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Problem Statement: This knowledgebase solution documents how to install Microsoft SQL Express 2012. | Solution: Step 1.
To begin, launch the install program and choose the top option to install a new stand-alone installation.
Step 2.
Read and accept the license agreement and click Next. At this point you can choose the features that you want to install. You can also change the install folder if you do not want to insta... |
Problem Statement: Is it normal for both streams in a Heat Exchanger to be decreasing their temperature? | Solution: The expected behavior on a Heat Exchanger is for the cold stream to increase its temperature and the hot stream to decrease its temperature. However, it is possible to encounter scenarios where the cold stream can also be decreasing its temperature.
Thermodynamically speaking, when you are in the V+L region ... |
Problem Statement: Is it possible to customize a BLOWDOWN flowsheet to attach the depressurization line to the liquid outlet of the vessel? | Solution: Blowdown performed from the vessel bottom allows the most rapid decrease of liquid level with time, hence the interest on modeling this configuration in BLOWDOWN.
In Aspen HYSYS, the default Single Vessel template will not allow any re-location of the depressurization (Blowdown) line, this default template ... |
Problem Statement: Why do I have a zero value in the Olefins content in the feed stream of the HBED? | Solution: When you use the HBED reactor, the required component list is HCR.cml with the HCRSRK package. Given a stream with these settings to be used as feed stream of the HBED reactor, you can notice the Olefins content is always zero.
If the composition of the HBED is not manually defined, you usually get it wit... |
Problem Statement: Is it possible to report the same stream property with two or more units in the Aspen HYSYS Workbook? | Solution: Currently all the properties reported in the Aspen HYSYS workbook will always use the same units that are specified in the selected unit set, this means that if the user adds multiple times the same stream property, all the duplicates will always use the same unit.
There are two issues to solve in this situ... |
Problem Statement: Can I track the temperature profile of a Tail Pipe across its length in a BLOWDOWN scenario? | Solution: Tail Pipes in BLOWDOWN record a full temperature profile, not only for each time evaluation, but they also report the temperature profile across the pipe length. It is important to notice that even though all the pipes in a BLOWDOWN flowsheet record and report the temperature for each time step, only the tail... |
Problem Statement: Is there a minimum limit for the time step on the BLOWDOWN run controls? | Solution: The specified time step in BLOWDOWN run controls allow the user to report the conditions during the depressurization at different paces. Though there is no limit on the number of points that can be reported for long time specifications, there is a limit for the minimum time step that can be entered.
The min... |
Problem Statement: Data Reconciliation: differences between running a model with and without measurements | Solution: The Data Reconciliation run mode is used to minimize mismatch between measurements and model by adjusting model parameters and offsets and tries to obtain the best value by doing so. It distributes mismatch to among the measurements. It is a non-square case, meaning there are many degrees of freedom (specifie... |
Problem Statement: How to set the stream composition via a feeder block in steady state and dynamic mode without do the normalization every time? | Solution: Each feed stream has a Feeder Block, which is a holder for composition and conditions of the stream. This is used to make sure the stream composition and conditions are recovered after a case of flow reversal, where the stream acts as a product stream and gets its conditions and composition from the downstrea... |
Problem Statement: Can I access the variables of an Aspen Hydraulics flowsheet through VBA? | Solution: The objects inside an Aspen Hydraulics subflowsheet are not directly incorporated in the VBA libraries of Aspen HYSYS, so these objects cannot be exposed through automation as any normal object in Aspen HYSYS.
If the user wishes to access these objects using VBA, the only workaround currently available is t... |
Problem Statement: Is the user coding automatically read by AFR or do I have to specifically invoke it? | Solution: The five different subroutines are invoked by AFR at different times. The user does not have to invoke them separately as this is an automated process.
Simulation_Start / SimStart - Invoked once per simulation. All object properties and conditions are initialized according to the designed states.
Lifecycle_St... |
Problem Statement: Is it possible to use the Aspen HYSYS Simple Solid Separator in Dynamics mode? | Solution: The simple solid separator equipment has a Dynamics tab but when you access to it, you will read the message "Unable to run Dynamically at this time".
This is because currently the solid operation in Dynamics are not supported.
Keywords: Dynamics, Mode, Solid Separator.
References: None |
Problem Statement: How are the nozzle Parameters for a Heat Exchanger in Dynamics defined? | Solution: For a Dynamics Heat exchanger user can enter the nozzle parameters under Rating | Nozzles. The inputs that can be entered are described as follows:
Base Elevation Relative to Ground Level is the distance between the base of HX and the ground level. Elevation (Base) is the distance difference between the nozzl... |
Problem Statement: Why the Column Internals Holdups are different from the Rate-based Holdups? | Solution: For a rate-based packed column, the result reported for the Column Internals Liquid Holdups (Column Internals | Sections | CS-1 | Results | By Stage | Hydraulic Results) might be different from the values reported on the Rate-based Liquid Holdups (Rate-Based Modeling | Interface Profiles | Holdups)
The Co... |
Problem Statement: How do I change the default file path when clicking on Open Case in Aspen HYSYS? | Solution: When clicking on File | Open | Open Case button, Aspen HYSYS opens the default Samples folder. To change this folder, go to File | Options | Simulation | Default File Paths and change the Cases path to the desired one.
To change the path in Aspen Plus, please refer to the following article: How do I set the ... |
Problem Statement: This knowledgebase solution documents how to install Microsoft SQL Express 2012. | Solution: Step 1.
To begin, launch the install program and choose the top option to install a new stand-alone installation.
Step 2.
Read and accept the license agreement and click Next. At this point you can choose the features that you want to install. You can also change the install folder if you do not want to insta... |
Problem Statement: Is it normal for both streams in a Heat Exchanger to be decreasing their temperature? | Solution: The expected behavior on a Heat Exchanger is for the cold stream to increase its temperature and the hot stream to decrease its temperature. However, it is possible to encounter scenarios where the cold stream can also be decreasing its temperature.
Thermodynamically speaking, when you are in the V+L region ... |
Problem Statement: How to add the Aspen HYSYS’ Adjust ‘Reset’ button into Aspen Simulation Workbook (ASW)? | Solution: By design, the Adjust ‘Reset’ button is not available through the ASW Organizer. However, you can use a SendMessage action via macro to access to it:
Open an ASW workbook linked to a case that includes an Adjust block (for this example, let's call it “Adj-1”)
Place a button control onto the Excel worksheet a... |
Problem Statement: While building the model, I want to be able to check what happens if a certain equipment goes down and how that affects the rest of the model. Is there a feature that can be used for the same? | Solution: The easiest way to achieve this is using the View Active Status button with the Validate feature.
Clicking the View Active Status button opens the Operational Status window. The window lists each unit in a closeable folder containing all events associated with the unit. You can use the checkbox to change the ... |
Problem Statement: Why can I not run the FAST add-in in AFR V10 with Office 2010? | Solution: When using Office 2010 with AFR V10 you will need to download VSTO (Visual Studio Tools for Office) from the Microsoft website. The link is given below:
https://www.microsoft.com/en-us/download/details.aspx?id=48217
You will need to restart Excel after installing VSTO.
Keywords: Office 2010, VSTO
References: ... |
Problem Statement: Can I include fittings in the pipelines of my BLOWDOWN model? | Solution: In Aspen HYSYS BLOWDOWN, not all the piping items perform pressure drop calculation. Depending on the BLOWDOWN template that the user choses to load in HYSYS, some types of pipes will be able to perform this calculation.
In the normal Single Vessel template, only the “Tail Pipe” pipes can perform this calcu... |
Problem Statement: Why does Aspen Flare System Analyzer is not using the given constraints for the Tailpipes and Headers | Solution: In Aspen Flare System Analyzer, a pipe can be treated as a Tailpipe or a Header and user has the option to define different constraints for each type by clicking Scenarios | Edit and select the Constraints Tab.
If the user wants to treat a pipe as a tailpipe, the Yes option must be selected in the Tailpipe dr... |
Problem Statement: How can I rearrange the columns in the Flare Analyzer Pressure/Flow Summary? | Solution: You can left-mouse-click a column header, then (holding down the left mouse button) drag the column to a different location (example screenshots below):
Before:
After:
Keywords: None
References: None |
Problem Statement: Why the heat transfer area calculated by the Activated Energy Analysis is different from the one reported on Aspen HYSYS and Aspen Plus? | Solution: The total heat transferred (Heat Exchanger duty) can be defined in terms of the overall heat transfer coefficient, the area available for heat exchange, and the log mean temperature difference:
Where:
Q = total duty of the heat exchanger
U = overall heat transfer coefficient
A = heat transfer area of the he... |
Problem Statement: Is it possible to open my HYSIM files in Aspen HYSYS V8.6 and upwards? | Solution: Since V7.3 the option to open .sim cases was removed therefore you don't have the option to open these files in newer versions of HYSYS. The only alternative is to open the HYSIM case in older versions (for example V7.2) and save the case as .hsc. However, older versions are no longer supported and there's no... |
Problem Statement: When running the Activated Exchanger Design and Rating (EDR) tool within Aspen Plus, the simulation stops converging and the user gets the following message on the Control Panel:
ERROR WHILE GENERATING RESULTS FOR UNIT OPERATION BLOCK: “xxx” (MODEL: “HEATX”)
FAILED TO ACCESS SECURITY LICENSE FOR SHE... | Solution: This license error message may appear due to various reasons:
The user does not have enough tokens to run both Aspen Plus and Aspen EDR at the same time
The Aspen EDR license key is not available on the license server
The license server is not reachable or not running
Detailed steps on how to resolve the lic... |
Problem Statement: Why do I get the message "Error whist checking out license, this may be due to a time-restriction on the license"? | Solution: The error you are getting means your license has expired. To verify if your license has expired please follow the simple steps mentioned below:
Step 1: Locate a copy of your license file.
Step 2: Open your license file in a text editor like Notepad.
Step 3: Check the date of expiration in the file. Example s... |
Problem Statement: How to get error messages from DMCplus Collect logged in Valid.err. | Solution: In DMCplus Collect, if the data collection has an error due to tag validation then it is possible to record this error in valid.err file. The following steps show how to enable this feature -
1) Click on My Computer/Properties
2) Navigate to Environment Variables - Add system variable name as ACOD_HOME
3) ... |
Problem Statement: In Aspen Plus, why doesn’t liquid heat capacity change with temperature when utilizing the NRTL property method? Plotting liquid heat capacity vs. temperature in the Properties environment does not reflect temperature dependence. | Solution: The NRTL property method does not, by default, utilize liquid heat capacity parameters (this can be deduced by examining the Route Details for the HLMX liquid mixture enthalpy property):
By default, the NRTL method indirectly back-calculates liquid heat capacity, from liquid enthalpy. If the user wants t... |
Problem Statement: When “Use Multi-Processing” option is turned on while running a model with PIMS AO Multi-Start, it is observed that sometime the OBJFN could be different in each run. Why is this happening? | Solution: This is by designed. If you are running model with multi-processing turned ON, and if you have # trial points (# starting points) >= # processors, the run is non-deterministic, i.e., the results may change with each run.
The fact is that when we use “Use Multi-Processing” to run Multi-Start, the input soluti... |
Problem Statement: When starting to use any feature from Plant Data, nothing happens for a while, and then any of these messages appears:
No connection could be made because the target machine actively refused it
An existing connection was forcibly closed by the remote host | Solution: The Aspen OnLine service is not running. Use this procedure to start the service and set it for automatic start:
Using an account with administrative privileges, open the Control Panel. Search for Services and run it.
In the Name column, locate and click Aspen OnLineVX.X.
In the Status column in this row, the... |
Problem Statement: In the Safety Analysis environment, is it possible to change the actual standards used by HYSYS to calculate a Rupture Disk area? | Solution: Aspen HYSYS uses the Coefficient of Discharge (Kd) Method Calculation based on the API 520 and Fike Form No. TB8102-3. Aspen HYSYS uses these standards because they are the most common ones used.
Unfortunately, it is not possible to change these standards in Aspen HYSYS. Users could use a spreadsheet and add... |
Problem Statement: When sizing a shell and tube exchanger, you might see a warning message showing that "Operation Warning 1346: The shell side liquid-only outlet nozzle is not self venting". What does this warning message mean? How to eliminate this warning? Are there any resources that help explain "self-venting" sys... | Solution: You can try to increase the shell side liquid-only outlet nozzle size to get rid of this warning message. Please go to Exchanger Geometry > Nozzles > Shell Side Nozzles and modify the liquid outlet nozzle diameter (screen shot is showed below).
Note 1: Please review these two papers FP3: Gravity Flow and FM... |
Problem Statement: When I change the decimal digits for Mass Flow in the Variable Formats Dialog, the Mass Flow label on the flowsheet still shows only one decimal digit. Why? | Solution: Since Aspen Flare System Analyzer V9.0, the Mass Flow label is limited to show only once decimal digit regardless of the changes made on the Variable Formats Dialog (File | Preferences | Formatting | Edit Variable Formats | Result | Mass Flow).
However, even though the Mass Flow label on the flowsheet will sh... |
Problem Statement: Differences with solids-handling in Aspen Batch Modeler V10 | Solution: In V10, there are differences on how Aspen Batch Modeler performs physical properties calculations when there are solids involded, compared to previous versions.
These modifications can cause that older files opened in V10, behave in a different way and provide different results.
This is a list of the exi... |
Problem Statement: How do I know if my Aspen HYSYS simulation is in Steady State or Dynamics? | Solution: A straightforward way to identify the type of simulation you have is reviewing the Dynamics tab on the HYSYS ribbon. When you have a Dynamics simulation, the Dynamics Mode button must be highlighted and the Run controls will show active.
If the Dynamics Mode is inactive, you have a Steady State simulation... |
Problem Statement: This knowledge base article describes on how to display time in dd:hh:mm format in SCM. | Solution: Consider time = 114.7488 hrs , the logic below Rule RTEMP displays it as 4:01:02 (dd:hh:mm)
RULE
Trace of RTEMP
The below trace explains the step by step execution of RTEMP by SCM to display 114.7488 hrs as 4:01:02 .
>RTEMP1
==> Rule started >RTEMP1
RTEMP TRUE IF: ?DAY = 4.781200 = [?DEC... |
Problem Statement: Which property method is recommended to model dehydration process using glycols (MEG, DEG, TEG)? | Solution: We recommend users to use the improved Cubic- Plus- Association (CPA) package to model MEG, DEG and TEG dehydration processes starting V10.0. The Aspen HYSYS V10.0 CPA package includes updated validated parameters that cover a broader range of components and operating conditions. You can continue to use the G... |
Problem Statement: Does an expansion in a pipe segment can affect the Mach number calculation in Aspen Flare System Analyzer? | Solution: In Aspen Flare System Analyzer (AFSA), as mentioned in the Article ID 000032070 the mach number is defined as the fluid velocity between the sonic velocity or:
If the customer add a drastic expansion between two pipes, this expansion will generate a considerable change in the pressure and the density (Pressur... |
Problem Statement: Is possible to use the Antoine Parameters for the simple Antoine Equation within Aspen Plus?
P = Pressure
T= Temperature
A,B,C = Simple Antoine Parameters | Solution: The Aspen Physical Property System uses the Extended Antoine Equation:
P = Pressure
T= Temperature
Cn = Extended Antoine Parameters
Although it’s not possible to apply the Simple Antoine Equation, we can adjust its parameters to be used on the Extended model with the following considerations:
Since the comm... |
Problem Statement: How can you select the reaction set required for the acid gas absorber in Advanced Modelling option? | Solution: For the Acid Gas examples in Aspen HYSYS 3 sets of reactions are created automatically by the Acid Gas fluid package.
If the calculation type is changed to Advanced Modelling, then you need to select the reaction set to use.
The recommendation to select the reaction is:
Set-1: Used for Absorber or Liqui... |
Problem Statement: Every time I close the VSTA window there is a significant time lag before I can resume working on the AFR model. Can I save changes to the VSTA code/ AFR model without closing the VSTA window every time? | Solution: The time lag after closing VSTA is caused on the VSTA side and isn't really an AFR issue. As an alternative it is recommended to keep the VSTA window open while working on the AFR model. Ensure that you save any changes before running the model. Remember, if you click on the save button on the AFR window it a... |
Problem Statement: Can I access column tray be tray physical and transport properties using Automation? | Solution: The attached Excel spreadsheet illustrates how to do this (try using the sample case “Atmospheric Crude Tower.hsc” sample case located under C:\Program Files (x86)\AspenTech\Aspen HYSYS VX.X\Samples to test the spreadsheet).
It obtains the following tray by tray properties for a selected column:
Actual and... |
Problem Statement: Are the quality lines on the phase envelope on a molar or volumetric basis? | Solution: Like vapour fraction, the quality lines on the phase envelope are on a molar basis. The property table could be used to determine these values on a volumetric basis.
Keywords: Phase Envelope, Quality Lines, Molar Basis.
References: None |
Problem Statement: How do I change the format (font, font style, size and colour) of all the PFD Tables in an Aspen HYSYS model? | Solution: You can modify the default format of the PDF Tables by changing the default Preferences.
To change the tables colour, go to File | Options | Resources Options | Colour Options. Search the PFD Table option and click on Select Custom Colour as shown below.
To change the font, scroll down in the same location to... |
Problem Statement: What is the PSV Kb factor and when to use it in Aspen Flare System Analyzer? | Solution: In Aspen Flare System Analyzer (AFSA), the user can define the back pressure correction factor (Kb) in the Methods tab of the PSV.
The back pressure is defined as a pressure existing at PSV’s outlet. It impacts to opening pressure, reduction capacity, instability or may combination of all. Kb is required f... |
Problem Statement: What are the equations involved in the tube bundle used in dynamic mode? | Solution: Vessel Liquid U, Vessel Vapor U, Tube Liquid U, Tube Vapor U are values specified by the user.
Once user provides these values, we calculate Shell (Vessel) U, Tube U, and overall UA using equations below (the 4 variables above are highlited bold in the equations):
BundleHeight% = BundleHeight / VesselHeight... |
Problem Statement: What is the Catalyst Inventory value that must be included in the FCC Catalyst Activity? | Solution: The Catalyst Inventory value can be entered in the FCC simulation environment under Reactor Section tab | Catalyst Activity.
The same value can be found in the calibration environment under Catalyst tab | Activity.
You should enter the total catalyst inventory that would include both, the regenerator and the ... |
Problem Statement: The Activated Economics Evaluation is not supported in V10 while working with the DBR Amines property package, using it could lead to a crash/freeze. | Solution: Update the DBR Amines package to the new Acid Gas package to use the Activated Economics Evaluation.
Keywords: Activated Economics, DBR Amines, Crash, Freeze.
References: None |
Problem Statement: What are the different components of the license files? | Solution: To find out what are the different components that a license file contains, right click on the license file and select Open with Notepad. The different components will be displayed on Notepad, it might be confusing to extract information out of it, but once the components are broken down, it will be much easi... |
Problem Statement:
The user installed AFR V10, then updated with the latest patches. The user then installed Visual Studio 2015. However, when the user tried to open the VSTA IDE from within AFR V10 (via the Write Key Routines ribbon button) then IDE would not open. No error message was given, AFR V10 would not do any... | Solution:
You will first need to check if you have VSTA 2015 runtime binaries installed. Open “Program and Features” window and look for “Microsoft Visual Studio Tools for Applications 2015”. If it is not listed then you'll have to manually install it as described in the steps below. In case you have it installed, ple... |
Problem Statement: How can I enter the orifice area of the second vapour relief valve in the depressuring utility? | Solution: To know the workflow of specifying two vapour PRD’s in the depressuring utility, please consult KB Article 030716 ‘How can I specify two vapour relief valves in the depressuring utility?’.
To enter the orifice area for the second vapour relief valve, use the 'General' flow equation for the liquid valve to sp... |
Problem Statement: Can Aspen HYSYS predict weeping in tray sections? | Solution: Yes, Aspen HYSYS predicts weeping as soon as the dry hole pressure drop through the tray becomes too small.
For further details please review the Article 30780.
Since V9.0, you could also use the Column Internals Analysis tool to predict weeping. Please refer to Article ID 44581.
Keywords: Weeping, Tray Secti... |
Problem Statement: Does Aspen HYSYS include Kinetic Hydrate Inhibitors in the Hydrate Formation Analysis? | Solution: The Kinetic Hydrate Inhibitors are polymers and/or copolymers that are not supported at the moment in Aspen HYSYS.
In V10.0 the inhibitors that are supported in the Hydrate Formation Analysis are:
Methanol
Ethylene glycol
Diethylene glycol
Triethylene glycol
AspenTech is currently investigating the feasibilit... |
Problem Statement: Why is the Real Time factor significantly affected by the Pressure Flow Model selected in the Relief Valve? | Solution: In a Dynamics simulation, the Real Time factor is calculated by dividing a time interval for a case by the actual time required time required by HYSYS to simulate that time interval. This factor depends on the computer’s processing speed and the complexity of the simulation case. This factor is displayed on t... |
Problem Statement: Estimation of the Twu alpha function parameters (L, M and N) in Aspen Plus.
Using the Twu alpha function improves the accuracy of the vapor-prediction from an equation of state. The alpha function is a function of the acentric factor at a constant reduced temperature. It is recognised as the best alp... | Solution: To estimate the twu alpha function parameters, some input information is needed in terms of the specific equation of state used. For this case, the Soave-Redlich-Kwong (SRK) is used
1.In Methods|Specifications, select SRK and in the free water method, select STEAMNBS.
2. In Methods|Selected Methods|SRK|Model... |
Problem Statement: This knowledge base article describes on how to launch URL from Aspen ONE SCM | Solution: SYS CMD /C start "" <url>
This will open the site, but a windows command prompt will open for a split second
Write batch file with this:
Start "" %1
call SYS C:\BatchFile.BAT <url>
Keywords: None
References: None |
Problem Statement: Why is the initial pressure in my batch tank near vacuum when it should be higher? | Solution: When providing specifications for a dynamic simulation (batch operations run in dynamic mode), we need to be very careful with the initial conditions.
When it comes to pressure, we need to make sure there is some vapor/gas inside the tank at time t=0, otherwise initial pressure will be near vacuum. When onl... |
Problem Statement: When extracting logs files from the event viewer, depending on the amount of time one is collecting the files may come out too big, making difficult to transfer them and even search for the information needed. | Solution: To extract application and system logs with an specific time frame do the following:
Go to Windows Start Menu and Look for Events Viewer
On the left tree Extend Windows Logs and select Application or System depending on the type of log you need.
Select events from the list around the time the issue occurred... |
Problem Statement: I have several pipes in my model. Is there a way to automatically give logical names to pipes in the model? | Solution: Since most models have multiple pipes it becomes cumbersome to name each pipe. To reduce user effort, there is a 'Auto-name' option available in the RAM Data section. Navigate to the RAM Data environment and click on the Pipes folder. Select the pipes you want to auto name as shown in the screenshot (Auto nam... |
Problem Statement: What are the additional files need to be embedded to run modeler cases into OTS? | Solution: Aspen modeler products require aspen properties file and/or any .dll files containing subroutines. These files can be included in OTS by clicking the Additional Files button. This shows a list of any files already added and lets you add or remove items from this list. These files will be stored in the .aots f... |
Problem Statement: This knowledge base article describes on System tuning for transferring data to/from SQL server. | Solution: To set Max server memory on the server if it is a virtual machine, do the following in the Virtual Machine Setting dialog box:
Specify the appropriate amount of memory.
Clear Enable Dynamic Memory.
Next, change the Power Plan from Balanced to High Performance. Refer to the following link for details:
https:... |
Problem Statement: Using cas2dat and dat2cas utilities in SCM V10.0 | Solution: Cas2dat and dat2cas utilities are not supported with configured Applications(CAPS) . These utilities would work only for old legacy MIMI cases.
Keywords: None
References: None |
Problem Statement: How to connect a workstation to use the Aspen Properties Enterprise Database (APED) V9 or V10 on another computer | Solution: On the client computer, go to Start | Programs | Aspen Properties | Database Manager – Aspen Properties
Databases must be registered before they can be used by programs on your computer such as Aspen Plus or Aspen HYSYS., first remove existing databases by right clicking each and selecting Delete Database ... |
Problem Statement: How can a flowsheet be optimized using sequential modular mode? | Solution: Attached is an example of how to optimize the operating margin for a simple flowsheet.
See file Optimiz2-V73.bkp. This file will run in V7.3 and higher.
The value of a process is calculated as the value of the product and the byproduct, minus the cost of the raw material, and minus the cost of steam for the ... |
Problem Statement: I am getting an Input Error in AFR V10. Is there any way AFR can display the cause of the error? | Solution: In AFR V10 CP3 (Cumulative Patch 3), we introduced a new feature in the Message Panel to list the Errors, Warnings and Model Status updates as shown in attached screenshot. Navigate to to the View ribbon tab and click on Message Panel to see the results. The Message Panel will list the Unit ID and the cause o... |
Problem Statement:
Can I access HYSYS Reactions using OLE? | Solution: The following Excel VBA code illustrates how to:
· Access / Add Reactions
· Manipulate Reactions (eg. conversion)
· Access / Add Reaction Sets
· Manipulate Reaction sets - setting which reactions are active etc.
· It is designed to work with the "C-4.hsc" HYSYS sample case.... |
Problem Statement: When entering a constant temperature or pressure for Pure Component or Mixture Data on the Data | Setup sheet used for data regression, what standard deviation is used? | Solution: For user specified constant temperature or pressure data on the Data form, the default standard deviation (std-dev) of 0.1 for Temperature (T) and 0.1% for Pressure (P) is used. The standard deviation of these data is NOT zero; therefore it is indeed part of the objective function for a regression case.
Key... |
Problem Statement: When you have an Aspen HYSYS Oil Manager Assay and would like to convert it to Petroleum Assay Manager, the below message may appear: | Solution: As the message states, the Petroleum Assays require distillation data in either TBP, D86, D2887 or D116 format to be imported from the Oil Manager Environment.
In these cases, the user must check that the Assay Data Type used on the Oil Manager is on the formats mentioned above. The Equilibrium Flash Vaporiza... |
Problem Statement:
The user installs Visual Studio after installing AFR V10. When this installation order occurs, AFR V10 will not be able to open the IDE. The “Write Key Routines” ribbon button will be disabled. | Solution:
When the “Write Key Routines” ribbon button is disabled, it is a clear indication that the above installation order has been followed. This is due to the fact that when Visual Studio is installed, “Microsoft Visual Studio Tools for Applications 2015” (installed by the AFR V10 installer) is not aware of this ... |
Problem Statement: This knowledge base article describes on how to import a .txt file into SCM table. | Solution: To import a .txt file into SCM follow the below steps.
Step 1: Add the name of the table as entry to the set IMPITEMS.
Step 2: Enter description in USENGLISH and UKENGLISH columns in the set IMPLNG.
Step 3: Specify a group name in IMPGRPS.
Step 4: Enter 1 in the ALL column and the group column in IMPMAP.
Step... |
Problem Statement: What are the types of files saved inside a single OTS case? | Solution: The following are the types of files generally saved inside single OTS case (.aots extension):
One or Multiple dynamic simulation cases (HYSYS Dynamics/Aspen Plus Dynamics)
A configuration file which stores simulation case names, streams, control signal connections and tags.
Any saved snapshots
Key Words
OTS,... |
Problem Statement: How to change the correlations used in properties estimation for Hypothetical components | Solution: When create a hypothetical component, and estimate certain properties, some correlations are used by default. However, you have the option to change the methods as desired.
To see the correlations used and change them if needed, please go to the Home tab in the Properties Environment and select the Hypoth... |
Problem Statement: What is the Purpose of “” option in Blend Optimization Dialog Box in MBO ? | Solution: Running Gauge Comp Tanks , feature is used to account additional VOLUME of Components generated [or] VOLUME of Component being received during the Blend operation and that VOLUME will be accounted for Blend Optimization process.
In Detail,
Consider a situation, where REF1 ( REFORMATE ) coming from Unit an... |
Problem Statement: How to change Aspen Modeler controller set point from OTS? | Solution: If the controller set point is “Auto” or “Manual”, then it cannot be changed during simulation run from Aspen OTS Framework or the OPC client. Please make sure PID controller is set to "Cascade" mode shown below:
Key Words
OTS, PID, OPC, Cascade
Keywords: None
References: None |
Problem Statement: What is the definition for the TEMA Sheet Tube Number in Aspen Exchange and Design Rating (EDR)? | Solution: In Aspen EDR, for a U-tube exchanger, the number of tubes is defined as the total number of holes in the tube sheet i.e. twice the number of actual U-tubes. In other words, a U-tube is counted as two-tubes, so the tube count still gives the total number of holes in the tubesheet.
The number of U-tubes on the... |
Problem Statement: This knowledge base article describes about List Scheduler in Aspen Plant Scheduler. | Solution: List Scheduler is an alternative for Gantt chart in tabular format located under the Format tab of Aspen Plant Scheduler V10.0.
Colors of activities in List Scheduler match the Planning Board coloring scheme. List Scheduler can be docked next to the Planning Board and can be made in synch with the Planning Bo... |
Problem Statement: ERROR: "[Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application" | Solution: To resolve the error , select a DSN that is created using a 32-bit ODBC driver in the 32-bit Administrator.
A 32-bit ODBC DSN can be created on Windows 64-bit as follows:
Go to Start > Run.
Type C:\windows\syswow64\odbcad32.exe
Click OK.
Click Add
Select the ODBC driver from the list.
Configure the DSN.
Keywo... |
Problem Statement: What network security settings are required to access AspenTech web content or receive email from AspenTech? | Solution: AspenTech content like the AspenTech website, software or patch downloads, or email may be blocked by your company's network security policies and may require changes in firewall and email configuration to allow you access.
To access AspenTech web content, your IT group may need to grant access to the follow... |
Problem Statement:
The user attempts to open the VSTA IDE via the “Write Key Routines” ribbon button. This will usually crash AFR V10 without writing anything to the log file (more common with files that are not new). If the user tries to create a new file, a system exception error is thrown and then crashes AFR V10. | Solution:
Following are the steps for troubleshooting:
1) Check that Visual Studio is installed
2) Check that Microsoft Visual Studio Tools for Applications is installed
3) Open Visual Studio (not from within AFR V10) and make that it is licensed properly.
The above always occurs if the user did not fully li... |
Problem Statement: How to increase the significant digits shown in Aspen Flare System Analyzer for phase properties results. | Solution: In Aspen Flare System Analyzer, you can edit and show less or more digits for any calculated property in the results forms. This solution shows how to control the digits in the Results | Physical Properties section. These properties include Viscosity, Density, Thermal conductivity, Surface tension and some ot... |
Problem Statement: The DLL Mtell.Sensor.Common is missing from the following folders:
C:\Program Files\AspenTech\Aspen Mtell\Mtell Agent Service
C:\Program Files\AspenTech\Aspen Mtell\Training Service
C:\Program Files\AspenTech\Aspen Mtell\Suite\Watch Dog Service
C:\Program Files\AspenTech\Aspen Mtell\Suite\Retry Servi... | Solution: 1. Stop the Mtell Windows services first. You can do this either using the Task Manager or the Service Console. The Mtell Windows services include the following:
Aspen Mtell Agent Service
Aspen Mtell API Service
Aspen Mtell Asset Sync
Aspen Mtell Message Retry Service
Aspen Mtell Reporting Service
Aspen Mtell... |
Problem Statement: How can I delete a Personal Workspace in Aspen Basic Engineering V10? | Solution: 1. Close out of any application that is connected to the workspace.
2. Navigate to C:\AspenZyqadServer\Basic Engineering19.1\Workspaces and locate the folder name corresponding to the workspace and delete it.
3. Open Workspaces.lst (located in the same folder) with a text editor such as Notepad. Erase the... |
Problem Statement: How Heat Exchangers costs are calculated in Aspen Shell & Tube Heat Exchanger (EDR) program? | Solution: The three elements of the Exchanger Cost are:
Material Cost
The material costs are determined component by component using the material prices from the material database and the rough dimensions calculated as part of the mechanical design. The material prices can be changed to suit the local market conditions... |
Problem Statement: Why if I run a design case in Aspen Shell & Tube Exchanger V10 I get different geometry results than if I run it in previous versions? | Solution: In versions prior to V10, the final design is selected based on the Optimization Algorithm you have selected, which could be for minimum cost or minimum area.
In V10 there is a new improved design algorithm to find the cheapest exchanger with no operational issues concerning:
Vibration
Thermosiphon Instabilit... |
Problem Statement: Where do I map the materials and components imported from SP3D to ACCE? | Solution: Since V9 of Aspen Capital Cost Estimator a new workflow has been added to let users modify the mapping codes or add new codes used in the SP3D Import feature.
The workflow uses an Excel file which behaves in a similar way to the existing customer external library files. By default, it contains the table of c... |
Problem Statement: This knowledge base article provides a sample XML for PropertiesGrid Configuration | Solution: <?xml version="1.0" encoding="utf-8"?>
<CONFIG>
<START
Header="Model Parameters"
ViewModelID=":START_VM">
<PrimaryView
Type="PropertiesGrid">
<PropertyGroups>
<Group1>
<Properties>
<Item
Caption="ModelParameters"
Property="DATA1"/>
... |
Problem Statement: How to solve an Enthalpy Consistency Error in a Component Splitter? | Solution: The component Splitter separates a feed stream into two material streams based on the parameters and split fractions that you specify. Once the composition, vapor fraction, and pressure of the outlet streams are known, a P-VF flash is performed to obtain the temperatures and heat flows.
Under certain circumst... |
Problem Statement: What are the requirements to use a Black Oil PIPESIM case with a PIPESIM Net block? | Solution: To use a Black Oil PIPESIM case, you must select a Neotec Black Oil COMThermo fluid package first. This package will require a Neotec Black Oil license, which is provided by Schlumberger.
This is not required when working with a compositional PIPESIM case.
Keywords: .bpn, extension
References: None |
Problem Statement: How can I delete a Personal Workspace in Aspen Basic Engineering V10? | Solution: 1. Close out of any application that is connected to the workspace.
2. Navigate to C:\AspenZyqadServer\Basic Engineering19.1\Workspaces and locate the folder name corresponding to the workspace and delete it.
3. Open Workspaces.lst (located in the same folder) with a text editor such as Notepad. Erase the... |
Problem Statement: This knowledge base article describes on how to call a stored procedure in Informatica. | Solution: Edit the map using Designer and add the transformation.
Menu item Transformation> Create Transformation> Stored Procedure
Import the definition from the database using the database connection or skip. If you skip it comes in empty.
Give it a name SP_NAME_PROD_RATE_HIST.
Double click on trans... |
Problem Statement: When the system is in supercritical region, depressuring calculation may fail. The system is supercritical, and various property packages struggle with supercritical fluids. Hysys property packages do not handle supercritical fluids well. For depressurization calculation to occur, there must be "vapo... | Solution: 1) Set the stream temperature to -20 F -- the ambient temperature represents the lowest possible temperature at which depressuring could begin. Also it is a potentially reasonable assumption in the event that the pipeline is depressured after some amount of time and the inventory has had time to equilibrate w... |
Problem Statement: How do I create a strip chart for a variable for all the streams in the simulation? | Solution: In the newer Aspen HYSYS versions (from V8.2) the user can add a variable to a strip chart directly from the stream or for all the streams in the simulation from the Workbook.
For a stream, the user can select the variable, apply right mouse click and then send the variable to strip chart. If the strip chart ... |
Problem Statement: Can I password protect my APEA project? | Solution: No, this functionality has been only implemented for Aspen Capital Cost Estimator.
Users will not be able to set, change, or remove a project password in APEA. However, APEA will prompt the user for the password if a user opens a password protected ACCE project in either APEA.
Keywords: Password, APEA, Proje... |
Problem Statement: This knowledge base article shows a sample configuration for Layout Grid in XML. | Solution: <?xml version="1.0" encoding="utf-8"?>
<CONFIG>
<START
Header="Model Parameters"
ViewModelID=":START_VM">
<View
Type="LayoutGrid"
Rows="auto,auto"
Columns="auto,auto">
<Views>
<LABEL1
Row="0"
Column="0"
Type="PropertyView"
Editor="La... |
Problem Statement: What is the reference used for the thermal conductivity values in the pipe segment? | Solution: In the pipe segment operation in Aspen HYSYS, there are a couple of default values for thermal conductivity used with the Estimate HTC heat transfer method for different insulation types.
These thermal conductivity values are based on:
Gregory, G. A., "Estimation of overall heat transfer coefficient for th... |
Problem Statement: This knowledge base article describes on User Management and Role Permissions in SCM | Solution: User Management and Role Permissions are found under Security Section in the Navigation Pane.
The user management screen allows the user to add, modify roles for, or delete users. Users are set up with a primary role, and potentially with additional valid roles. When a user opens the model, the model will... |
Problem Statement: Can ACCE V10 and V9.1 coexist on the same machine? | Solution: No. Whenever Aspen Capital Cost Estimator V10 is installed, V9.1 will be deleted.
The same can be said about any in-between version, V8.8.2 and V9 can’t coexist or V8.7.1 and V8.8 This is because the full release version and the in-between are considered complementary, as they share the cost basis.
Keywords: ... |
Problem Statement: Why is the Vibration & Resonance analysis not performed when D or M shell types are used in Aspen Shell & Tube Exchanger? | Solution: Double-pipe (D-shell) and Multi-tube hairpin (M-shell) are shell and tube type exchangers, but are not covered by an official TEMA designation.
The Shell&Tube Flow-induced vibration analysis is performed only when a TEMA-supported shell type is selected. Multi-tube hairpin is covered in the vibration analysis... |
Problem Statement: How do I access the Calibration Reports? | Solution: Since Aspen Capital Cost Estimator V10 a new set of Calibration Reports are available for users.
To access them you must first evaluate the project. Once evaluated click on the Capital Costs button to access the Interactive Reports.
In the Interactive Reports, toggle Excel reports, select Other Reports | Cal... |
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