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2013 Aspen Technology, Inc. AspenTech , aspenONE , the Aspen leaf logo, the aspenONE logo, and OPTIMIZE are trademarks of Asp en Technology, Inc. All rights reserved.11-3826-0713

Jump Start: Aspen Shell & Tube Exchanger V8 A Brief Tutorial and Sample Case for Sizing in EDR Shell & Tube(supplement to training and online documentation)Lauren Sittler, Product Management, Aspen Technology, Inc.Tom Ralston, Director, Equipment Design and Rating, Aspen Technology, Inc.


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Jump Start: Aspen Shell & Tube Exchanger V8

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Introduction to Aspen Shell & Tube ExchangerAspen Exchanger Design & Rating (Aspen EDR) software provides the most comprehensive package available fordesigning and rating heat exchangers. EDR software is used daily for thermal, mechanical and process engineering byengineering contractors, process operators and exchanger fabricators throughout the world. Aspen Shell & Tube

Exchanger can be used to design all major industrial shell & tube exchanger equipment types in any combination ofprocesses including single phase heating or cooling and boiling or condensation. Typically, users save between 10-30% onequipment cost by effectively designing their exchangers using Aspen EDR.

Given a process requirement and physical property data, the program conducts a comprehensive design search to find theoptimum cost arrangement capable of satisfying the process constraints. The program provides detailed exchangergeometry and performance details as well as a specification sheet, setting plan, and tube layout drawings.

Completed designs can be transferred to Aspen Shell & Tube Mechanical for complete mechanical design to therequirements of ASME or other leading international design codes.

Scope of this DocumentThis tutorial is intended as a guide to getting started using Aspen Shell & Tube Exchanger to create, evaluate, and savedesigns. It offers a step-by-step explanation of how an equipment designer would use the standalone program.

Instructions on how to import process and property data from Aspen HYSYS and Aspen Plus are included but, forsimplicity, the new automatic workflows for exchanger sizing provided in V8 simulators are covered in separatedocuments. The new workflows are invaluable to the process engineer conducting preliminary design of heat exchangersand as part of process revamp studies.

Additional resources for a more comprehensive understanding can be found at:

The AspenTech website

The AspenTech support site AspenTech business consultants

See the Additional Resources section of this document (page 11) for more detail. The files associated with this example areavailable for download on the Customer Support & Training Website .

Tutorial OverviewWe will demonstrate the workflow by completing the design of a Shell & Tube exchanger for a crude preheat train process.We will import process and property data from an Aspen HYSYS case to size the exchanger. Explanations for each stepwill be provided. The appendix provides additional details on each step, as well as instructions for alternative methods of

completing a step. Figure 1 shows the Aspen HYSYS process flow diagram; we are interested in Exchanger e304.
http://support.aspentech.com/webteamcgi/SolutionDisplay_view.cgi?key=137182http://support.aspentech.com/webteamcgi/SolutionDisplay_view.cgi?key=137182http://support.aspentech.com/webteamcgi/SolutionDisplay_view.cgi?key=137182


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Figure 1. Exchanger e304 in Aspen HYSYS Preheat Train

Step 1. Download the Aspen HYSYS FileDownload the file Preheat Train for Jump Start EDR.hsc, and save it on your desktop. We will import data from this filelater so remember the location.

Step 2. Create a New EDR CaseOn your desktop, open the Start Menu > All Programs > Aspentech > Exchanger Design and Rating V8.0 > ExchangerDesign and Rating User Interface.

When EDR opens, click on the File menu > New > Shell & Tube Exchanger (Shell&Tube) > OK (Figure 2).

Figure 2. Open Aspen EDR Shell & Tube


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The EDR Shell & Tube program will open in the Interactive Design Console. You will see that some default parameters havealready been specified and that some input is still required. Appendix A explains the EDR user interface. Take a minute tofamiliarize yourself with the navigation and the meanings of symbols, text coloring, etc.

Step 3. Import Process Data and Specify Application OptionsProcess and Property Data

Process and property data can be entered in three ways: (1) manually, (2) by using the physical property databanksprovided within the program, or (3) by importing from a simulation case. In this tutorial we will use the 3rd option andimport data from an Aspen HYSYS case file. The alternative methods are explained in Appendix B.

Import data from Aspen HYSYS

Click on the File menu > Import From > Aspen HYSYS V8.0. In the file browser locate the file Preheat Train for Jump StartEDR.hscand click Open. From the Exchanger List choose e304 and click OK (Figure 3).

Figure 3. Select Exchanger e304 in the Aspen HYSYS Case


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Another dialogue box Import PSF data will appear. Click OK again to import the case data. Now you can see that ourInput folder is fully specified, all red incomplete marks have disappeared.

To better model the real process conditions lets adjust the fouling resistance of our streams. Open the Process Data form.This can be found in the Console Process tab or Input > Problem Definition > Process Data. Set the following.

Hot Stream Cold Stream

Fouling Resistance 0.002 hF/BTU 0.001 hF/BTU

Application Options

Lets set the application options for this example.

From the navigation pane, expand the Problem Definition folder and open the Application Options form. Click on Input >

Problem Definition > Application Options. Figure 4 shows the desired specifications.

Figure 4. Set Application Options


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Step 5. Save and Run Sizing OptimizationNow that required input is complete, save the case. Run the sizing (full Shell & Tube design optimization logic) by clickingthe Run button on the Console. A Program Status window will appear showing the designs being evaluated. When the runis complete, close the window. We can see that there are a couple of warnings with this design, but no errors.

Step 6. Viewing the ResultsOpen the design Console from the navigation pane. On the Geometry tab we can see the setting plan, tube layout, andstream temperature profiles. We can also see basic geometry data such as the number of shells and tubes and thedimensions of both.

For this design, we have 2 shells in series with 2 tube passes and 26 baffles. Our oversurface % is 2 and our pressure dropratio is 0.88\0.48. The overall cost is $212,656 (Figure 6).

If we change one of the parameters and run the design again, we can see the results of the new design side-by-side with

our first design. This makes it easy to tell whether or not a given change improves the exchanger cost or performance.

Figure 6. Design Console Results


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Appendix A. Navigate the EDR User InterfaceNavigation Pane

The navigation pane provides access to data input and design specifications, program options, and results. All foldersmarked with a red X indicate that information is missing and must be specified before the calculation can be run.

Input fields marked in light blue shading must be completed in order to run the case. Note that many of the forms,including all those in the Exchanger Design folder and the Program Options, folder are automatically populated withdefault parameters and will be marked complete upon opening a new design file. It is useful to check that the specifiedinformation in these folders is appropriate for a particular case. All results forms will be greyed-out before the calculationis run, indicating that results are not yet available.

Text Coloring

Default parameters appear in red. Many of these may be interdependent and you may see them change as you changeother entries and selections. User specified information is always black. Figure 8 shows the Design Console interface.

Figure 8. The Design Console User Interface


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User Input Tabs: Geometry, Process, Errors & Warnings

Geometry

The Geometry tab contains all user-specified information pertaining to exchanger configuration, shell and tubedimensions, and the overall results of the simulation after the case is run.

Process

The Process tab contains data regarding the physical conditions of the process streams, pressure drop, and foulingresistance of the fluids.

Errors & Warnings

Check the Errors & Warnings tab after running the optimization to identify operational and performance risks that wereidentified with the design.

Appendix B. Alternative Methods to Specify

Process & Property DataManually Enter Property Data

Open the Property Data folder and click on Hot Stream Composition. On the Composition tab, click the down arrow in thedropdown box next to Physical Property Package. Choose User Specified properties. Open Input > Property Data > HotStream Properties. Here you can type in property data for a range of temperatures and pressures or you can Copy/Pastedata from Excel. Repeat for the Cold Stream Composition (Figure 9).

Figure 9. Manually Specify Property Data


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Searching the Properties Databanks

In the Property Data folder, on the Hot Stream Composition form, click on the dropdown box next to Physical PropertyPackage and choose one of the databases (Aspen Properties, COMThermo, BJAC). Click the Search Databank button.Enter the compound name, select the component to add, and click the add button. Repeat until your component list is

complete click ok (Figure 9).

Figure 10. Search for Compounds from the Properties Databank

Appendix C. Using a Design TemplateWhen you open a new case, instead of choosing New, click on the Templates Tab and choose from either the default EDRdesign templates or a template saved on your desktop. When the file is opened it will already contain geometry anddesign specifications preselected for that exchanger type. You can prepare your own templates to impose company designstandards or process pressure drop or fouling resistance constraints. You need to explicitly save your template files as.edt.

You will typically find the standard design templates provided with your installation in: C:\Program Files(x86)\AspenTech\Aspen Exchanger Design and Rating V8.0\Data\Template.


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Additional ResourcesCheck out other training materials specifically for this product:

Public Websitewww.aspentech.com/products/aspen-edr.aspx

www.aspentech.com/products/aspen-tascplus.aspx

Online Training

www.aspentech.com/products/aspen-online-training

Video Tutorials

Autosizing Shell & Tube Exchangers in Aspen HYSYS V8.0

https://www.brainshark.com/aspentech1/autosize-shell-tube-HYSYS

New Interactive Sizing in Aspen Plus

https://www.brainshark.com/aspentech1/edr-integration-aspen-plus

Jump Start Tutorial

Getting Started in Aspen Shell & Tube Exchanger V7.0

Jump Start: Sizing EDR Shell & Tube Exchangers in Aspen Plus

Help Menu
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2013 Aspen Technology, Inc. AspenTech , aspenONE , the Aspen leaf logo, the aspenONE logo, and OPTIMIZE are trademarks of A spenTechnology, Inc. All rights reserved. 11-3826-0713

About AspenTech

AspenTech is a leading supplier of software that optimizes process manufacturingfor energy, chemicals,engineering and construction, and other industries that manufacture and produce products from achemical process. With integrated aspenONE solutions, process manufacturers can implement best

practices for optimizing their engineering, manufacturing, and supply chain operations. As a result,AspenTech customers are better able to increase capacity, improve margins, reduce costs, and becomemore energy efficient. To see how the worlds leading process manufacturers rely on AspenTech toachieve their operational excellence goals, visit www.aspentech.com .
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