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Problem Statement: How do I select the location of the center tube on a center line? | Solution: There are certain ways to do so in Shell and Tube Exchanger (S&T Exch) and Shell and Tube Mechanical (S&T Mech). Please use the steps below to select the location of center tube.
For Aspen Shell & Tube Exchanger: When in Rating or Simulation Mode, you can select the center tube location (Off center line or On... |
Problem Statement: When running an EDR file, user gets a Visual Fortran run-time error. How can user solve this problem? | Solution: This problem is caused because users changed some data files in the location of customized database folder, which is specified in File> Options. By default, the directory is C:\ProgramData\AspenTech\Aspen Exchanger Design and Rating V X.X
Users have two potential solutions if that error comes:
1. Rena... |
Problem Statement: How do I upgrade the customized material database from lower version to higher version? | Solution: In this solution, we will use upgrading EDR V8.4 to V8.8 as an example.
Method 1: Create Separate Database
1. Find the customized database directory by going to EDR V8.4. Tools / Program Settings / Files. You should see the default location. In this example, it's C:\ProgramData\AspenTech\Aspen Exchanger D... |
Problem Statement: How to prevent users from adding User Data Sources in ADSA Client configuration tool. | Solution: Locate dsaconfig.exe present in the C:\Program Files (x86)\Common Files\AspenTech Shared\Adsa
Rename the dsaconfig.exe to something else, say dsaconfig1.exe.
After you rename, once you click on "User Data Source" in ADSA, nothing should happen.
Fixed in Version
CQ00598131: Defect closed with workaround.
... |
Problem Statement: What is the difference between total tube length and effective tube length in Aspen Air Cooled Exchanger? How do they impact the calculation of finned surface area? | Solution: The total tube length includes the ends fitted into the tubesheets and where the tube comes into contact with tube supports. This input item is only used for tube side pressure drop and exchanger weight calculations.
The "Effective Tube Length" is is the length of tube that is exposed to heat transfer, it i... |
Problem Statement: Why is there no condensation calculation when using gas on the outside of the Aspen Air Cooled Exchanger? | Solution: Dry gas is appropriate for waste heat recovery units where gases such as flue gases are being cooled. Also for any exchanger where gases other than or including air are handled. It should be noted that Air Cooled Exchanger cannot handle condensation of any of the components of the gas stream. However, if cond... |
Problem Statement: How does the Aspen Shell & Tube Exchanger package estimate the cost of the exchangers? | Solution: The Costing Calculation can be thought of as a costing simulation as it considers all aspects of the fabrication process. The costing calculation is performed as part of the mechanical calculation run. Within a program run, once all the geometry of each component part of the heat exchanger has been calculated... |
Problem Statement: The customer needs to reuse a large bundle for a smaller service by plugging some of the tubes in the bundle. What is the best way to ensure the simulation results are accurate on both the shell and tubeside after the tubes are plugged? | Solution: 1) Run Hetran & optimize your design.
2) Click on Run - Update Hetran to put design in the rating mode.
3) Go to Input - Exchanger Geometry - Rating/Simulation - and Use existing layout(of course you can start at this point if you started as a rating instead of a design).
4) Go to Input - Exchanger Geometry -... |
Problem Statement: What does "connected in parallel/series" means in the top of the TEMA sheet? | Solution: The below pictures explain the designations for series/parallel. The process fluid is shown, but the utility fluid has been omitted for clarity's sake:
Keywords: Heatx, Hetran, Tasc, Tasc+, HTFS, HTFS+, Bjac, B-Jac
References: None |
Problem Statement: When opening the aspenONE Process Explorer site in a supported web browser the default behavior of the home page is to display action links to Process Explorer, Community and Show Everything:
This is not happening.
1. Instead an empty area under the Universal Bar (uBar) is seen. The uBar does not e... | Solution: The likely cause of this problem is that the Process Data Rest service is not running. In Internet Information Services (IIS) the Process Data Rest service is controlled by the application pool that is associated with the Process Data virtual applications.
Therefore, run IIS Manager (inetmgr.exe) on the web s... |
Problem Statement: Why does user see different Shell Side Velocity values reporting in TEMA Sheet and Overall Summary? | Solution: Both result sheets actually report different velocity values for shell side condition.
TEMA Sheet ---> Mean Velocity & Maximum Velocity throughout the shell side
Overall Summary ---> Inlet Velocity & Outlet Velocity of Bundle Crossflow of the shell side.
Keywords: Shell & Tube, Shell, Velocity, TEMA, Summary,... |
Problem Statement: How to view material properties (such as thermal conductivity and yield strength) at different temperatures in Aspen Exchanger Design & Rating. | Solution: In order to view the properties of materials at different temperature, follow the below steps;
1. Go to Customize tab in Ribbon Bar and select Material Database and Select a Material Databank like Old ASME.
      Â
2. After selecting database search your material and select the material property which ... |
Problem Statement: While trending a tag in aspenONE Process Explorer on a client machine, you may receive an error "IP.21 is inaccessible" in the value column.
The Data Server log files that can be found in "C:\ProgramData\AspenTech\DiagnosticLogs\ProcessData" on the A1PE Web Server report an error "Failed to create I... | Solution: This error usually occurs when both the 32-bit and the 64-bit versions of IP21DAManager.dll exist on the aspenONE Process Explorer web server.
The Aspen Process Data Service uses the 64-bit version of the dll.
To resolve this error try un-registering and re-registering both the DLL’s using the command line.
1... |
Problem Statement: You can easily customize your workspace by using the Save to Home icon to add links to files and searches, this is explained in the online help file. Is it possible to further customize the aspenONE home page by, for example, removing the Community action link? | Solution: The default content of the aspenONE home page is controlled by a text file:
\inetpub\wwwroot\AspenTech\ProcessExplorer\WorkspaceDefault.json
Simply modify this file in a text editor to remove or rename core Action Links (such as the Community link) or even add your own action links that can open any other ext... |
Problem Statement: How to setup a heat exchanger model in the new Aspen Exchanger Design and Rating interface. | Solution: The new interface provides an easy way to set up a new EDR model. Home ribbon is set up in such a manner that it reflects the common work flow in building a new EDR model.
1. Provide the Process, Components (Properties) and Geometry
The Model Setup group provides access to key input forms to complete the mode... |
Problem Statement: How is the Shell Side MEAN Velocity that is reported in the TEMA sheet is calculated? | Solution: In TEMA Sheet, shell side velocity values are reported in Mean and Maximum values.
The shell side mean velocity value reported in TEMA Sheet is calculated based on the following items:
(1) Shell inlet space velocity,
(2) Shell outlet space velocity
(3) Crossflow velocity of the baffles space near inlet an... |
Problem Statement: aspenONE Process Explorer provides a nice interface to visualize different kind of plots that can actually be used on custom application to fulfill specifics needs. This solution shows a method to used aspenONE Process Explorer main plot view for custom applications using Visual Studio. The example p... | Solution: I. Developing the application
In this example we’re going to build a VB ASP.Net web project using Visual Studio 2015. This simple custom application will display an aspenONE Process Explorer tag trend, plot or graphic based on entries or file name provided at user interface though a dropdown list box, prevent... |
Problem Statement: What are the criteria for maldistribution in Aspen Plate Fin Exchanger? | Solution: The distributors at the inlet and outlet of each layer consist of one or two pads of finning. At least one of which is at an angle to the main flow direction in order to direct the flow in the main fin to or from a stream header.
Each distributor pad has a defined fin type and flow direction, so the mass flux... |
Problem Statement: There are various application types of column and drum as follows:
What will change by the selection?
How does changing the selection affect the Equipment Design/Cost? | Solution: These are different configurations for the component and will change the volumetric model (Piping and Instrumentation) scope. So for the different application options you will see piping and instrumentation cost differences.
A visual depiction of the different application options is available in the P&ID
Ke... |
Problem Statement: Does Office 365 work with Aspen Capital Cost Estimator V8.8.2? | Solution: Aspen Capital Cost Estimator (ACCE) V8.8.2 runs with Office 365 desktop deployment only. It does not work when installed with the "Click to Run" deployment.
Keywords: Office 365, "Click to Run"
References: None |
Problem Statement: How to update the targets when we are using production targets function in PIMS? | Solution: Open production targets from the tool bar.
Select your targets and send to Targets pane shown like below, we can see the capacity for VT2 in case 11 is 25 now.
Close the window and go back to case table, change the capacity of VT2 from 25 to 30 then run the model again. Go back to the pr... |
Problem Statement: After clicking on the "Show Everything" action link on the home page or clicking on the magnifying glass button on the Universal Bar (uBar) within aspenONE Process Explorer (a1PE), the Search page does not display as expected. Instead you see the following message:
Access service error !
1. Text Stat... | Solution: 1. This suggestion can also be found in Knowledge Base article 142321-2 but surely represents the number one cause of this problem and is worth repeating: In Internet Information Services (IIS) Manager on the a1PE server you should check the Authentication on the aspenONE application and make sure you have An... |
Problem Statement: All values to be saved on Aspen InfoPlus.21 database need to use a proper record definition as well as a proper format (in most cases) so that the information provided by them can be properly interpreted. Aspen InfoPlus.21 provides a set of records definitions and format that can cover almost all kin... | Solution: There are three main kind of records definitions to saved values that are provided on Aspen InfoPlus.21 out-of-the-box:
IP_AnalogDef
IP_DiscreteDef
IP_TextDef
Usage of these records definitions is explained as follow:
Usage of IP_AnalogDef records
IP_AnalogDef records will work properly for next canonical typ... |
Problem Statement: aspenONE SLM License Manager V8.8 or V9.0 (Client side application) cannot load server info from Sentinel Server 9.6.0. The error message below shows:
“Could not communicate with the server. Make sure that the server is running and accessible form this machine.”
This is caused by Internet Control ... | Solution: This is happening because the SLM License Manager included in V8.8 and V9.0 return an error message if the machine cannot be reached by ping.
There are two workarounds:
Install a later version of SLM License Manager (V10.0 or later)
Unblock the required ports on the license server. (See the Microsoft KB artic... |
Problem Statement: How can I report volumetric HHV and/or LHV in different units? | Solution: Units to report volumetric HHV and LHV are limited, only a few options are available. However, using the Spreadsheet block within HYSYS, it is possible to take a calculated value and convert it to a specific set of units.
In the attached example, HHV is calculated and reported in MMBtu/gal, and by using a Spr... |
Problem Statement: How to upload Bulk loading of Strap Table data in Advisor? | Solution: Aspen Operations Accounting(AORA/Advisor) does not have any Built-in Function to upload Bulk loading of Strap Table data. The only option is, to use SQL Server Management Studio that is the feature of Import / Export Data option.
The below procedure may be followed for bulk uploading of data in to Strapping t... |
Problem Statement: How do I read Aspen HYSYS cases created in a later version when I am running Aspen HYSYS of a lower version? It complains that “Files created in a newer version of HYSYS cannot be opened in an older version of HYSYS”. | Solution: You may use XML technology for the backward compatibility, e.g. it applies if you would like to read a case created in Aspen HYSYS v10 but you are running Aspen HYSYS v8 or v9.
First save the case in XML format:
Within Aspen HYSYS later version, go to File --> Save as
In the Save as type, choose “HYSYS XML Ca... |
Problem Statement: Do you have any suggestions for setting up my HYSYS views while running in dynamic mode? | Solution: The attached document entitled "Formatting HYSYS for Easy Operation in Dynamic Mode" gives a number of suggestions on how to set up strip charts, PFDs and your HYSYS screen.
Keywords: Dynamics; Strip Charts
References: None |
Problem Statement: This Knowledge Base article provides steps to resolve the following error:
“You do not have the necessary components installed (Base API) for testing. Contact your system administrator if you believe you should have access to this functionality."
.. which may be encountered when one clicks on t... | Solution: Note: This solution is only applicable to Aspen Extractor versions 9.x.
The issue occurs on the 64-bit version of the Extractor and is caused by missing dlls.
The Configuration Test tool requires 32-bit dlls, which were not shipped with the 64-bit version of the Extractor.
Attached to this KB article is a zip... |
Problem Statement: When I leave the Basis environment after making a change, HYSYS asks if I want to be left in HOLD mode. What should I choose? | Solution: The reason HYSYS will prompt you to be left in holding mode is that it has been detected that you have made changes in Properties Environment (Basis environment). In some instances, this will impact the thermodynamic behaviour of your system, and therefore pieces of information which you have specified in you... |
Problem Statement: How do I backup and restore a workspace? | Solution: To backup a workspace.
1. Open AZ191Backup.exe (for V10). Default location is: C:\Program Files\AspenTech\Basic Engineering V10.0\DataServices\x64bin
2. Select Backup Workspace option and click Next.
3. Select the workspace to backup from dropdown list and click Next.
... |
Problem Statement: What is Aspen Fleet Optimizer Order Manager Web? | Solution: Credit Management allows credit representatives to review and modify customers’ credit status. This also includes the ability to change, cancel, and hold customer orders. Credit Management uses the Web to allow real-time updates. Credit Management and core Aspen Fleet Optimizer applications run from a single... |
Problem Statement: How to submit an upgrade request. | Solution: 1.Go to https://esupport.aspentech.com/
2.Login to your Support Center account
3. Select Support menu in the top bar
4.Click on Order Upgrades under the Software Services section
5.Complete the form and Submit
A case will be created and a Customer Care Specialist will review your request
FA... |
Problem Statement: Do you have any tips on troubleshooting column convergence? | Solution: Attached you will find a document which can be useful for practical troubleshooting of column convergence. This document provides tips for troubleshooting the I/O solver and was originally created for use with Hysim, but the content extends to the HYSYS column.
Keywords: Column, Troubleshooting, Convergence
R... |
Problem Statement: DMC3 builder allows to use Pseudoramp variables as it used to be in DMCplus builder. However, the way these variables can be declarer change from the legacy version. | Solution: 1.- From the Controller tab, select the Cases folder under master model. Then select All Variables.
2.-On the Variables View Select the CV that is going to be set as a Pseudoramp. Then click Edit and the Variable Type window will pop-up. In this Window select stability as Ramp. This will allow us further to ... |
Problem Statement: When opening the printed documentation and clicking on the help links for other documents, nothing happens and unable to access the help documentations. For example: Aspen Economic Evaluation V12 Printed Documentation.
This is occurring because the PDF documentation is opening in a Browser PDF Rea... | Solution: Set the default application, for opening PDF files, to the Adobe PDF reader desktop application.
Keywords: Printed Documentation
Aspen Capital Cost Estimator
PDF
Help Documentation
User Guide
References: None |
Problem Statement: What are the key concepts and main troubleshooting tips and best practices when using Aspen HYSYS Dynamics? | Solution: A. Steady State Backup File.
Always save a copy of the steady state simulation file you will use to depart from steady state to dynamic mode, so whether something goes wrong or if any change(s) need(s) to be made in steady state, you can start off again from the same steady state file. Going back from dynami... |
Problem Statement: What can I do to avoid inaccuracies in the flare network solution when using rated flow for tailpipes? | Solution: We understand that API has guidance on sizing tailpipes based on rated flow, but this should not be done at all in the flare network if rated flow and mass (design) flow are very different. Only if there is a small difference between mass (design) flow and rated flow, then rated flow for tailpipes can be used... |
Problem Statement: License log files are created in the APC online and AspenWatch servers to detail the licensing procedure of various APC processes. | Solution: For an APC online server, the licensing log can be found at C:\ProgramData\AspenTech\APC\Online\sys\etc/APCOnlinelicensing.log for DMCplus, DMC3 controllers running under ACO-based platform. IQ applications licensing log can also be found in the same file.
For RTE applications, the licensing log is found at ... |
Problem Statement: What's the difference between HC Dew Point and Water Dew point? | Solution: The dew point is the temperature at a given pressure at which the first drop of liquid starts to form. Hydrocarbon and water dew points indicate the type of liquid formed.
In HYSYS, the dew point is calculated by using a flash to calculate the temperature at which the vapour fraction is equal to one. When t... |
Problem Statement: How to setup reciprocating pump or positive displacement pump in Aspen HYSYS? | Solution: A positive displacement pump can be modeled using a pump [with or without characteristic curve], valve and transfer function. In reality, the flow and pressure of a positive displacement pump trend as a pulse. Please refer to attached case file where a 2nd order sine wave transfer function disturbance is sele... |
Problem Statement: Why does Aspen HYSYS ignore bulk olefin only content in petroleum assay input? | Solution: In V9, Aspen HYSYS cannot estimate olefin distribution curve from bulk olefin only. You need to enter olefin for at least three constituent cuts.
Then after characterization, you can see olefin content is populated:
But there are additional known issues in V9:
- Olefins are not part of PNA balance. that i... |
Problem Statement: How do I add and then view/modify Heat Stable Salts in an amine-based Acid Gas Cleaning process? | Solution: After selecting “Acid Gas – Chemical Solvents” as the Property Package, return to the Component List and click the “Add Heat Stable Salts” button
A series of reactions will be generated in the Reactions folder
Return to the Simulation Environment and open the Lean Amine Stream
Go to the Composi... |
Problem Statement: This Knowledge Base article provides troubleshooting steps to resolve problems with HPT Search results in V8.0. | Solution: HPT Search General Troubleshooting Tips
HPT Search contains the following modules: Search Engine (SOLR in Tomcat), Tag Publishing (DispatchService in IIS), and Search Query.
To troubleshoot problems with HPT Search, please follow the steps below:
1. Make sure TOMCAT7 service is running. If it can’t be sta... |
Problem Statement: Aspen SQLplus Query Writer 에서 InfoPlus.21 history 내용을 읽을때 아래와 같은 오류 발생 | Solution: 본 오류는 읽는 fileset 의 복구가 필요하기 때문입니다.
1. CMD 프롬프트 실행
2. 아래와 같은 명령어로 경로 변경
V7.1보다 낡은 버전,
cd %h21%/bin
V7.1 과 V7.1 이후 버전
cd <Installation Drive>:\Program Files\AspenTech\InfoPlus.21\c21\h21\bin
3. History check utility 실행, H21ARCCK.
h21arcck -r <repository name> -a <fileset number> -d -o -b
주: Repository... |
Problem Statement: Starting with aspenONE Process Explorer (A1PE) V8.8.1, a variety of plots are available that allow users to add comments and annotations to the plot and store them in the Aspen InfoPlus.21 (IP.21) database. This requires that either the IP.21 server be running on V8.8.1 or If using IP.21 versions pri... | Solution: A new definition record called "IP_CommentDef" is introduced in V8.8.1 to store comments and events added by users to the event plots in A1PE.. These comments can be added to KPIs, SPC charts, Trend charts and Event plots, but the comments will not function or get saved to IP.21 when connecting to IP.21 datab... |
Problem Statement: When publishing an Aspen IP.21 Browser Graphic Studio project to aspenONE Process Explorer not all of the folders are created in the ProcessExplorer publish path and the process ends abruptly with the curious error dialog:
Cannot create directory <C:\inetpub\wwwroot\AspenTech\ProcessExplorer\Files\Pu... | Solution: The problem can be caused by project graphic references to files that have been either deleted or renamed. You must go through all the Display Items and attempt to Edit Graphic to see where the problem lies:
You are likely to find that at least one of the Display Items has a reference to a file that does not ... |
Problem Statement: How to upgrade an Aspen InfoPlus21 snapshot (.SNP) file. | Solution: Upgrading a Snapshot file is the step taken after Aspen InfoPlus.21 family of products are upgraded. In other words, we should run a utility that creates a new database snapshot from an older, previously saved database snapshot. The new database snapshot will have records with an internal structure that is re... |
Problem Statement: When trending in Aspen Process Explorer in the Aspen InfoPlus.21 server, getting the following error message shown in the screenshot below. | Solution: Below detailed the troubleshooting steps to be taken.
1. Browse to C:\Program Files (x86)\AspenTech\ProcessData in Windows Explorer
2. Double-click on ProcessDataAdministrator.exe to launch the Aspen Process Data Administratror
3. Select the data source from the drop-down list in Data Sources tab.... |
Problem Statement: How to close HYSYS case using VBA? | Solution: We will discuss two methods to close HYSYS case using VBA:
METHOD 1.
Normally, user can close HYSYS application by executing the following codes. The code will be triggered when the scripted macro button "CloseSimulation" is clicked:
Private Sub cmd_CloseSimulation_Click()
Dim Response As String
On E... |
Problem Statement: The TFREEZE property gives an error message ''ERRORS ENCOUNTERED IN CALCULATION OF SOLID PURE COMPONENT PROPS USING'' when using the Vapor-Liquid-Liquid system. | Solution: We recommend to upgrade the software to the latest version.
However, this workaround:
1. Open the Properties Environment and select from the Home ribbon: Retrieve Parameters.
2. Navigate to Methods | Parameters | Pure Components | REVIEW-1
3. Find the parameter DCPLS (difference between liquid and solid heat ... |
Problem Statement: How to create Overspill for a note datasheet. | Solution: First make sure that the note overspill datasheet name and template name is different than “AZ Notes Overspill Sheet.xls ” and “AZ Notes Overspill Sheet” respectively, as this feature will be included in out of the box product.
There are two main parts to create an overspill for Note datasheet:
Modify Class L... |
Problem Statement: How to import stream data from Aspen HYSYS into Aspen Flare System Analyzer | Solution: In this discussion, an Aspen HYSYS model named "Sour Water Stripper.hsc" with two product streams is used. A user can follow the next detailed instructions to import data from Aspen HYSYS.
1) Open Aspen Flare System Analyzer.
2) Create a new case or load an existing case. When creating a new case, it is not n... |
Problem Statement: User creates a new Cim-IO 'Transfer' record (Get or Put), populates it with all the relevant information, and then tries to activate it. They turn IO_Record_Processing to ON, and next they set IO_Activate? to YES. The problem is that IO_Activate? does not reset itself to NO, and the record fails to o... | Solution: The probable cause is that the Cim-IO 'Transfer' record (Get or Put) is in an UNUSABLE state and first needs to be set to USABLE.
When creating a new Transfer record, unlike a standard Analog or Discrete record, it is created as Unusable. This is because it contains a 'Record Pointer' field that points to the... |
Problem Statement: After adjusting Cim-IO variables via Cim-IO IP21 Connection Manager [CCM], or Cim-IO Interface Manager [CIM] the registry does not update as expected. | Solution: Due to updated permission requirements of Windows Operating Systems may be necessary to run any Cim-IO configuration utilities with "Run as Administrator" privileges.
Keywords: Registry update
Cim-IO variables
References: None |
Problem Statement: To ensure AspenTech IP.21 servers operate as expected alongside anti-virus/endpoint protection products this article should be adhered to.
It has been known that anti-virus/endpoint protection products may falsely block AspenTech IP.21 product files and cause the following on an Aspen IP.21 server:
p... | Solution: states both the folders and specific Aspen executable files that together must be excluded from anti-virus/endpoint protection scanning.
Solution:
1) Folders to be excluded (where existing):
.\Program Files (x86)\AspenTech\
.\Program Files (x86)\Common Files\AspenTech Shared\
.\Program Files\AspenTech\
.\P... |
Problem Statement: There are two sets of Lower and Higher heating values (LHV & HHV) available for a stream in Aspen HYSYS. What is the difference between them? | Solution: HYSYS streams are able to calculate two different sets of LHV and HHV, and each of these is calculated with a different method. The first set is calculated with the HYSYS default method as a part of the stream properties, as shown below:
In this default, HYSYS calculates the Lower ... |
Problem Statement: How can solid polymers be used in Solid Models? | Solution: Before V8.8, Component Type “Polymer” was not supported in Solid handling models. Polymer pellets could be defined under “Solid” type. If MIXCISLD sub-streams were defined and the polymer was placed in the CISOLID substream, Aspen Plus would ignore phase equilibrium involving the polymer.
Starting in V8.8, ... |
Problem Statement:
How to install Aspen Flare System Analyzer, Aspen Energy Analyzer, Aspen Simulation Workbook (ASW), and Aspen OnLine?
These products can be installed using the custom install during the installation process. The picture below is a standard install and not a custom install. Therefore, clicking the se... | Solution:
The install must start with the setup.exe located at the root of the install folder. Locate the main setup.exe, then, run the custom install option. Please follow these installation steps:
1. Open the installation media and locate the Setup.exe at the aspenONE_V10 folder and right click the Setup.exe... |
Problem Statement: Does the auto-mapping feature among process streams and equipment ports work in the ABE V10 Legacy Explorer? | Solution: The auto-mapping feature among process streams and equipment ports in ABE V10 is only available from the Web Mapper and Drawing Editor.
When creating new equipment in either the Web or Legacy Explorer, the equipment will not contain mapped ports. The only exceptions are: Pump, Compressor, Air Exchanger and Pl... |
Problem Statement: How to access individual phase properties of a stream in HYSYS from VBA? | Solution: Typically users can get overall stream properties by accessing directly the attribute associated with the property. These attributes can be found under the object class view in VBA HYSYS type library. However, the reported values associated with the attributes under the class are of the overall properties of ... |
Problem Statement: How do I request a replacement / modification / correction / consolidation for my license file? How can I obtain a new or additional license file? | Solution: There are several reasons why you want or need to request a new license file, such as:
Add a product that is missing.
Moving license file from one machine to another machine.
Change license configuration from standalone to network and vice versa.
Change license configuration from dongle to dongle-fre... |
Problem Statement: How to submit a university order | Solution: 1. Go to https://esupport.aspentech.com/
2. Select Support Menu in the top bar.
3. Click on Academic Order within the Software Services section.
4. Select Guest if you are a new user, or Login if you are a University contact with a valid role
5. Complete the form and Submit.
An Opportunity will be cr... |
Problem Statement: In Aspen Shell & Tube Exchanger version 8.4, there is a tab for opening templates.
Where do you find this option in version 8.8.2? | Solution: In Aspen Shell & Tube Exchanger V8.8.2, there are no New and Template selections because the file extension.EDT is added to the file type in the Open dialog.
You just need to locate the template file on your machine.
The default template files .EDT are located in the following directory C:\Program Files ... |
Problem Statement: I added the property Total stream cost, I input some stream prices, but after the simulation is run the row for Total stream cost was empty. Would you please tell me what to do to get the total stream cost? | Solution: You should change the calculation option for this property. By default the WET option is chosen:
The user needs to select DRY option. Please go to the Simulation environment, Stream Results, click on General Options from the Stream Summary tab to change the settings (1), open Calculation Options tab (2), s... |
Problem Statement: When saving my EDR file, an Aspen B-Jac Drawing Document is also created, which looks exactly the same from the outside as my original file. What is the purpose of this data and why is it created? | Solution: The .BJT file contains the Mechanical drawing information (this is what you see when you click on ‘All Drawings’). If this file wasn’t present when you opened a file, the Mechanical drawings would be blank and you would have to run the case to see the drawings. If you had the .BJT file, you could see the draw... |
Problem Statement: How to view the data points used by the program for constructing the plots? | Solution: Right-click on the plot and click Show as history. Raw data used for constructing the plot displayed, as shown below.
KeyWords
Plots, Raw data
Keywords: None
References: None |
Problem Statement: Frequently Asked Questions (FAQs) regarding Data Collection in APC Builder | Solution: 1. Is there any limit to the number of tags I can collect?
There is no limit to the number of tags, other than the physical hardware limits i.e. memory and CPU.
2. How can I tell if data is being collected right now?
In APC Builder, navigate to Online | Manage Data Collection and connect to the server... |
Problem Statement: What is the best procedure to structure an APC Builder Project file? | Solution: Users of the conventional Aspen DMCplus application have over the years developed and refined best practice techniques of structuring and maintaining the modeling information for each individual DMC implementation. The APC Builder interface, which is comparatively newer interface for DMC application had mult... |
Problem Statement: APC Builder (Aspen Process Controller Builder) is our new product that integrates the legacy Model, Simulate, Build, Smart Tune applications and the Collect and Extract commands.
This solution will address some tips and tricks for APC Builder projects. | Solution: · Purge the recycle bin more frequently. The recycle bin works similarly to the MS Windows recycle bin, if the bin is not purged, the "deleted" items will stay there.
· Save large datasets to the project ... |
Problem Statement: I am using the Equation Oriented Sensitivity feature to study the gains of my process for process control purposes. However, I am confused with the results I see. The results for a 1x1 case does not match the results found in a 2x2 case, where one of the independent and one of the dependent variables... | Solution: Equation-oriented sensitivity enables you to compute the sensitivity between a set of independent and dependent variables. The sensitivity is the derivative or gain between the variables. This can be very useful for analyzing flowsheet behavior or in control system design.
Note that the problem reported above... |
Problem Statement: How to specify the relative humidity of a process stream in Aspen HYSYS? | Solution: The extension "Saturate with Water" can be used to specify the relative humidity of a process stream. In the newer versions this and some other commonly used extensions are installed with Aspen HYSYS. The extensions are available in the Custom group of Object Palette.
In the Saturate with Water extension, you... |
Problem Statement: Example of how to calculate the erosion velocity | Solution: In the Aspen HYSYS file you can find an example of how to calculate the erosion velocity using a spreadsheet or a user variable. This example uses the API -RP -14E equation referenced in solution 109437:
Vm = C/sqrt(rM)
where: C = a constant
rM = mixture density, lb/ft3
VM = maximum allowable mixture velocity... |
Problem Statement: Is there an example of component yields user subroutine for RYIELD block? | Solution: You can find the template of the subroutine in the folder c:\program files (x86)\AspenTech\Aspen Plus v8.8\Engine\User. The file is usryld.f.
Refer to the "user models reference guide" for detailed information. Note that the input stream vector argument SIN is not confused by the fortran compiler with the SIN... |
Problem Statement: Unable to optimize heat exchanger design, due to disparate tools for process design, thermal heat exchanger design and mechanical designs, and optimization methods followed by other heat exchanger design tools that are not based on costs | Solution: Cost based design optimization philosophy followed by Aspen Exchanger design and rating (EDR)softwares would enable you to find the optimal design for your heat exchanger needs based on cost.
The seamless integration between the thermal and mechanical design tools of Aspen EDR together with its integration wi... |
Problem Statement: Example of a DeButanizer column in Aspen HYSYS Dynamics. | Solution: The example is for a DeButanizer column to run in dynamic mode in Aspen HYSYS. There are two feed streams, each of which is a mixture of light hydrocarbons. The overhead product is a butane rich stream, and the bottom product is a mixture of heavier hydrocarbons.
The column has 15 stages. The feeds are connec... |
Problem Statement: How do I determine the Gibbs Free Energy (or other properties) of a stream? | Solution: In order to have the Gibbs Free Energy (or other properties) of streams reported, do the following:
Go to Data/Data Browser/Properties/Prop-Sets, and select New
Create a New ID property set (see Figure 1)
Figure 1. Creating a New Property Set.
In Properties tab, left click on Physical properties, and ... |
Problem Statement: How do I design an A-frame vacuum steam condenser using Aspen Air Cooled Exchanger? | Solution: This new design guide is a step by step introduction to finding the optimum design of an A-frame air-cooled exchanger for the main vacuum condenser duty of a power cycle. It shows how to use the design optimization logic of Aspen Air Cooled Exchanger to find the optimum arrangement of your exchanger and the o... |
Problem Statement: Is it possible to vary the feed stage location and the total number of stages in RadFrac in order to find the optimum feed tray location? | Solution: There are some graphical techniques ( i.e. McCabe Thiele diagram ) which are very powerful to locate the feed tray. Nevertheless, Aspen Plus is well suited to locate the optimum feed tray.
The basic idea is to minimize some objective function by perturbing the feed location. The Optimization block in Aspen Pl... |
Problem Statement: An example of reactive distillation in Aspen HYSYS | Solution: This example case simulates the synthesis of Methyl Acetate from Methanol and Acetic Acid in a catalytic distillation column. The feed conditions and composition are as follows:
Temperature 75°C (165°F)
Pressure 101.3 kPa (14.7 psia)
Molar Flow 45 kgmole/h (100 lbmole/hr)
Composition - ... |
Problem Statement: When a compressor compresses gas from one system at P1 and T1 to another system at P2 and T2 and stops during the maximum pressure drop case, a differential pressure is developed. After a compressor’s shutdown, the gas is trapped between the upstream and downstream pipes as a result of the check valv... | Solution: In the attached file, the activated compressors surge analysis tool in Aspen HYSYS has been used to determine the settle out pressure.
The steps taken to determine the settle out pressure are as follows:
1. Create a surge analysis for a compressor in the flowsheet.
2. Select the first template "Coole... |
Problem Statement: Potential savings on CAPEX, OPEX and Energy consumed by process plants, lost due to use of simple heat exchanger models in Aspen Plus flowsheets | Solution: Rigorous heat exchanger models incorporated in process flow sheets enhances the fidelity of the flowsheet enabling you to reduce CAPEX, OPEX and Energy consumed.
Aspen Plus enables you to develop rigorous heat exchanger models in just few clicks, from within the flowsheet.
Here we demonstrate how you can deve... |
Problem Statement: Potential savings on CAPEX, OPEX and Energy consumed by process plants, lost due to use of simple heat exchanger models in Aspen HYSYS flowsheets | Solution: Rigorous heat exchanger models incorporated in process flow sheets enhances the fidelity of the flowsheet enabling you to reduce CAPEX, OPEX and Energy consumed.
Aspen HYSYS enables you to specify rigorous heat exchanger models in just few clicks, from within the flowsheet.
Here we demonstrate how you can dev... |
Problem Statement: Modeling Vertical Tubeside Condensers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a Vertical Tubeside Condenser rating case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a cyclohexane condensation on the tube side using cooling water on the shell side. Enable rating / checking mode to ... |
Problem Statement: When using the envelope utility to calculate the curve for a stream that contains hydrogen, there will be a strange shape to the envelope PT curve. The shape returns to normal if hydrogen is removed from the stream. You could see the phenomena in the Example Case file in the attached. | Solution: It is expected that the introduction of hydrogen will cause retrograde behavior at lower temperatures, where the bubble point should rapidly rise. Since the hydrogen content is so small in the case file, we do not expect a shift in the VLE region. Although the pressure rapidly increase at lower temperature, t... |
Problem Statement: How do I import the Air Cooled exchanger fan power in Spreadsheet? | Solution: Fan power for air coolers is calculated by EDR Air Cooled and available through Aspen HYSYS. To test this:
1. Load the attached case.
2. Add a spreadsheet to the flowsheet.
3. Open the spreadsheet form, select a cell and click Add Import.
4. Select the air cooler AC-100 and wait for variables ... |
Problem Statement: Potential savings on CAPEX, OPEX and Energy consumed by process plants, lost due to use of simple heat exchanger models in Aspen Plus flowsheets | Solution: Rigorous heat exchanger models incorporated in process flow sheets enhances the fidelity of the flowsheet enabling you to reduce CAPEX, OPEX and Energy consumed.
Aspen Plus enables you to specify rigorous heat exchanger models in just few clicks, from within the flowsheet.
Here we demonstrate how you can deve... |
Problem Statement: Equations and Example Benchmark Calculations for Two Phase Orifice Sizing and vapor noise and reaction forces | Solution: The attached PDF contains a validation with hand calculations for two phase orifice sizing and vapor noise and reaction forces inside the Safety Analysis Environment. This gives two forms of the Leung Omega Methods as implemented in the Safety Analysis Environment.
1. For cases that are saturated or two-phas... |
Problem Statement: This solution added two examples for user variables to generate overall frictional and static pressure drops in a pipe segment. | Solution: The pipe segment frictional and static pressure drops are not exposed through ActiveX. Backdoor variables are required to access these parameters in the pipe segment. To find the moniker for the correct variable the values can be copied to to Excel and pasted with the link. The link should gives the moniker f... |
Problem Statement: How can I use Aspen HYSYS to model humidity in air? | Solution: In this model, we show how to compose an air mixture accurately, how to use a spreadsheet to record and dispatch process conditions, and how to calculate ambient humidity.
Air compositions are often given as volume percentage. In this model, dry air contains (by volume) 78.09% nitrogen, 20.95% oxygen, 0.93%... |
Problem Statement: Modeling Seal Water Heat Exchangers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a Seal Water cooler simulation case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a high-fouling seal water cooling application using tower water on the tube side. Enable simulation mode to evaluate actua... |
Problem Statement: Modeling Lowfin Tube Heat Exchangers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a rating case with Lowfin Tubes in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a compressed air cooling process on the shell side using water on the tube side. Enable rating / checking mode to evaluate per... |
Problem Statement: Modeling Kettle Reboilers - Gas Coolers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a Kettle Reboiler rating case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a propane reboiler in a kettle shell using process gas on the tube side. Enable rating / checking mode to evaluate performance i... |
Problem Statement: How to import to import pressure relieving devices from the HYSYS Safety Analysis environment into Aspen Flare System Analyzer? | Solution: 1. Select File | Import Sources | Aspen Plus / HYSYS Relief Valve Sources to import pressure relieving devices from the HYSYS Safety Analysis environment. The Import Aspen Plus / HYSYS Pressure Relieving Devices window appears.
2. Click Browse to open the Aspen Plus / HYSYS File For Source Data dialog... |
Problem Statement: Potential savings on CAPEX, OPEX and Energy consumed by process plants, lost due to use of simple air cooler models in Aspen HYSYS flowsheets | Solution: Rigorous air cooled heat exchanger models incorporated in process flow sheets enhances the fidelity of the flowsheet enabling you to reduce CAPEX, OPEX and Energy consumed.
Integration between Aspen EDR and Aspen HYSYS enables you to better optimize the design of air coolers, eliminate manual data transfer be... |
Problem Statement: Modeling MEG Reboilers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a MEG Reboiler rating case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a MEG Reboiler (Two units connected in Parallel) using steam as heating media. Enable rating / checking mode to evaluate performanc... |
Problem Statement: Modeling Kettle Reboilers with Customer Specified Properties & Heat Load with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a Kettle Reboiler rating case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a process reboiler in a kettle shell using low pressure steam on the tube side. Enable rating / checking mode to evaluate perfor... |
Problem Statement: OTS basic work flow with a Hysys model | Solution: This sample solution describes the basic work flow of creating a OTS project and test it with a OPC client. It starts from scratch, so it does not need project or model files. To carry on the exercise, one would need only a simulator, for this case, Hysys to be installed besides OTS itself. The step by step i... |
Problem Statement: Modeling High Pressure Gas Heaters with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a High Pressure Gas Heater design case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a high pressure gas heater in design mode using high temperature thermal fluid on the shell side. Enable design mode in... |
Problem Statement: Modeling Gas Condensers with Aspen Shell & Tube Exchanger | Solution: OBJECTIVE
The example file will enable you to setup a Gas Mixture Partial Condenser rating case in the Shell & Tube Module of the EDR program and help analyze results.
PROCESS DESCRIPTION
Model a partial condensation of gas mixture on the tube side using ethylene glycol-water mixture on the shell side. Enab... |
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