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Problem Statement: An example of business set up for Aspen Fleet Optimizer | Solution: Aspen Fleet Optimizer Version: V.vxxxx.x
Users/Optimization Groups
o How many users of Optimizer
o How many optimization groups and their locations
o How many super users
Data
o Inventory Only, Sales Only, or Both.
Order Entry
o Via customer support, VFM, WFM, SAP?
o ... |
Problem Statement: How can I model a milk run in Aspen Petroleum Supply Chain Planner? | Solution: The ?Milk Run? structure is so named because it resembles the delivery route of a milkman who loads the delivery wagon at the dairy, unloads deliveries along a defined route and returns to the dairy with an empty wagon ready to load again. The dairy is the only location where supplies are loaded. Each trip ca... |
Problem Statement: Please provide an example of testing Scope for Aspen Fleet Optimizer upgrade | Solution: Type of Testing
Factory Acceptance Testing - FAT
Executed at AspenTech office
Customer data used for testing
Focus on customer (priority) business processes
Ideal length: 2 calendar weeks on site (executed one week at a time)
Benefits
Customer testing team has direct contact with R&D if any questions/issues a... |
Problem Statement: Why must the Data Quality Manager process be run each day? | Solution: Aspen Fleet Optimizer relies on the ability to receive, use, and manage accurate data. This data can be sales and inventory information collected from customers or up-to-date loading and delivery information, for example. Accurate and timely data can contribute to improved dispatch efficiency, accurate demand... |
Problem Statement: Is there a good way to apply a blending margin for a specific property on product level? | Solution: The ?Property Bonuses? option allows adding a property bonus which identifies the difference between the blending value and the neat value.Use ?Property Bonus? to calculate (predict) blend property values. If utilized, the property bonus is added to the corresponding property before linear blending is perform... |
Problem Statement: Why is the menu entry Event / Add Event / Tank Property Change not active using 2006.5? | Solution: The first requirement to have this option available is related to the new Event tables. This new event requires ATOrionEvents/ ATOrionEventTanks/ ATOrionEventComments and ATOrionEventProps . If the final user is using the old EVENTS table, the option about Tank Property Change event will not be available.
We ... |
Problem Statement: What is the suggested authentication for Aspen Refinery Multi-Blend Optimizer (MBO)? In association with this, what are the various roles that are suggested for MBO? | Solution: In MBO, there are accounts to log in to the software and the user name and password is stored in the SQL/Oracle Server database or access via a USERS table and a GROUPS table. When Windows authentication is used then the accounts in the USERS table must be the same as the user accounts for network login (no p... |
Problem Statement: This tutorial provides an example to educate users as of how to import numeric data available in a text file into a table in Aspen SCM. There are no particular pre-requisites required for reading this document; though, prior working experience in Aspen SCM will aid in easier understanding. The versio... | Solution: The following are the steps to accomplish this import:
a. The following table contains the actual demand information to be used in this example. There are a total of 12 rows and 2 columns. The objective is to import these 24 numerical values into a table in Aspen SCM.
2013
2014
JAN
1800
1500
FEB
1500
... |
Problem Statement: The new Aspen SCM GUI interface is built using XML. This knowledge base article demonstrates how to build custom screens in the new Aspen SCM GUI by programming in XML. This is a follow-up article of the previous | Solution: #135832 `XML Tutorial - How to build or edit a sample User Management Screen?. The case file containing the previousSolution can be found in the attachment.
Example
Keywords: None
References: None |
Problem Statement: What is the recommended list of things that I need to do to prepare for the upgrade project? | Solution: Obtain and review the documentation for the new release and determine any new or revised hardware and software requirements for the new release. Secure the necessary hardware and third party software as needed.
? Create an upgrade project plan and time line jointly with AspenTech
? Set up ... |
Problem Statement: What is the Optimization-Modeling Process? | Solution: The world is full of problems that are ripe for optimization; optimization is about choosing or selecting outcomes defined as better. These problems can be solved using mathematical modeling. Practice of optimization is only restricted by the lack of full information, and the lack of time to evaluate what inf... |
Problem Statement: How do you build a simple model in Aspen Supply Chain Planner? | Solution: Companies use Linear Planning (LP) to maximize or minimize (objective function) a linear function, usually profit or costs that is subject to a variety of restrictions (constraints). Others will use it to allocate scarce resources, such as facilities, that compete to make different products. LP will find the ... |
Problem Statement: How do I plan an upgrade project for Aspen Fleet Optimizer? | Solution: As Aspen Fleet Optimizer is a mission and operation critical application, upgrading to a newer version requires careful planning to make the transition smooth and successful. A good project plan for the upgrade can ensure the success. An upgrade project usually consists of the following steps:
1. Study ... |
Problem Statement: When should I use other additions in Aspen Fleet Optimizer Data Quality Manager? | Solution: Other Additions is a way to add or subtract product to help in the reconciliation of an exception. These values include unexpected or undocumented additional shipments of product to the customer. When a retain occurs or a customer receives an unexpected shipment, the quantities of product dropped can be logge... |
Problem Statement: When should I use the override function in Aspen Fleet Optimizer? | Solution: The override function in Aspen Fleet Optimizer should be used very sparingly if at all. It would be our recommendation that for the majority of users that override button be disable in the customized.ini settings under WINOPT. The setting name is showorbutt and we would recommend that it be set to zero. When ... |
Problem Statement: OPC Tunneller software (non Aspentech, third party software) can be used to avoid DCOM issues when a firewall exists between an OPC client and OPC server.
This article describes the use of OPC Tunneller software in combination with Cim-IO for OPC. | Solution: OPC Tunneller software provides the same benefits of OPC and COM while eliminating the need for complicated DCOM configuration.A
Typically Cim-IO for OPC is configured to connect to an OPC server running locally, or on a remote system.A The remote OPC connection uses DCOM and can be a complicated configuratio... |
Problem Statement: This knowledge base article explains how to add new decision variables as activities to your Material Balance report in Supply Chain Planner in V7.3.1 / V8.
The pre-requisite to read this document is to have a good understanding of Linear Programming and its configuration in Aspen SCM.
In the exa... | Solution: This is how the Firm Demand was introduced in the standard CAPs Supply Planner model:
1. Created a new decision variable by adding FRMDEM into the COL set. The description can be blank as the application will rewrite this field as soon the domains are entered in the COLS table.
2. Since this varia... |
Problem Statement: Some Refineries require to blend some products directly into a large ship. In such a case, the vessel(ship) acts as the destination tank.
What should be the best practice to implement this kind of logic in Aspen Petroleum Scheduler (Orion) ? | Solution: 1.- BLEND COMPONENTS DIRECTLY INTO A SHIP:
Aspen Petroleum Scheduler and Aspen Refinery Multi-Blend Optimizer (MBO) allow the user to define a Blend Event where no destination tank is specified. This can be used for the purpose described. You can find more information in the Orion Help file documentation: Ind... |
Problem Statement: What is the difference between override and accept in Aspen Fleet Optimizer Data Quality Manager? | Solution: The Accept Button is one of the control buttons. This button is used to accept sales and inventory information for forecasting after the exception has been addressed and corrected. When an exception appears, the Accept Button is grayed out and disabled until the sales, inventory, and delivery information is r... |
Problem Statement: Deploying Aspen Engineering Suite with Microsoft Application Virtualization 4.6.
Brief Overview
App-V is a virtualization technology where the virtualization happens at the application level. This enables the encapsulated Microsoft App-V-enabled application(s) to run within an isolated environment,... | Solution: Please download and review the attached MS Word document.
Keywords: None
References: None |
Problem Statement: The Domain security feature in aspenONE Process Explorer enables the search engine in aspenONE Process Explorer (A1PE) to return only Aspen InfoPlus.21(IP.21) tags user has read access to in the search results.
Domain Security can be enabled or disabled for A1PE by using the aspenONE credentials uti... | Solution: provides the correct procedure for implementing Domain Security on A1PE when connecting to Aspen InfoPlus.21 Servers .Solution
In order to secure tags in the Search Engine, Process Data must extract the security IDs for the Active Directory Groups and Users that have read access for each tag from the source I... |
Problem Statement: This knowledge base article describes how to output the MBO event number to the CUSTOM DATA section. | Solution: STEP1: Use macro BCI_Custom to output AB_BLN_EVENTS.SEQ to a range,
STEP2: Set the Custom Default data cell refer to that range,
In effect, when BCI execute macro BCI_Custom for each event, the SEQ will be read as the Custom data.
A sample to output SEQ as Text Custom Data NOTE1 is attacked to thisSolut... |
Problem Statement: How to perform a sensitivity analysis with the cost results calculated by Activated Economics. | Solution: The costing result variables calculated by Aspen Process Economic Analyzer (APEA) are not directly accessible within Aspen Plus (the results are fetched to Aspen Plus GUI, but the variables behind are not manageable in A+). Therefore, we cannot target them when performing sensitivity analysis or optimization ... |
Problem Statement: How do you model a multiple effect evaporator? | Solution: Attached is an example of a multiple effect evaporator for sugar syrup production The sugar syrup is evaporated in a 4-effect evaporator.
Components:
sucrose (C12H22O11)
water (H2O)
Physical Properties:
Properties for the material streams are computed using the UNIFAC Activity Coefficient Model.
The ASME Stea... |
Problem Statement: What is the recommended method for customizing column sets using WCF? | Solution: The correct method when using WCF is to modify the <product>.user.display.config file.
The WebHelp in V7.3 CP2 includes examples for how to do this. There is a new section called Web Interface Customization and a topic Setting Display Attributes for User-Defined Entries. This describes the correct way to do t... |
Problem Statement: Aspen Audit & Compliance Manager (AA&CM) includes a utility called Audit & Compliance Database Backup/Restore. The utility allows users to Back up, Archive, Purge, Restore and perform Integrity Checks on their AA&CM database.
Many users have tried to use this utility as an upgrade utility from on... | Solution: When upgrading from one database version (and/or moving from one vendor) to another, use the vendor tools (MS SQL Server or Oracle) and follow these steps:
1. In the AA&CM Administrator console view, expand the Aspen Audit & Compliance Administrator and <Audit & Compliance Server name>.
2. Right-click on Serv... |
Problem Statement: The prerequisite for reading this KB article is a basic understanding of how XML is used for configuring the User Interface of V8 Aspen SCM.
As you might know, one of the most commonly used UI elements is the PropertyView. A PropertyView can be of the type Command, List, Table, String, Bool. For ea... | Solution: # 136528).
Special After Commands include:
!Save: To Save pending changes of all the properties in all the Stategroups
!Refresh: To Refresh all the properties in all the Stategroups without discarding the pending changes
!Reset: To discard all the pending changes in all the Stategroups
!ForceRefresh: To for... |
Problem Statement: What are the advantages of using PCWS instead of DCS graphics for operator interface to DMCplus controller? | Solution: Production Control Web Server (PCWS) is the AspenTech standard HMI for all APC applications. However some of the plant in the industries use a custom DCS interface as the HMI for DMCplus application. Most of those plants have DMCplus applications installed before PCWS became a standard. Here are some of the a... |
Problem Statement: This Knowledge Base article (KB) is intended to give readers a basic knowledge of Linear Programming (LP). It will be the first in a series of articles under the topic `Linear Programming using Aspen Supply Chain Management?. This KB is intended for users who do not have any background in LP or in As... | Solution: I. Need for optimization:
a. The first step is to analyze the problem and understand the requirement of optimization. There are two models of TV sets: LCD and Plasma.
b. In most models like this one, the choice is either to reduce the costs or to increase the profit. Since the cost values are no... |
Problem Statement: How do I upgrade the BCI (Blend Control Interface) model from 2004.1 to higher version ? | Solution: How do I upgrade a BCI model (Honeywell BPC - MBO format) from version 2004.1 to a higher version?
1. Add BCI table [Components] to the model tree.
2. Open BCI table [CustomMap].
3. If the CustomMap table doesn't have column [Product], please add column [Product] to it.
Which tables are m... |
Problem Statement: What is AspenTech's recommended list of things that I need to do to test Aspen Fleet Optimizer? | Solution: Create a test database. The database should be a snapshot of the production data from the point that the dispatch plans have been created and finalized for a given day and new sales and inventory data has been received for the next day Install the new application.
Perform a complete backup of the test databas... |
Problem Statement: When same database is used for Aspen Petroleum Scheduler (APS) and Aspen Refinery Multi-Blend Optimizer (MBO), it would be better (as best practice) if there is an option in CONFIG table or settings to select which TNKINV table final user prefers to use: TNKINV or TNKINV_MBO table in MBO. | Solution: In V7.3.1 a new option called Tank Inventory Table, has been added to the Model Settings tab of the Settings dialog box, that allows you to specify which table to use when retrieving and storing beginning tank inventory data either the TNKINV_MBO or TNKINV table
Additionally, a new keyword, TANKINV_CHOICE, h... |
Problem Statement: When you create new custom screens, you might want to add them to your Navigation Pane. The following article provides an example with detailed steps on how to create a new node in the Navigation Pane and how to connect that to the created XML screen. | Solution: All the items in your Navigation Pane are created using XML codes. The XML codes are usually written in a table called CNAVBAR. This table is referenced in CGLOBAL set, which is the primary set responsible for all User Interface elements. Both the CGLOBAL and CNAVBAR tables are a part of the standard CAPS lib... |
Problem Statement: What is the outside air velocity used in a detailed heat flux model of the depressuring utility? | Solution: Currently by default, the outside heat transfer calculation is based on natural convection i.e. wind speed = 0
This means that outside air is, by default, assumed to be in laminar flow.
Keywords: depressuring, detailed heat flux, air velocity
References: None |
Problem Statement: The new Aspen SCM GUI interface is built using XML. This knowledge base article demonstrates how to build custom screens in the new Aspen SCM GUI by programming in XML. This is a follow-up article of the previous | Solution: #136528 'XML Tutorial 3 - How to build or edit a sample User Management Screen'. The case file containing the previousSolution can be found in the attachment.
Example
Keywords: None
References: None |
Problem Statement: How is the NRTL-SAC model used in Aspen Plus? | Solution: NRTL-SAC is a segment contribution activity coefficient model, derived from Polymer NRTL model. NRTL-SAC can be used for fast, qualitative estimation of the solubility of complex organic compounds in common solvents. Conceptually, the model treats the liquid non-ideality of mixtures containing complex organic... |
Problem Statement: How can I use the ChargeBal block in electrolyte simulations? | Solution: The description in the help is a bit misleading. You should place the ChargeBal block in the flowsheet to ensure its feed is the tear stream of the convergence loop you want to maintain in charge balance. The following diagram should help to clarify.
We can see that the ChargeBal block will be the first bloc... |
Problem Statement: The new Aspen SCM GUI interface is built using XML. This knowledge base article demonstrates how to build custom screens in the new Aspen SCM GUI by programming in XML. This is a follow-up article of the previous | Solution: #136585 'XML Tutorial 5 - How to build or edit a sample User Management Screen'.
Example
Keywords: None
References: None |
Problem Statement: What Aspen Fleet Optimizer databases need the Bind Number As Float workaround set in the ODBC drivers? | Solution: In Aspen Fleet Optimizer it is very import to check the workaround Bind Number As Float in the ODBC driver if you are using a Oracle database. If you are using a SQL database you will not need to set up this workaround. If you are using an Oracle database and do not have this checked at the Oracle driver le... |
Problem Statement: Basic XML knowledge in Aspen SCM is a prerequisite for reading this document. | Solution: s # 135832, 135995, 136528, 136585, 137107 and 138030 are recommended, if you are looking to gain basic XML knowledge in Aspen SCM.
In the previous versions of Aspen SCM, dialogs were used to build prompts. Though dialogs can still be used in V8, XML is a more elegant way to build prompts. This article expl... |
Problem Statement: The new Aspen SCM GUI interface is built using XML. This knowledge base article demonstrates how to build custom screens in the new Aspen SCM GUI by programming in XML. This is a follow-up article of the previous | Solution: #135995 'XML Tutorial 2 - How to build or edit a sample User Management Screen'. The case file containing the previousSolution can be found in the attachment.
Example
Keywords: None
References: None |
Problem Statement: This Knowledge Base article (KB) is the second in a series of articles under the topic `Linear Programming using Aspen Supply Chain Management?. This series is intended for users who do not have any background in LP or in Aspen Supply Chain Management (SCM) programming; the pre-requisite for reading ... | Solution: 135232. The screenshots in this document were created using Aspen SCM version 7.3.1. At the end of this tutorial, users will be able to formulate and solve simple Linear Programming problems in Aspen SCM.
Example Problem:
The problem statement is the same as the previous KB in the series, except that there ... |
Problem Statement: How do I read the feed tank inventory of a previously empty tank? | Solution: The example below uses the demo model to demonstrate how to populate an empty tank with feedstocks. First let's add a new tank TK5, so this tank will be empty.
1. Then simulate all.
2. Open Audit Inventory Dialog and select a day that is in the model horizon.
3. Select refresh and Populate... |
Problem Statement: The new Aspen SCM GUI interface is built using XML. This knowledge base article demonstrates how to build custom screens in the new Aspen SCM GUI by programming in XML. This knowledge base article will prepare you to build a custom screen or add new objects to existing screens that already exist in t... | Solution: Example
Keywords: None
References: None |
Problem Statement: Basic XML knowledge in Aspen SCM is a prerequisite for reading this document. | Solution: s # 135832, 135995, 136528, 136585, 137107 and 138030 are recommended, if you are looking to gain basic XML knowledge in Aspen SCM.
In the previous versions of Aspen SCM, dialogs were used to build prompts. Though dialogs can still be used in V8, XML is a more elegant way to build prompts. This article expl... |
Problem Statement: What is the best report to run in Aspen Fleet Optimizer to review dispatched loads? | Solution: The Terminal orders report is a report that should be run daily to review what loads the system still thinks are going to be delivered. This report can be sorted by customer, retain, runout and shift. The report shows all orders in the AFO database, forecast and order-entry, sorted by the criteria chosen by t... |
Problem Statement: Can ETs be enabled for Ramp variables? | Solution: ETs are NOT RECOMMENDED to be enabled for use with Ramp variables.
The reason is that when ETs are used with Ramp variables and if the ET is active (and is between the operating limits) then the move plan would use ETs in preference to the RAMPSP as a target for the move plan. ET for ramps will work as a simp... |
Problem Statement: Can you provide us with template source code so we can compile our own UBML.dll ?
Are there any general guidelines or generic instructions available to help us with this request? | Solution: UBML-(User Blend Model Library) provides you with the ability to incorporate user-defined blending correlations into your model. In addition, UBML supplements ABML, which provides a common set of correlations.
There is a sample Correlations.cpp file provided after Aspen Refinery Multi-Blend Optimize(MBO)/Asp... |
Problem Statement: How can I adjust the rebar-to-concrete ratio in my project? | Solution: To adjust the rebar-to-concrete ratio in your project, you need to modify the Rebar Quantity field in the external civil file. This is done by first creating a new copy of the file in your library, next making your modifications, and lastly selecting the modified external civil file to use in your project. He... |
Problem Statement: This document contains examples for the new features implemented in the COMPR model in version 2004.
The new features in version 2004 include:
1. Perform Turbine/Expander calculation using performance curves.
2. Ability to correct for the mass flow rate when away from design temperature a... | Solution: Three example files are attached to demonstrate these features:
1. turb_all.bkp includes several turbine blocks using different types of performance curves
In the block Setup sheet choose Use performance curves to determine discharge conditions. Enter the performance curve information in the Performan... |
Problem Statement: How do I regress mixture viscosity data? | Solution: The Aspen Physical Property System has a number of built-in viscosity models. The most common models are the Andrade/DIPPR/PPDS/IK-CAPE Pure Component Liquid Viscosity and the Andrade Liquid Mixture Viscosity. The model used for a particular property method can be found on the Properties | Property Methods | ... |
Problem Statement: While using XPRESS, there might be some scenarios when you end up with the same row or column names. Previous versions of XPRESS used in earlier versions of Aspen SCM did not cause any errors or warnings. But, if you do the same in V8, there would be an error message in the log file: 1030 Error: Dup... | Solution: details the changes that were made in XPRESS to handle duplicate row entries.
Solution
The old versions of Xpress did not check for duplicates when you load names into the Optimizer. It was causing some issues when trying to look up a column or row by name. So when FICO (XPRESS vendor) updated the software, t... |
Problem Statement: This Knowledge Base article (KB) is the third in a series of articles under the topic `Linear Programming using Aspen Supply Chain Management?. This series is intended for users who do not have any background in LP or in Aspen Supply Chain Management (SCM) programming; the pre-requisites for reading ... | Solution: # 135232 and # 135398. The screenshots in this document were created using Aspen SCM version 7.3.1. At the end of this tutorial, users will be able to formulate and solve simple Linear Programming problems in Aspen SCM.
Example Problem:
A logistics company is trying to figure out the dispatch schedule of LC... |
Problem Statement: Example in Visual Basic: how to handle case studies with inconsistency errors. | Solution: In Aspen HYSYS, when we perform a case study if an inconsistency error appears, the whole case study analysis is interrupted. ThisSolution provides an example using VBA Automation that will allow you to perform a case study and handle an inconsistency issue. In order to see the code press Alt+F11 in Excel. Th... |
Problem Statement: How do you model a flue gas desulfurization process? | Solution: Aspen Plus backup (.bkp) file used to model this process are attached:
Filename
Description
FGD.bkp
Flue Gas Desulfurization Flowsheet
Process Description
Sulfur oxides (SOx) are removed from boiler flue gas using a wet Flue Gas Desulfurization (FGD) process. A slurry containing calcium carbonate is used to... |
Problem Statement: How do I adjust the Stress Relief calculations without affecting the other activities involved with CS Pipe Erection? | Solution: Stress Relief is reported under COA 317, which is CS Pipe Erection. You can use indexing to adjust the entire COA 317, but this will also affect other activities reported under COA 317 besides the Stress Relief numbers. A more direct way to adjust Stress Relief numbers is to use the Exceptions field in the CO... |
Problem Statement: How can I get only my ON/OFF valves in their own COA? | Solution: Valves are reported by material type, and each material has mutiliple valve types, including the ON/OFF valves. There are two basic steps to get the ON/OFF valves into a new COA.
1.) Create the new COA.
In the attached COA file we have created a new COA 338 which will contain our ON/OFF ball and slide gate ... |
Problem Statement: Is it possible to model the penultimate effect in free-radical polymerization? | Solution: The free radical polymerization reaction model in Aspen Polymers assumes that the various reaction rates involving polymer molecules only depends on the concentration of the terminal segment; the concentration of the next-to-last (penultimate) segment is ignored. This type of “terminal model� has been sho... |
Problem Statement: How can I get Economic Evaluator to use a different tube (or shell) piping material than used in my tube (or shell) exchanger design? | Solution: By default, Economic Evaluator will use for the tube (or shell) side piping of an exchanger the same material as the exchanger tube(or shell) side material design (unless a user has specifically specified a piping material type under Pipe Item Details). You can change the default material for the tube (or she... |
Problem Statement: I am developing my Aspen Properties application using the option you suggested: Multiple Property Methods. I can see that I can retrieve the currently active (global) property method OPSET name by calling PPUTL_GOPSET. But, I cannot find a way to
(1) Determine how many Property Methods were spe... | Solution: There is an undocumented subroutine PPUTL_LSOPST that you can call to determine the number and names of the Property Methods specified in a simulation:
CALL PPUTL_LSOPST(KOPS, NAME, IST, INUM )
VARIABLE I/O TYPE DIMENSION DESCRIPTION AND RANGE
KOPS O I - ... |
Problem Statement: How do I use a template file to remove the 'hours for the rental equipment operators' from a project when their wages are included in the rental equipment cost? | Solution: The template feature is new in V7.3 and allows you to specify most anything in the Project Basis View that you would like to use routinely in projects. The attached template is an example of using a template to specify that the rental equipment operators are included in the cost of the rental equipment. This ... |
Problem Statement: How can I compare the binary parameters retrieved from Aspen Properties to the parameters obtain from experimental data? | Solution: The present example shows how to compare two sets of binary parameters by using the Analysis tool in Aspen Properties.
This example library can be applied not only when we want to compare binary parameters from different sources, but also when we need to specify another set of binary parameters at another ran... |
Problem Statement: How do I specify a certain percentage of pipe supports to be sent to a remote shop? | Solution: In V7.3.2, a new input field - Pipe supports in remote shop (PERCENT) - has been added to Design Basis | Piping Specs | General with the default being 0 percent. If pipe is being sent to remote shop, a portion of the total number of pre-fabricated pipe supports (based on value specified in the new field), wil... |
Problem Statement: Is it possible to use the Aspen Properties Excel Add-In to create isotherms ternary diagrams for a system water/ethanol/methanol? | Solution: This example illustrates a ternary diagram for a system water/ethanol/methanol, set up in Aspen Properties. Hence, it is necessary to have the Aspen Properties Add-in available in MS Excel. In order to link Aspen Properties with MS Excel the Aspen Properties Add-in, follow these steps:
· Open MS Excel:
... |
Problem Statement: How do I model an Atmospheric Crude Tower using HYSYS? | Solution: A different model of an Atmospheric Crude Tower. Here three side strippers are used and the tower has one pump around. For another Crude Tower example, please see R-1.hsc in the Samples directory that gets installed with HYSYS.
Keywords: Atmospheric; Crude; Tower; Example
References: None |
Problem Statement: In the standard reports, some of my items get reported with the correct COA but under a COA Group that I don?t want it to be associated with;. if I want to change this, how can I do it? | Solution: Changing the COA group to which a given COA is associated to requires some customization of the report database. For example, if you wish to move COA 473 - Building Furnishing (usually reported under ?Build - Arch?) to ?Other Civil? user needs to write an UOD query that will update one record (QSUMCOA and QSU... |
Problem Statement: Is it possible to use the solid unit operation models with salts resulting from precipitation reactions specified in the chemistry? | Solution: See the attached file for a simple example. The feed is a brine with water and sodium chloride (NaCl which is fully dissociated to Na+ and Cl-). The EVAP block evaporates the water, concentrating theSolution so that salt NaCl(s) precipitates. In the Flash2 block, the particle size distribution (PSD) has been ... |
Problem Statement: When does equipment get 'field touch-up' paint? | Solution: In order to get equipment field touch-up paint, the equipment paint option at project or area level needs to be set to Remote Shop. Field touch-up paint will not be generated unless equipment paint is generated.Solution 131081 explains when equipment will get paint.
In the attached file, there are two areas... |
Problem Statement: Contingency is different than what specified in the project basis when pipe line job is considered.
According to project basis contingency is 20 percent and when you evaluate the project in project summery it shows 16.7% but in project data sheet it shows 20%. | Solution: First Note that this is PipeLine job - which is handled as a Prime Contractor job(IE No contractors) so the reports are slightly different.
The reason is because the 16.7 is the % of the total cost, not the percentage applied in the calculation(or the % of the Base Cost).
The 20% specified in the design basis... |
Problem Statement: How can a create a Standard Basis for a Pipeline area? | Solution: To create a new Standard Basis for a Pipeline area, you must start with the existing Pipeline Standard Basis and make a new copy which you can then modify.
1.) From the Library mode, go to Library | Basis for Capital Costs | Inch-Pound and click on Pipeline
2.) Click on the Right Mouse Button and choose D... |
Problem Statement: How can I delete Field Office Costs COA 81-85 from reporting in my project? | Solution: To remove your Field Office Costs, which are COA 81, 82, and 85, you can use the Engineering Workforce adjustment By Phase. Go to:
Project Basis View | Engineering Workforce | By Phase
Once there add three columns and adjust Home Office Construction Services, Construction Management, and Field Office Supe... |
Problem Statement: How do I model and optimize a granulation or coating process in Aspen Plus? | Solution: The attached Aspen Plus V8.2 demo will show you how an industrial urea granulation process can be modeled in Aspen Plus V8 and how the process can be optimized with regards to throughput. There is an associated PDF to guide you through the steps.
This example will cover
· Basic description of the gr... |
Problem Statement: Are there any examples that demonstrate how the project component graphical model (P&ID) can be modified, or customized, in Aspen Capital Cost Estimator? | Solution: All process equipment, and some plant bulk, come with installation bulks when they are added in the project scenario and the cost is evaluated. These installation bulks can either be the default internal volumetric models which are written into the program or external volumetric models which are saved externa... |
Problem Statement: When does a vessel get paint? | Solution: Vessels do not get paint unless one of the following conditions is satisfied:
1. User enter # of final or primer coats on the installation bulk | Paint form for the equipment, or
2. The equipment meets the internal criteria for getting paint. For vessels, the criteria is a) the material of constru... |
Problem Statement: How do you model a vacuum pump in Aspen Plus? | Solution: You can model a vacuum pump using the a compressor model. Aspen Plus has both a multistage compressor model MCOMPR and a single stage polytropic or isentropic compressor COMPR . The attached simulation file uses both MCOMPR and COMPR for a simple vacuum pump application.
In the COMPR block, the exit temperatu... |
Problem Statement: How can you have an Economic Evaluation product estimate the area size if it forces you to put in the area length and width? | Solution: The Economic Evaluation products have the ability to estimate an area size based upon a loose arrangement of equipment in the area. To be able to do this, there must be equipment in the area. When you first create an area there is no equipment and since it is possible using the Economic Evaluation products to... |
Problem Statement: What is the default length of pipe per fitting going to remote shop when pipe fabrication type is RMT? | Solution: The default length of pipe per fitting going to remote shop is 10 ft when pipe fabrication type is RMT. Prior to V7.3.2, this value cannot be changed. In V7.3.2, a new input field - Length/fitting to remote shop is added to Design basis | Piping Specs | General form, which allows for users to change this para... |
Problem Statement: Pump error: Specified head is out of range. My pump is set up as 60 Hz with 1800 rpm and 3600 feet of head, but when I do an evaluation, I get the Specified head is out of range error; what do I need to do to remove the error? | Solution: TheSolution is either remove the 1800 rpm speed or provide 3600 rpm speed for the 60 HZ pump.
If you have specified 1800 rpm (30 Hz) as the pump speed and 3600 feet as head it will show the error of specified head is out of range. At 1800 rpm we can only design up to 1000 FT. 3600 feet is out of range in this... |
Problem Statement: How do I find the project total I/O Count? | Solution: To find the total I/O count of a project:
1. Go to Project basis view | Design basis for capital cost | Systems | Process control, open the input form for each control center in the project, and enter 1000 for Software cost per I/O count.
2. Evaluate the project.
3. In the CAP_REP.ccp rep... |
Problem Statement: How do you regress heat of mixing (HLXS) data without sacrificing VLE results? | Solution: In order to do the regression properly, both HLXS data and VLE (TPXY, TXY or PXY) data needs to also be regressed.
In the attached example, if heat of mixing data is regressed for an ethanol-water system (as in case R-1), the VLE results are then very poor. If you first use Tools\Analysis\Binary to generate a... |
Problem Statement: The attached example demonstrate aspen Polymer capability of modeling Melamine Polymerization Process. | Solution: Melamine is a phenol-formaldehyde polymer/resin. Phenolic resins are produced through the reaction of formaldehyde with phenol and/or one or more substituted phenol derivatives such as cresol or xylenol. The resulting products can be linear, branched, or network polymers depending on the relative amounts of t... |
Problem Statement: How to model a kettle reboiler using the shortcut method | Solution: With the shortcut calculation method you can simulate a heat exchanger block with the minimum amount of required input. The shortcut calculation does not require exchanger configuration or geometry data.
Although you cannot model a kettle reboiler with the shortcut method, you can use a transfer block to tran... |
Problem Statement: When importing a simulator file and map the components in Aspen Process Economic Analyzer, utility streams will be generated for proper equipments and the cost of the utility streams can be viewed in the utility summary. How can I create new utility streams and use them to replace the ones connected ... | Solution: In the sample file (ETOH.izp) installed on your computer, utility streams ICUST-IN and ICUST-EX have been created based on existing utility Steam@100psi defined under Project Basis | Process Design | Utility Specifications and connected to equipment HEAT, after importing and mapping. (under C:\Documents and S... |
Problem Statement: Example of DRS of UNIFAC-PSRK parameters from VLE data | Solution: This example aims to guide user to regress UNIFAC-PSRK parameters from VLE data. The experimental data are for the propane/hydrogen sulfide system at 298.15 K (Figure 1). See the attached files.
Figure 1. Pxy Diagram for propane-hydrogen sulfide at 298.15 K.
The UNIFAC-PSRK groups for the components are s... |
Problem Statement: Is there an example showing how to use the Steel Library file in Aspen Capital Cost Estimator? | Solution: The attached file is a simple model of a double diameter tower where we used a Steel Library file to override the default price that Aspen Capital Cost Estimator used for the Ladders and Platforms for the project. Initially, the file showed, based upon the 2009 Cost Database, a price of $7,953.85/ton ($3.98/l... |
Problem Statement: How does the use of the DIAG_LEVEL parameter change the diagnostic messages from OOMF? | Solution: We have Aspen Plus bkp file and an OOMF script(attached) with DIAG_LEVEL parameter set to a value of 7. The default value of DIAG_LEVEL is 4.
Please follow the steps:
Step 1: Open attached bkp file and run it.
Step 2: In the EO Command line in Control Panel enter, Invoke test_obj 3. You will notice t... |
Problem Statement: Jump Start: Assay Management in Aspen HYSYS Petroleum Refining | Solution: This document is intended as a “getting started” guide. It will cover the process of adding an assay to an Aspen HYSYS Petroleum Refining model, characterizing it, and integrating it with the complete process simulation. It will also show you how to generate plots and extract information about these assays fo... |
Problem Statement: How do you model a Triple-Effect Evaporator in Aspen Plus? | Solution: Feed-forward multi-effect evaporators improve efficiency by using vapor from each stage as heat source for the subsequent stage. Pressures (and temperatures) must decrease from one stage to the next. The modeling challenge is to determine steam flow required to meet the desired concentration.
In this example,... |
Problem Statement: Sensitivity analysis model and/or Design Spec block not taking into account vary/defined variables and is not showing any results after I run the simulation. This happens even if it is specified properly. | Solution: When the user specifies a sensitivity analysis tool, it is important to remember to include in the calculation, the variables which are in Active streams and blocks. If you deactivate the blocks or streams (and block variables) which are included in the sensitivity analysis Input specification, Aspen Plus wil... |
Problem Statement: How to use data reconciliation with ACM? | Solution: The attached example shows how to use data reconciliation with ACM. Data reconciliation is simply a special case of estimation. This is available for steady state simulation only.
The example is a heat exchanger where the temperature and flowrates of inlet streams have been measured. The temperature of the ou... |
Problem Statement: Is it possible to vary the Selector Block´s feed stream using a sensitivity analysis? | Solution: If you want to use a sensitivity analysis to vary the feed stream to a block you first need to setup a Selector block with your possible feed streams.
The variable that you will vary is:
Variable: Name of the variable
Type: Block-Var
Block: Selector block name
V... |
Problem Statement: Example of modeling liquid-liquid equilibrium in an electrolyte system using Apparent Components in a Flash3 block and True Species in an RGibbs block. | Solution: Liquid-liquid (LLE) systems can be modelled with ElecNRTL, but there are several important steps that must be taken. SeeSolution 4402 for details. Only the Apparent Component approach can be used.
Starting in 2006, RGibbs will allow chemistry and electrolytes calculations using true components. With this enh... |
Problem Statement: How to toggle between two streams? How to choose one of the two stream? Example in steady state and dynamics mode. | Solution: Toggle between two streams can be performed with the help of Spreadsheet and a dummy Mixer operation. If you can use both of the streams as feed of the unit operation, you don't need to use the dummy mixer.
Example in steady state mode:
The attached Toggle btn Two Streams SS.hsc, if temperature of stream 1 ... |
Problem Statement: How do I model a batch dryer in Aspen Plus? | Solution: The attached Aspen Plus V8.2 demo will show you how a batch dryer can be simulated in Aspen Plus using the clock method. There is an associated PDF to guide you through the steps.
This example will cover
· Application of the clock method using calculator, transfer and sensitivity blocks to model a b... |
Problem Statement: For feed streams (streams not coming from any other block) we can easily set a different value for the temperature of the substreams. How can we achieve the same for a stream coming from another block? One such scenario is to work around the limitation that RPLUG allows only one feed stream, but for ... | Solution: See the attach example for Aspen Plus v7.3 and higher. Note that you must have a fortran compiler installed to use this feature.
The first calculator C-1 right after the HEATER does all the setting. It contains the code to set the mixed substream temperature to TMIXED and the cisolid temperature to TSOLID. Th... |
Problem Statement: There is no PENALTY column available for T.TRANSFER in MPIMS or XPIMS. How can I implement user defined penalties for streams transfers? | Solution: Please refer to the example below:
Stream LNX is transferred from plant B to C via mode R. It has a MIN limit of 2.5 and MAX limit of 5. I removed these limits from T.TRANSFER as I am going to implement them by control rows:
* TABLE
TRANSFER
*
Inter-Plant Transfers
TEXT
MIN
MA... |
Problem Statement: Example of power distribution of a two-stage compressor linked with a common shaft | Solution: The attached dynamic case is an example for a two-stage variable speed compressor linked with a common shaft. The compressors are driven by gas turbine and transmitted to the shaft. The turbine power and gear ratio of the compressors are specified in a spreadsheet.
The linker power is the total power transmit... |
Problem Statement: How do I validate the Fisher Equation for Liquid Flow through a Valve in HYSYS Dynamics? | Solution: It is possible to validate the Fisher Valve for liquid flow through a spreadsheet using HYSYS Dynamics. The equation for the liquid flow through the valve, using the Fisher Valve Equation is documented in the Online Help Guide. The Fisher Equation for liquid flow through the valve is also documented below:
... |
Problem Statement: Do you have any example of modeling a heated pipe Aspen Plus Dynamics? | Solution: Refer to the attached example that considers the following scenarios:
1. Considering heat transfer with environment
2. Including uniform heat flux
3. Pipe initially heated at elevated temperature
Keywords: pipe, heat flux, environment
References: None |
Problem Statement: How do I automate a login process in a workspace? | Solution: Please follow below mentioned steps to use a code explained at the end of thisSolution,
Open blank excel workbook
Open VB editor for excel
Add reference for AZClientTools Version 16.2 from tools |
Keywords: VBA
References: s
Paste above code in VB editor for This workbook objects
Save this file (as *.xlsm fil... |
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