question stringlengths 19 6.88k | answer stringlengths 38 33.3k |
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Problem Statement: How to move from a dongle-locked license to a dongle-free license file | Solution: Dongle-free license file request needs to be submitted though our AspenTech Support & Training Website. Once the request has been made, Customer Care will send you a dongle return document which you must sign and return to us to process the request. A dongle-free license file will be sent via email and a dong... |
Problem Statement: How to check the start date and expiry date for a license | Solution: There are two ways to check the start and expiry date for a license
Without the SLM manager:
Find the license file and right click on the file.
Choose the Open with Notepad to open the license file.
Then you will be able to see the information of the license, usually you can see the start date on the first... |
Problem Statement: In the CimIO_msg.log a message is written:
"Maximum Ping Failure set to 3 and pinging frequency to 60"
What does it mean? | Solution: This is not an error message, but a notification.
Aspen Cim-IO will check whether the connection between the Cim-IO server and client is available by pinging every 60 seconds. If this fails three times, Cim-IO concludes that the connection is broken.
These two settings can be optimized using the Cim-IO Interf... |
Problem Statement: How to create a Custom Material on EDR | Solution: 1. To start, go to the Customize Ribbon and click on Material Database:
If the Private Materials Database is empty, the start screen looks like this:
2. To use an existing material format (gasket, plate, tube, forging, pipe, etc) for your customization of materials, select the Old ASME check box. Th... |
Problem Statement: For ACCE's Plant Bulk | Piping, there are allowance options. How can it be used in user's cost model? | Solution: In case of revamping project, complexity of piping route may be high because of interference by existing facility.
So the length of piping can be higher than the direct length of piping. User can use 'Allowance' option to increase the length of piping in a very simple way.
In Library Tab | Fittings, user can... |
Problem Statement: If you follow the wizard to add features in Windows server 2003 to add the .NET Framework 3.5 Features, and you select it and then click on Install button.
But you get the below error:
The feature Installation failed because the source files could not be found! | Solution: Without Internet Connection, you should be aware of the .NET Framework 3.5 feature should be installed from the below sources:
The same Windows media that was used when the Windows is being installed.
The Windows media with the same current installed version.
Eg. If Windows server 2012 R2 has been installed o... |
Problem Statement: As part of the configuration of Aspen CIM-IO to get data from an OPC source, a user account with proper privileges is needed. This solution provides overview of how to configure the user and the privileges needed for the Aspen CIM-IO logical device created using the I/O wizard or the Aspen CIM-IO Int... | Solution: During a logical device creation it is possible to specify a user account; depending of the method you choose (I/O Wizard or CIM-IO Interface Manager) interface will be different:
This information will be used to run asyncdlgp.exe process (by the Aspen CIM-IO Manager service) on the Aspen CIM-IO node whic... |
Problem Statement: When configuring an Aspen InfoPlus.21 Database, how can the XOLDESTOK settings be updated to allow aspenONE Process Explorer users to add aspenONE Process Explorer (A1PE) comments for past dates? | Solution: To allow A1PE users to Add Comments to IP.21 Tags for Past Dates, the XOLDESTOK setting for all fields
included in the IP_#_OF_COMMENTS History Repeat Area for the IP_CommentDef Record named “Comments”
should be set accordingly using the following SQLPlus example query:
XOLDESTOK('Comments IP_#_OF_COMMENTS',... |
Problem Statement: This knowledge base article contains a query that displays the contents of the file cimio_logical_devices.def for all Aspen InfoPlus.21 nodes available to an Aspen ADSA server. | Solution: Attached to this article is a query named FindCimIONodeNames. For each Aspen InfoPlus.21 node listed in the Aspen ADSA server, the query examines the registry value
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\AspenTech\CIM-IO\CIMIOETC
for the location of the folder containing cimio_logical_devices.def on the A... |
Problem Statement: This knowledge base article explains how to resolve the error “APRMODBC::GetAreaList:Unable to write data to the transport” when using the Aspen Production Record Manager add-in to Microsoft Excel. | Solution: This error indicates that the Aspen Production Record Manager add-in to Microsoft Excel cannot communicate with the Aspen Production Record Manager server.
Make sure the port designated for the Aspen Production Record Manager Service in the ADSA server is open both ways between client computer and the Aspen P... |
Problem Statement: We have seen reports of completely unusable Aspen InfoPlus.21 servers - for example, none of the MES tools (IP.21 Administrator, IP.21 Manager, etc) can be opened. The performance is very poor and only a server reboot appears to help get a stable system again. The operating system is Windows Server 1... | Solution: AspenTech recommend turning off Automatic Maintenance or lower the priority of the maintenance task. Go to Task Scheduler in Administrative Tools: Microsoft | Windows | TaskScheduler
Keywords: Slow
Intermittent
Unresponsive
Hang
High CPU
References: None |
Problem Statement: Does Aspen Capital Cost Estimator (ACCE) automatically add the cost of shipping materials to the estimate? | Solution: No. Shipping costs are not automatically added to the estimate. To account for shipping costs, the user could utilize the Contractors forms:
Or, the user could utilize an external Indirects file:
Keywords: freight, charges
References: None |
Problem Statement: Standalone 이나 Network License 설치를 위해 Server 로 활용될 컴퓨터의 Locking Information 을 얻는 방법을 알아봅시다.
This knowledge is based on 136832 article and translated to help the Korean customers. | Solution: 유첨의 SLMLockinfo.zip 를 다운로드받아 압축을 풀어 SLMLockinfo.exe 파일을 실행합니다.
아래와 같은 스크린을 볼 수 있습니다.
우측 하단의 "Copy to Clipboard" 를 눌러 텍스트를 복사합니다.
텍스트 파일을 하나 만든 후 붙여넣기를 합니다. 해당 파일을 저장하신 후 Aspen Technology 담당자에게 송부해주시기 바랍니다.
Keywords: SLM
Lock info, Locking Info
References: None |
Problem Statement: How to calculate the Mach Number for a multi phase fluid with VBA | Solution: The Aspen HYSYS type library (Hysys.tlb) contains all the objects and parameters associated with the Aspen HYSYS application and accessible via VBA in MS Excel. Users can create variables in VBA that reference these objects in the Aspen HYSYS library.
The example includes an Aspen HYSYS model file, with two... |
Problem Statement: This article explains how to import an Aspen Feedstock Assay Manager file (.afam) generated in Aspen HYSYS into PIMS Aspen Assay Management. | Solution: .afam files generated in HYSYS can be opened in PIMS by following these steps:
1) In PIMS go to Aspen Assay Management.
2) Go to Model Assays on the navigation section on the left side.
3) Select the “New Assay” icon on the ribbon. Then select “Import from File”.
4) In Assay data... |
Problem Statement: A composite is not showing all Controllers or Sub controllers under the Composite View in the Online Tab of the Production Control Web Server (PCWS). | Solution: Main applications may not be visible in the composite view if the Hostname used in the Data Service connection uses mixed case letters. You can check the definition of the hostname by running a command prompt window on your server and run the command “hostname”. This is a known issue and it will be addressed ... |
Problem Statement: User cannot use zoom in / out by using mousewheel + CTRL on pop-out windows like tower internal data or COA definition. | Solution: It is fixed in V11.
Users will be able to use mouse wheel to scroll vertically, use SHIFT+mouse wheel to scroll horizontally and use CTRL + mousewheel to zoom in/out in forms that pop-out in ACCE UI. NOTE: If all rows/columns in the form are already visible then mousewheel scrolling doesn't do anything. In t... |
Problem Statement: VSTS 289155: Printing Vessel Dimensions does not retrieve Double Tubesheet calculations | Solution: When running a Shell and Tube Mechanical file with a specified Double Tubesheet (chosen under Exchanger Geometry | Tubesheet | Tubesheet type), the results for Double Tubesheet do show up under Vessel Dimensions | Tubesheet/Tubes/Baffles | Double Tubesheet.
However, when you go ahead and Print the Ve... |
Problem Statement: VSTS 272163: API Sheet reports Incorrect tube count on Aspen Fired Heater
Applicable Versions
V8.8, V9, V9.1, V10, V10.1 | Solution: For a cabin firebox, you should enter the number of tubes against one wall; hence the default Tube Passes defined for a One Cabin Unit is 2. Same happens for a Twin Box, where the default tube passes are defined as 4.
This would mean the tube count should be multiplied by either 2 or 4, depending on the Fired... |
Problem Statement: Help does not open after new installation. Why? | Solution: This issue occurs due to a corrupted Aspen HYSYS installation since the help files could not be saved on the right folder. Hence, in order to solve this issue, please checks this directory: C:\ProgramData\AspenTech\Aspen HYSYS VX.X\HtmlHelp. You should find there some files. If you notice that the folder is e... |
Problem Statement: This Knowledge Base article provides simple queries for:
1. pulling data from an Aspen InfoPlus.21 tag and storing it in a comma-separated-value format to a .txt or .csv file.
2. inserting CSV repeat-area data from the same flat file to a single InfoPlus.21 tag. | Solution: --Script to write data for one tag from Aspen InfoPlus.21 to a .csv file:
SET OUTPUT 'C:\<path>\<file>';
SET COLUMN_HEADERS = 0;
SELECT IP_TREND_TIME || ',' || IP_TREND_QSTATUS || ',' || IP_TREND_VALUE FROM IP_AnalogDef
WHERE NAME LIKE '<tagname_A>'
AND IP_TREND_TIME BETWEEN '01-JAN-18 00:00:00' AND '31-MAR-... |
Problem Statement: The standard Aspen IP.21 Process Browser (formerly Web.21) installation does not contain Detail Display pages for records defined by IPAiDef, IPDiDef and IPSetDef. | Solution: Download and unzip the attached file. Place the three asp pages in the \Inetpub\wwwroot\AspenTech\Web21 folder.
Keyword
IP_AiDef
IP_DiDef
IP_SetDef
Keywords: None
References: None |
Problem Statement: What are the network and software requirements for Software License Manager (SLM)? | Solution: aspenONE software utilizes Software License Manager(SLM) for licensing. To be able to use SLM, the following requirement must be met:
Network Requirements:
Ports: You will need to have specific ports open bidirectionally so that the SLM Server can communicate over the network.
· Port Number: 5093 | ... |
Problem Statement:
How to transfer a Failure Agent from one Mtell database to another Mtell Database? | Solution: If you have assets which are essentially identical, such as several compressors of the same model running under similar operating conditions, then you can create a Failure Agent on one asset and deploy the Failure Agent on another similar asset.
Export a Failure Agent from an Equipment Set Profile
1. Launc... |
Problem Statement: Can I use nonlinear equations to define capacities? | Solution: Yes, non-linear equations can be used to define capacities in PIMS-AO. If the traditional capacity naming is used, then those capacities can be controlled via Table CAPS. The capacities will also be reported in the Capacities section of your reports. However, there is no connection of the capacity to a par... |
Problem Statement: Does the ADSMALL setting work when using table MICROCUTS? | Solution: The ADSMALL setting is not currently compatible with the use of Shortcut Distillation with Table MICROCUTS. We are investigating the possibility of extending this functionality to Table MICROCUTS in future versions, but as of Aspen PIMS V10.0, it is only compatible with standard distillation using Table ASSA... |
Problem Statement: Can I customize what is in my reports? | Solution: The PIMS standard reports are partially customizable. Users can deselect various report sections as desired. For example, in the screenshot below, the user is not interested in the details of utilities in the fullsolution report and has de-selected the report sections related to utilities.
When more cust... |
Problem Statement: Should I remove all tiny coefficients from my model? | Solution: Tiny coefficients - smaller than +/- 1e-7 – can be an issue for optimizers and we recommend eliminating them from your model. However, it may not be as simple as finding all such coefficients and replacing them with zero. The issue is whether the coefficient becomes significant in your model optimization. ... |
Problem Statement: What tools can help improve my matrix initialization in PIMS-AO? | Solution: In Aspen PIMS-AO the matrix is initialized in one of two ways:
No input solution file. In this scenario, the properties are initialized using Table PGUESS values and columns are initialized to the Default Initial Value designated in the model settings as shown below.
The recommended alternative is to desig... |
Problem Statement: How do I enable .NET Framework 3.5 / 4.5 within Windows OS? | Solution: .NET Framework 3.5 / 4.5 is built into the Windows OS has a Windows Feature. To install .NET Framework 3.5 / 4.5 follow these steps:
Non-server Windows OS:
Open the Control Panel and click Programs and Features.
Once the Programs and Features window displays, click Turn Windows features on or off.
Expan... |
Problem Statement: Common cause of RadFrac column failure during dynamic run? | Solution: One of the most common reasons of column failure is significant shift in column stage pressure profile during dynamic run. If for some reason, column feed stage pressure is considerably different than that of feed pressure during dynamic run, failure can occur. This may happen for many reasons including rapid... |
Problem Statement: Each batch generated in the Aspen Production Record manager Database has a system generated Batch ID and a Serial Number associated with it.
Aspen Production Record manager uses the Batch ID to link all supporting variables and parameters. For example, a Batch SPC variable defined for the Area gets u... | Solution: This query uses the Batch.21 API Object module in Aspen SQLPlus.
Note: The Aspen Batch.21 Application Interface library needs to be added as a reference before running this query
LOCAL BatchDataSourcesOrig;
LOCAL BatchDataSources;
Local BatchDataSource;
Local BatchQ;
Local Area;
Local Desigval;
Local Batch;
L... |
Problem Statement: My PIMS opens up solutions of each case at the end of run. How can I disable this? I've checked all the settings and don't see it anywhere. | Solution: The run dialog box contains an option: "Open Report Windows". This option needs to be de-selected.
Keywords: Open Report Windows,
References: None |
Problem Statement: In the EDR program, how can I select different methods for calculationg mixture surface tension in Aspen Properties? | Solution: Surface tension is an important parameter in the design and rating of shell and tube exchangers and therefore accurate estimation will be of fundamental importance.
In the EDR program there is now the option to use Aspen Properties in which there are a variety of methods available for the estimation of mixtur... |
Problem Statement: We have built a lot of structure in local PIMS model to constrain our loading unloading possibilities. We would like to be able to use this structure in global XPIMS or MPIMS models. We have built the structure using tables ROWS/BOUNDS | Solution: Though making a global version of ROWS/BOUNDS by appending or changing the structure of the keywords using Excel functions like CONCATENATE is a viable option we do understand that it is indeed easier to just keep exactly the same structure present in the local models. This makes maintenance easier and also s... |
Problem Statement: How do I resolve the error "Could not Create PropertiesDialog Check that AtProperties.dll is registered" when opening an Aspen Process Explorer plot? | Solution: Try re-registering the following files located in the folder C:\Program Files (x86)\Common Files\AspenTech Shared\Apex:
1. AtPECoreCtls.ocx
2. AtPEGuiCtls.dll
3. AtSamples.ocx
4. AtTime.dll
Also, re-register AtProcessdata.dll located in the folder C:\Program Files (x86)\AspenTech\ProcessData.
Keywords:
... |
Problem Statement: Why can’t I see wires smaller than 12 AWG for Low Voltage in the Electrical items report of Aspen Capital Cost Estimator V10? | Solution: In V9.1, a bug fix allowed the spec in Project Basis | Electrical Specs | LV minimum wire size to be read correctly. See article 000045643 for more info.
The default value for this field is 12 AWG, meaning that no smaller wires will be calculated in the program.
If the user wishes to consider smaller wire dia... |
Problem Statement: How do I resolve the error "Could not Create PropertiesDialog Check that AtProperties.dll is registered" when opening an Aspen Process Explorer plot? | Solution: Try re-registering the following DLLs located in C:\Program Files (x86)\Common Files\AspenTech Shared\Apex
1. AtPECoreCtls.ocx
2. AtPEGuiCtls.dll
3. AtSamples.ocx
4. AtTime.dll
Also, re-register AtProcessdata.dll located in the folder C:\Program Files (x86)\AspenTech\ProcessData
Keywords:
References: Non... |
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:
Load the attached case.
Add a spreadsheet to the flowsheet.
Open the spreadsheet form, select a cell and click Add Import.
Select the air cooler AC-100 and wait for variables to populate.
Scroll down to ... |
Problem Statement: What equations are used in the Heat Exchanger model in Aspen HYSYS to calculate shell side and tube side heat transfer coefficients? | Solution: When the user does not specify heat transfer coefficients, the simple steady-state rating model uses different equations depending on certain characteristics of the flow. The equations are given below:
Tube HTC, Single Phase Flow:
Re > 10000: h = 0.023*Re^(-1/5)*Pr^(-2/3)*Cp*massFlux
2100 < Re < 10000: h = ... |
Problem Statement: What is Exchanger Effectiveness and how can this be used in Aspen Shell & Tube Exchanger? | Solution: The effectiveness of a (two-stream) exchanger is the exchanger heat load as a fraction of the maximum possible heat load. The maximum possible heat load for a given set of process inlet conditions occurs either when the hot stream is cooled to the cold stream inlet temperature, or when the cold stream is heat... |
Problem Statement: How do I customize the Fly by window in Aspen HYSYS? | Solution: When a user hovers over the stream in Aspen HYSYS this displays the values of the variables specified in the Fly by setup. The default variables are Temperature, Pressure and Molar Flow. The default variable can be changed in the “File | Options” in Aspen HYSYS. Select “Simulation” in the “Options” page and ... |
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, ... |
Problem Statement: How to configure flow splits in Aspen HYSYS Hydraulics? | Solution: Attached is an example case which explains to configuration for flow splits in Aspen HYSYS Hydraulics. The hydraulic solver can calculate the flow based on pressure drop in each branch and the specified constraints in the boundary streams.
The constraints can be either flow or pressure. The constraints can... |
Problem Statement: Why do I see an inconsistency between the user input and calculated light ends in Petroleum Assay? | Solution: In Petroleum Assay, The light ends are extra data in addition to cut yield data.
Let’s take a simple example. If there are 5 hypo in a case, hypo1-hypo5, user specified 5 light gases(C1-C5) with 1% composition for each. If hypo1 is IBP-38C and its composition is 5%, the calculation needs this extra informatio... |
Problem Statement: How to model a Flame Arrestor on Aspen Flare System Analyzer? | Solution: Aspen Flare System Analyzer’s palette does not have a Flame Arrestor operation. However, there is an alternative to add the pressure drop caused in this operation by using a FlowBleed unit.
The Flow Bleed is a simple calculation block that can be find on the model palette and allows the customer to:
• Sp... |
Problem Statement: How can I backcalculate compositions of a stream in a Mixer block in Aspen Plus? | Solution: Aspen Plus doesn’t have the ability to backcalculate properties for a stream as Aspen HYSYS does. However, there is an easy workaround for this by using a Calculator block. We will use a water/ethanol system for this example.
Once the Unit Op where you want the backcalculation to be done is set up (the Mixe... |
Problem Statement: How can I refer a calculated stream already connected to a Unit Operation from a Subflowsheet to another flowsheet? | Solution: The correct workflow to refer one calculated stream from a Subflowsheet and use its results to define another stream on another flowsheet without having to manually copy from the original stream every time is the following:
1. Make sure the subflowsheet with the original stream is fully converged.
2.... |
Problem Statement: Why does the Overall Heat Transfer Coefficient increase when using a high viscosity fluid? | Solution: The Heat Transfer Coefficient (HTC) is a proportional function of both Reynolds and Prandtl numbers:
Where: the Prandtl number (Pr) is directly proportional to the viscosity of the fluid
and the Reynolds number (Re) is inversely proportional to the viscosity of the fluid
Hence, the HTC is expected... |
Problem Statement: Even if .json files and accompanying .jpeg files or subfolders exist in C:\inetpub\wwwroot\AspenTech\Process Explorer\Files\Public, the public folder within the navigation pane of AspenONE Process Explorer still does not expand when clicking on it and behave as if there were no files within the publi... | Solution: This most commonly occurs when AspenTech files are installed on a drive other than C: even though IIS is installed on the C: drive. To resolve this issue, look for a file named "default__.tls" and migrate all graphics and trends into the folder containing the "default__.tls" file instead. Upon doing so, the g... |
Problem Statement: If feed contains trace-level-concentration of light impurity whose relative volatility is higher than that of light key component, it can be accumulated in the dead zone of piping / equipment and can cause operating problem like localized corrosion and operating condition upsets. These impurities als... | Solution: HYSYS can model pasteurization section as a steady state, one important thing is user shall input non-zero flow rate for distillate flow even if operating column has zero-flow rate.
If user input '0' as a distillate flow rate, column will not converge with error message.
Please input low number of distill... |
Problem Statement: How can I solve O2 mole fraction convergence issues when working with an incinerator? | Solution: When working with an incinerator, you may encounter some convergence issues when changing the Target Outlet O2 Mole Fraction.
The simulation may be behaving correctly and converging at a low value, but encounter convergence issues when this value is increased.
Here are two recommendations to choose ... |
Problem Statement: A dynamic utility is available for solving known Security Server configuration problems. This utility can be used with both Aspen Framework and Local Security.
Local Security users should run this utility before installing or upgrading their Aspen Local Security server to determine if the ALS version... | Solution: The utility, SSTest.hta, can be used to diagnose and solve common Security Server configuration problems. SSTest is an HTML application with embedded JavaScript to progressively test the role-based security client/server interface. Possible solutions for failed tests are returned in HTML format. Links to appr... |
Problem Statement: How to use Aspen Process Data Add-in to Retrieve Compliance.21 Data | Solution: The Process Data Attribute Values dialog box can be used to retrieve data from Compliance.21. To display the Attribute Values dialog box select the Aspen menu from the Excel menu bar. Choose Process Data, select Get Data, then select Attribute Values.
In the Attribute Values dialog box:
1. Use the Ta... |
Problem Statement: An RTE controller loaded but won't run. The run time is not updating and the WHYOFF message remains as Application Starting. | Solution: When the RTE controller loaded but won't run is likely a result of an erroneous input calculation. When a input calculation failed, the controller cycle is aborted and the controller will try to run again the next cycle. Unfortunately there is no message to indicate the error. In order to troubleshoot the ... |
Problem Statement: Some of literature provides UNIQUAC parameters of TAU as △Uij while Aspen Plus is using different polynomials for TAU.
> Literature, other source
> Equation of Tau used in Aspen Plus | Solution: Aspen Plus uses polynomial equation to calculate Tau for activity coefficient while UNIQUAC equation originally developed from Tau only with energy interaction parameter △Uij.
If user want to input △Uij parameters, user can use "Enter Dechema Format" to input this.
If user input △Uij parameters, Aspen Plus ... |
Problem Statement: When user adds 'Catalytic Converter' in sulsim, there are 2 types of catalyst selection in Design > Paramters tab of 'Catalytic Converter' Block.
User needs to choose the catalyst either between 'Alumina' and 'Titania'. | Solution: When acid gas is burned in reaction furnace, some undesirable reactants like COS and CS2 are created due to the side reaction between CO2, Hydrocarbon and H2S. Hydrolysis is the reaction between COS and H2O, or CS2 and H2O which is turning back those reactant to H2S. H2S is then can participate Claus reaction... |
Problem Statement: How can I enable or disable the SLM “Network Broadcasting” option from the Windows registry? | Solution: This Knowledge Base article describes how to change the SLM “Network Broadcasting” option in the Windows Registry. This option allows SLM clients to automatically search for other available SLM Servers in their networks in case the Servers or Licenses on the specified SLM Server list (configured by the SLM Co... |
Problem Statement: This is article explains how to fix the error 'The procedure entry point libm_sse2_exp2 could not be located in the dynamic link library libmmd.dll ' when opening Aspen DMCplus Model. | Solution: 1, find libmmd,dll from "C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\ia32\compiler"
2, copy it to "C:\Windows\SysWOW64"
This should make DMCplus Model work again
KeyWords
DMCplus Model
libmmd
dll
Keywords: None
References: None |
Problem Statement: There are times that a tag existed in the CLE file but would not extract its data from the BIN file. The extract programs marked the line in the CLE file as such
N~~~Modeltagname~~~DCStagname~~~
every time it runs | Solution: If the CLE file is not generated automatically (due to a lack of description and engineering units), the tag in the CLE file has to match exactly as it appears in the collection list. If not, the extract program would mark it N~~~ in the CLE file after it run and it would not extract the data. For examples,... |
Problem Statement: Intro:
When dealing with predicting properties of blends in PIMS and APS we usually work with either linear or linearized property contributions. Sometimes we also model the impact of components on each other, either using tables PBONUS or INTERACT which are well explained in PIMS help. In essence PB... | Solution: To begin with we will switch over to the use of table INTERACT. One might argue that we do not have enough data to use INTERACT but we will show that INTERACT can be used to deliver same effect as PBONUS which in itself would have been superfluous but serves as first step towards modelling this problem. First... |
Problem Statement: How does Production Control Web Server (PCWS) implement a WRITE to the DCS when a change is made through a web viewer | Solution: When any APC application (DMCPlus, DMC3, IQ) runs for the first time, CIM-IO READ and WRITE lists are built based on the configuration in the application (READ, RDWRT, WRITE, ...). These lists are maintained as long as the application is running.
When an user is looking at an APC application on the PCWS th... |
Problem Statement: Aspen Watch (AW) reports are generated and stored in the AspenWatch (AW) server in the folder C:\ProgramData\AspenTech\SQLplus\Output. How do they get copied to the Aspen Production Control Web Servers so that they can be viewed. | Solution: Once the reports are stored in the output folder, the Querydef record AWPCWSReports is run on a regular interval to scan the output folder and generate a command file that pushed the reports to the C:\inetpub\wwwroot\AspenTech\ACOView\Reports using the WCF (Windows Communication Foundation) protocol. Only fi... |
Problem Statement: How to build a rolling average calculation in Aspen DMC3 Builder | Solution: In order to build a rolling average, we need to have a stack equal to number of cycles in the rolling average. Below is the sample of calculation that calculate a 10 cycles rolling average of an input.
'Initialize the stack
'
if (fistrun=1 or ctl_init=1 or var_init=1) then
Input_avg = Raw_input
stack1 =... |
Problem Statement: Attached to this article is a sample query that displays the active file set number of a repository, the number of tags being written to the active file set, and the list of tags with their definition records stored in the file set. | Solution: The query prompts for a case sensitive repository name.
Using the object AtIP21HistAdmin, the query finds the active file set number of the repository.
Next, the query issues a system command to run the Aspen InfoPlus.21 utility h21summary. The query parses the the output of h21summary to retrieve the nu... |
Problem Statement: ** Courtesy Magnetol international
Wave radar type level instrument requires dielectric constant information. It sends high-frequency electromagnetic pulses to downward and it measure the discontinuity of dielectric constant between vapor and liquid to indicate exact level. This level instrument gen... | Solution: The reason is that Dielectric constant of Aspen Plus is mainly used for electrolyte system phase-calculation and might not accurate for plant instrumentation.
Aspen Plus does not rigorously calculates mixing effect of dielectric constant. Moreover, dielectric constant information of many components may be mi... |
Problem Statement: There are 2 tuning factors for rate-based column simulation.
Heat transfer factor and interfacial area.
Interfacial area is used to adjust mass and heat transfer while heat transfer factor adjust heat transfer between liquid and vapor phase.
If user has operation results from real plant or experim... | Solution: Basis : Assume that user has input all the internal information and done the rate-based simulation.
Heavy key entrainment to the top and light key entrainment to the bottom is 582 kg/hr respectively.
Assume that the user has entrainment data and temperature profile from real operation.
1. Create Data-Fi... |
Problem Statement: When user choose feed convention as 'Above-Stage' in Streams (Tab) | Feed streams | Stage, user can input NS+1 stage which is not existing in the column. (NS: Number of Stage)
If user choose other feed convention like 'On-Stage', NS+1 stage shows consistency error. | Solution: For example, let's say the number of stage is 20 and there is vapor inlet stream at the bottom.
- If user input vapor stream to 20 stage with Above-Stage. Vapor is fed to 19 stage and column cannot converge.
- In this case, user can input vapor stream to 21 (NS+1) stage with Above-Stage. Then vapor is fed to... |
Problem Statement: Pure analysis in electrolyte system does not matching with the parameter (i.e PLXANT). | Solution: The reason is that the 'Chemistry' of electrolyte simulation and its chemical equilibrium is applied even if user use pure (or mixture) analysis.
For example, even if you want to see CH4O2 component's vapor pressure, it finds chemical equilibrium and not a pure component anymore.
So when user wants to analy... |
Problem Statement: Excess enthalpy cannot be calculated when user regresses only Aij / Aji parameters. | Solution: As excess enthalpy of mixing is calculated by differentiation of activity coefficient,
User need to regress Bij / Bji parameters together as it affect temperature term. (Bij/T)
If we see the Aij / Aji parameter, we can find that there's no temperature effect.
When user have excess enthalpy data, regressio... |
Problem Statement: High Performance Tray has special type of internal dimension. Aspentech provides various types of conventional tray, but no options for this special tray.
Now most of vendor provides high performance tray (or sometimes, high capacity tray) that can have 5 to 15 % capacity advantages over conventional... | Solution: Not exactly, user need to adjust the model to achieve this.
There are 3 adjustment factors provided for column hydraulic. User need to understand these factors to model his/her own proprietary column.
Please go to Radfrac | Internal | Design Paramters
System Foaming Factor : This factor adjust flooding li... |
Problem Statement: Which pressure is used if you specify both the global pressure and system back pressure in Aspen Flare System Analyzer? | Solution: In Aspen Flare System Analyzer the user can specify the Atmospheric pressure in the Calculation Settings Editor as shown below.
The user can also set the System back pressure in the scenario editor. System back pressure refers to the static pressure at the outlet of the flare tip. By default, this is set t... |
Problem Statement: I have imported a template in my flowsheet but the fluid package in the imported template is different from the main-flowsheet. How do I change the fluid package for the template imported in the flowsheet? | Solution: The template inherits the fluid package used to create the template flowsheet. The user has the option to change the fluid package after importing this into the current simulation. The option is available in the Home page under Fluid Package menu as highlighted below.
The Fluid Package Manager will open wh... |
Problem Statement: How do I exclude the height restriction in depressuring study when using Fire API521 equation? | Solution: The Fire API521 Operating Mode uses the heat flux model described in Section 4.4.13 in API Standard 521. Three coefficients: C1, C2, and C3 must be specified. The equation used by the Depressuring Utility is an editable form of the empirically-derived API 521 heat flux equation for a liquid-containing vessel.... |
Problem Statement: How do I view the phase properties for the various headers and tailpipes? | Solution: It is possible to view the phase properties of the fluid within the various headers and tailpipes within the flare system. To do so, you must first ensure that the "Save Phase Properties" check box is checked off in the Preferences. To verify if the box is checked, access the Preferences view via the File men... |
Problem Statement: How do I use the TEE in Dynamic mode? | Solution: In Dynamic mode the flow rates of the exit streams from the TEE are determined by the pressure flow solver. This gives the realistic flow behaviour in the dynamic simulation.
The user can also consider "Use Splits as Dynamic Flow Specs" in the TEE as shown below.
With this specification active, the user ... |
Problem Statement: How is the k value calculated for LNG exchangers in Dynamic mode? | Solution: The k value in the LNG exchanger is calculated based on laminar flow or by the flow equation.
Laminar flow
If the laminar option is checked the k value is calculated as:
k = SQRT(massFlow/(massDen * dP))
Flow Equation
If the flow equation is checked then the k value is calculated as:
k = massFlow/SQRT... |
Problem Statement: Simple Partial Differential Equation modeling in Aspen Custom Modeler | Solution: Here is a simple PDE model to illustrate the below equation, example file is attached.
Equation for linear heat transper, v is heat transfer coefficient.
CODE
Model PDE
Axis as LengthDomain (length:8,HighestOrderDerivative:1,spacingpreference:0.5);
// 8m X-axis, 0.5m discretization, so 16 point.
T a... |
Problem Statement: What are the required steps for upgrading an SLM server running on an InfoPlus.21 machine? | Solution: Before following these steps, it is recommended to schedule an InfoPlus.21 downtime window, as InfoPlus.21 functionality may get affected. To read more about the different InfoPlus.21 license states and behavior, refer to KB 18640.
Go to C:\Program Files (x86)\Common Files\Safenet Sentinel\Sentinel RMS Licens... |
Problem Statement: How to interpret temperature profile of Absorber column? | Solution: Absorber column for gas solute that is absorbed to liquid solvent usually shows temperature increase within the column.
This is because of the absorption heat (Vapor Solute changes to Liquid Solute, similar to heat of vaporization) and heat of mixing between Solute and Solvent. (i.e. CO2 solute absorption to ... |
Problem Statement: What is Criss-Cobble equation and how it calculates aqueous phase heat capacity at infinite dilution (CPAQ0) ? | Solution: For Ion type components in electrolyte simulation, thermodynamic properties like entropy, enthalpy and Gibbs energy information are required.
If those information are missing, Aspen Plus use Criss-Cobble correlation to estimate those properties.
The Criss-Cobble model is based on a model that the standard pa... |
Problem Statement: There are a lot of questions regarding if a SQL server database is supported in certain versions of PSC products from V8.8 to V11. This article is a quick reference on the list of supported database versions. | Solution: Version Number Database Servers
V8.8 Microsoft SQL Server 2012 SP1 Standard & Enterprise
Microsoft SQL Server 2008 R2 SP2 Standard & Enterprise
Oracle Database 12.1.0.2 (Only supported in MES and SCM)
Oracle Database 11.2.0.4 (Only supported in MES and SCM)
Oracle Client 11.2.0 or 12.1.0 (32-bit) must be inst... |
Problem Statement: When trying to save a plot on the Production Control Web Server (PCWS) site, operation is not successful, and the following error shows up.
“Permission denied – No account was found: Launch browser using ‘Run as Administrator’ or contact your administrator” | Solution: First try to run the PCWS site as an administrator as indicated on the pop-up message.
If the above does not work, on the web server, check that the following folders have Write permissions (NTFS file security system) for the username you use to log on to the Production Web Control Web Server site:
C:\inetpub... |
Problem Statement: DMC3 Builder would crash upon open an existing project. This is largely due to corrupted file(s). | Solution: DMC3 Builder stores the project as a series of files or folders. Most of the datasets and applications are stored under the APC folder. In case of a corrupted project where you can't open it, it is largely due to one or more corrupted files (hopefully it is not one of the dataset or applications). To fix a ... |
Problem Statement: Trouble enabling ASW V10.0 in Excel | Solution: If you have trouble getting the V10.0 ASW add-in enabled in Excel:
1. first, try to activate the add-in through the option in Excel (refer to the article “How to enable ASW in MS Excel?” for more details https://esupport.aspentech.com/S_Article?id=000046735 ).
2. if it is without success, then perhaps the p... |
Problem Statement: How to changed default first result displayed after run in EDR? | Solution: By default Aspen Exchanger Design and Rating (EDR) program will display warning/messages page after run, but program will allows the user to change first displayed result page after run.
To change default first result displayed after run, please go to File and then click on Options page to open Program settin... |
Problem Statement: Installing the Aspen Microsoft Excel Add-ins from the Aspen IP.21 Process Browser may fail due to permission errors or an internal security policy. This solution explains has to install the Aspen Microsoft Excel Add-ins (both the COM and legacy add-ins) directly with the files used by the Aspen IP.2... | Solution: Use the file [Disk drive]\inetpub\wwwroot\AspenTech\AspenCUI\ExceladdinSetup.exe on the Aspen IP.21 Process Browser server to install the COM-based ribbon add-in. This file installs the proper add-in based on the system architecture (32-bit or 64-bit). The setup program opens and closes a command window wit... |
Problem Statement: Problem Statement:
How can I manually secure an individual Aspen IP.21 Process Browser page? | Solution: Adding a few simple lines of code to a page can secure the page from being viewed by members not in the specified role.
In the following file example (PEXYPlot.asp), the highlighted added code will allow only the AFW roles of "Aspen Web.21 Administrators" and "Aspen Web.21 Users" to view the page:
Notes:
... |
Problem Statement: During the installation of Aspen InfoPlus.21 Server you can select a different drive for the aspenONE products rather than C drive. The group200 folder should be installed under the specified folder. If, instead, you had installed to the C drive but later want to move it to a different drive you will... | Solution: To achieve this change, follow the steps below:
1. Stop the Aspen InfoPlus.21 database
2. Stop the Aspen InfoPlus.21 Task Service
3. Move the group200 folder from its current location - by default,
%ProgramData%\AspenTech\InfoPlus.21\db21\
- to its new location - for example,
D:\AspenTech\InfoPlus.21\db2... |
Problem Statement: What is this warning and how this can be eliminated? | Solution: This warning message will appear if you select “TEMA F and F EJ Line Element FEA interface� option expansion joint calculation as shown below.
TEMA F and F EJ Line Element FEA interface EDR now interfaces to the TEMA flanged-and-flued (thick wall) expansion joint Line Element Finite Element Anaylsis softw... |
Problem Statement: Why do I get an error message in Aspen Asset Analytics when cloning a model or build? | Solution: In Asset Analytics you can clone or copy a model/build that you have already created.
When copying a model you select the 'Copy' (fig 1) icon
Figure 1
You then receive an error message.
"Error Cloning Root Cause Model in DAWS Response from DAWS:
The model could not be saved because it does not exist"
Th... |
Problem Statement: A new Aspen InfoPlus.21 HPT Search Data Management page was added to Aspen IP.21 Process Browser in V8.0. Using the management tools it is now possible to completely purge the HPT search index or simply update/remove tags from the index by specifying the individual data source they belong to.
On clic... | Solution: This error is likely to occur if your server has Internet Enhanced Security (IE ESC) enabled for Administrators. This feature needs to be disabled for High Performance Trend operations to work correctly. To disable this feature see How to correct the messsage "zoom control unable to create canvas element"on T... |
Problem Statement: This knowledge base article documents why users attempting to open the Aspen Audit & Compliance Manager webpage via IP.21 Process Browser are seeing the error message:The certificate used to identify this application has expired. | Solution: This happens because the Rsproxy.jar certificate expired on the 19-June-2017. Customer may update the jar file with the attachment to this article. Please carry out the following when updating the jar file location.
Create a copy of the old file as backup file as there may be a chance that the file is corrup... |
Problem Statement: If there are V8.x 64-bit products installed in a non-default installation folder, after upgrading to V9.x, some of the product installation files are moved to the default installation location (C:\Program Files\Aspentech), instead of remaining in the non-default installation folder.
This is caused ... | Solution: Before upgrading to V9.x, you will need to add the ASPENROOT64 registry key. To do this, follow the steps below:
Open the Windows Registry by typing regedit.exe in the Start Menu Search Box. Right-click it and select Run as Administrator.
Expand HKEY_LOCAL_MACHINE\Software\ApenTech\Setup.
In the right pane, r... |
Problem Statement: Does Aspen Air Cooled Exchanger calculate the liquid level on the headers? | Solution: Aspen Air Cooled Exchanger does not explicitly calculate the liquid level in the header box based on pressure drop through the return passes and the necessary static head from condensate level in that header box required to remove the accumulating condensate.
However, we can use the Phase Separation option (I... |
Problem Statement: Is there a JDBC driver for Aspen InfoPlus.21? | Solution: Historically, there has not been an AspenTech provided JDBC driver for Aspen InfoPlus.21. You have been able to use the Oracle JDBC-ODBC bridge included in JDK up to version Java SE 7. You then specify AspenTech SQLplus as the ODBC driver.
Starting with Java SE 8, the JDBC-ODBC Bridge will no longer be inclu... |
Problem Statement: Are there any Rules of Thumb while choosing a Statistical Data Distribution Type in AFR? | Solution: Following are some Rules of Thumb while choosing a Statistical Data Distribution Types in AFR
Weibull betas - If it is greater than 2.5, double check your data
Log Normal distributions - Only use with 20+ data points
Number of Data Points - If Less than 4, then use Exponential
Normally Use Weibull or Exponent... |
Problem Statement: When running a query in the Batch Extractor you get an error:
Error using SQL:Query timeout expired select * from vBDIS_INTERFACE_Subbatch where end is not null | Solution: This message can occur when you have entered a SQL query that either:
1. Is over 100 characters long.
2. The query involves too much data.
To resolve this issue you will need to shorten the query to resolve less data or you can increase the SQL timeout (see article 000044724):
https://esupport.aspen... |
Problem Statement: How can I solve the error ERROR> 'CD - 1' TOTAL INDIRECT WAS SPECIFIED - ITEMIZED INDIRECT IGNORED? | Solution: The cause of this error is an over specification for the Indirect Costs data for one or more contractors.
The user can choose to either specify the two fields in the INDIRECTS TOTAL section, which will affect all the indirect items.
Alternatively, if different specifications are known and wished to be entere... |
Problem Statement: While working in Visio I encountered an Illegal Connection error. Even after resolving the error, the enlarged pipe widths of the pipes in question do not revert to the original state. Is there a way to restore the original width? | Solution: There is no button of reverting the enlarged pipe in Visio. You will have to manually change the width of the pipe to match the standard. A quick way to do it is to Right click on the pipe à Styles à Line à Weight à 1.5 pt as shown in the following screenshot:
Keywords: Visio, Illegal Connection error, pipe w... |
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