The "Design Institute for Physical Properties" DIPPR is a Technical Society of the American Institute of Chemical Engineers AIChE . DIPPR is one of best worldwide known sources for critically evaluated thermophysical property data. DIPPR 801 is the pure component database of DIPPR. The database contains 34 thermodynamic constants and 15 temperature-dependent properties (with recommended model paremeters) for currently 2330 substances of industrial priority (as of 2016).
DECHEMA as well as DIPPR/AIChE produce and publish thermophysical property data since decades. Both organizations share the vision to disseminate the best in class thermophysical property data to users in industry and research. Therefore the DIPPR-801-database is now distributed by the DECHEMA within Europe.
All of the applicable property values are available for each of the compounds in the database. Where no experimental data are available, established and well-evaluated methods are used to predict the property value to provide the user with a complete dataset for each chemical.
Thorough, multi-dimensional analysis of the data by leading thermophysical property experts produces recommended values for all properties for each chemical in the database. While all the raw data are included in the database, the recommended values represent piece by piece weeks of analysis by thermodynamics experts using the composite of all the information in the database.
DIPPR 801 could be used as standalone database within MS-Access, in combination with the DIPPR Interface and Data Evaluation Manager (DIADEM) Software, and also in combination with the DETHERM database using the native DETHERM formats.
Since 1998 Brigham Young University has served as the primary researcher for the DIPPR project 801. BYU also handled the public licensing for this project under the direction of the American Institute of Chemical Engineers (AIChE). However, effective April 1, 2009, AIChE began directly servicing all public licenses to allow BYU to focus on research in order to better serve your physical property needs. If you have any questions, please email us at di...@aiche.org. Thank you!
SuperPro Designer uses at least one and optionally six other data sources. The first (required) data source, is "SPD System DB v13". It contains information about components, mixtures, heat transfer agents, etc. as data that are provided by Intelligen, Inc. The database file that contains all this information is "PDSystem.v13.accdb". Without proper access to this data source your SuperPro Designer program will not start. You will receive an error message indicating that the System DB Is Inaccessible.
"SPD User DB v13" is a MS-Access database prepared with the same relational tables as the main ("System") database but it is extensible by the user. From the start it contains all the 'basic' resource definitions that users may need as well all 'essential' resource definitions that users MUST have access (e.g. the definition of component "Oxygen", "Nitrogen" and "Water"). It also contains definitions for other essential resources e.g. "Steam" (as a heating agent) or "Operator" as a labor resource. Users can introduce their own definitions of resources and their descriptions will be kept in this file ("PDUser.v13.accdb"). Even though after initial installation on a server machine, all logged users share the same user's database file, each user may (if needed) personalize his/her own copy of the database by copying the original file (as supplied with the installation CD) to a new location of their choice, and then, while running SuperPro Designer, access the dialog under Databank / Location, etc., and set the new location for their own User DB. For more details on how to personalize the User Database check out the help topic behind the menu option: Databanks / Availability, Passwords & Locations.
The third data source "SPD DIPPR DB" provides access to a small, demo version of the DIPPR data base (in relational database format) copied by the installation script. It simply demonstrates the ability of SuperPro Designer to access more component data, as contained in the commercial version of DIPPR. For users who already own a copy of DIPPR, linking to the DIPPR database is as simple as visiting the Database / Edit Location dialog in the program's main menu. If you don't have a copy of DIPPR and wish to obtain one, please consult SuperPro Designer's on-line help facility for DIPPR sales contact information.
Finally, the last two databases do NOT come pre-installed with SuperPro Designer. If a SuperPro Designer user has already purchased a license for the PPDS database, then it can be accessed by SuperPro. PPDS provides single component property data and binary (phase equilibrium) data. If you have a valid license for PPDS, you can visit the dialog under Databases / Availability, Passwords & Locations and hook-up your PPDS database files with SuperPro Designer's data sources for such data. For more details on how to accomplish this, simply click on the "Help..." button of the dialog.
Contains user-specified extensions to the system database, such as user-introduced components, mixtures, heat transfer agents, etc. All users on a single machine installation may use the same file or each user may use their own file.
MUST be available (for read/write) at all times.
Contains a sample DIPPR database with few components and their properties. Shown as a demonstration of the ability of Pro-Designer to be able to use the commercial version of DIPPR (must be purchased separately).
Does NOT need to be available at all times.
A sample file is provided and copied during installation. Users must purchase full file by themselves.
The last data source mentioned above ("SchedulePro Recipe DB") will become available to SuperPro Designer users as soon as SchedulePro has been installed on their environment. Exporting a recipe to this database will allow SchedulePro users to import its data from within SchedulePro and possible combine multiple recipes in order to explore issues that may arise in multi-product manufacturing. For a more thorough analysis and evaluation of process schedules, users are strongly encouraged to evaluate the companion program from Intelligen: SchedulePro.
The location where the above files are copied depends on the selection of the 'Aux Folder' during installation. All above database files are copied into a "DBases" sub-folder under the selected Aux Folder. However, each end user of the program (on the target PC), will have a chance to relocate the files to an area of his/her own choice (possibly in a private area under their user domain) and direct the program to use that file whenever the application is started from that user's profile. For more information on how to accomplish this task, check the help topic behind the menu option Databanks / Availability, Passwords & Locations or see Databases: Availability, Passwords & Locations Interface.
ProSim is one of the few distributors of the DIPPR database from AICHE (American Institute of Chemical Engineers). This database is the main reference for the thermophysical properties of pure components and contains the updated and controlled properties of numerous components, including all industrially relevant components.
I'm currently creating a database with new compounds to be able to run some process simulations. I have access to the DIPPR database and am trying to implement the equations present there for different thermodynamic properties in DWSIM.
When for example trying to define the solid heat capacity (ok, not the most important but the one that I certainly remember causing problems) for my component: I have data according to Eq. 102 (A = 1890, B = 0.79267 and C,D and E being equal to 0) from DIPPR.
When entering the data in DWSIM, choosing the same equation, and pushing the button "View regression" it however seems that DWSIM is not able to calculate the data. This error also appeared for some other equations when some parameters were equal to zero.
It can of course be worked around by fitting the data with another equation but maybe this is a bug? Or have I missed something?
If you do have a relation with it's parameters (e.g. from DIPPR database) you may enter these parameters and the formula ID directely without running a regression. But be aware of the units issue as explained above. If the parameters from literature are different to the units of DWSIM parameters you have to convert them prior to entering!
You may also have a look into the user database. This is a xml file which may be inspected by you. You will find that the parameters and the formula ID from from compound creator parameter fields are stored in the component definition.
Just realised that my example of butyraldehyde was not the best to publish as it already is present in the databases provided (butanal). Nevertheless I'm still suspecting the points I mentioned.
I actually went on trying to calculate an equilibrium reaction:
2 moles of 1-butanol 1 mole of 2-ethylhexanol and 1 mole of water
2 C4H9OH 1 C8H18O + 1 H2O
The component I created is 2-ethylhexanol (2-EH). I created an .xml database and entered the data. BUT I realised when checking the component properties for 2-EH that the enthalpy of formation and gibbs free energy of formation at 25C (ideal gas) are set to zero!!!! When checking the text file the values I stored using the compound creator are well present. I changed manually in the simulation (not getting the equilibrium reactor to work either :( ). Am attaching my .xml file and the simulation based on it.
Is something with my installation wrong maybe? Feel a bit stuck.
p.s. This component Butyraldehyde is already available in the Chemsep database and doen't need to be entered by you. Components may have different names. The best way to find out is to enter CAS-Number in the component selection field during simulation setup.
Open DWSIM with an active internet connection and you'll get Update 33, which fixes all reported issues. You may need to reload your user compound database or manually edit the compounds without formation data in the simulation using the Pure Compound Property Viewer.
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