor Feed.

12.9 Miscellaneous Considerations.

12.10 Workshops.

Reference.

13 OPTIMIZATION.

13.1 Optimization Example.

13.2 Workshops.

References.

14 COMPLEX EQUILIBRIUM STAGE SEPARATIONS.

14.1 Energy Integration Applications.

14.2 Homogeneous Azeotropic Distillation.

14.3 Extractive Distillation.

14.4 Heterogeneous Operations.

14.5 Workshops.

References.

INDEX.

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RALPH SCHEFFLAN has been an Adjunct Professor at Stevens Institute of Technology (SIT) for the past twenty-nine years. He has taught four graduate courses—thermodynamics, process simulation, numerical methods, and equilibrium stage operations—during his time there, as well as being SIT's representative to Aspen Technology. Dr. Schefflan introduced process simulation at SIT evolving from Flowtran to Aspen Plus. In his twenty-two years at Hoffmann-LaRoche he also introduced process simulation and was a founding member of the Flowtran Users Group.
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"Intended for graduate students in chemical engineering, this guide to the Aspen Plus process modeling software tool provides practical instruction for getting started with this useful simulation tool." (Booknews, 1 April 2011)

 

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