DDBSP - Dortmund Data Bank Software Package 2015 Condensed Data Sheet Page 5 of 7 The first value is always the recommended one. Furthermore the values can be displayed in different units by selection the push-down button next to the currently used unit. If and which units are available depend on the entries of the conversion rules file. Dortmund Data Bank. With a view to the synthesis and design of separation processes, fitting and critical examination of model parameters used for process simulation and the development of group contribution methods 1973 a computerized data bank for phase equilibrium data was started by J. Gmehling and U. Onken at the University of Dortmund. DDBSP - Dortmund Data Bank Software Package 2015 Condensed Data Sheet Page 5 of 7 The first value is always the recommended one. Furthermore the values can be displayed in different units by selection the push-down button next to the currently used unit. If and which units are available depend on the entries of the conversion rules file.
The data base for electrical conductivities is a new part of the Dortmund Data Bank since 2014.
Few pure component electrical conductivities have been part of the PCP data bank but the mixture electrical conductivities haven't been collected systematically before approx. 2005 and published until 2014. Today even most pure component electrical conductivities are stored in the ECND data bank.
The electrical conductivities data bank is expected to grow rapidly because the already collected references often contain also electrical conductivities.
Electrical conductivities are an important information for multiple technical processes which include the use of isolators or electrically conducting components and mixtures.
A list of systems is available in our DDB Online Search system. The page might take some seconds to load because of its size.
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History:
The Dortmund Data Bank (DDB) was started in 1973 in the research group of Prof. Dr. J. Gmehling at the University of Dortmund (Chair of Reaction Engineering of Prof. Dr. U. Onken) with the compilation of VLE-data for normal boiling mostly organic compounds. It was later extended to cover also pure component properties, liquid-liquid equilibrium data, excess enthalpies, activity coefficients at infinite dilution, ...
In 1989 the DDB moved to DDBST GmbH (Oldenburg) which guarantees the regular updating of the data banks and at the same time develops additional data compilations, e.g. VLE of low boiling substances, VLE of electrolyte systems (ELE), excess volumes (VE), adsorption equilibria, .....
DDBST GmbH was founded in 1989. The main goal was a professional, commercially oriented development, support and further extension of data banks and calculation programs. The Dortmund Data Bank is the largest factual data bank for experimental data on pure components and mixtures and available via in-house versions and online (as part of DETHERM).
Mission:
Special attention is paid to:
Cooperation:
Dortmund Data Bank Software Package free. download full
Always the latest versions of the different data banks and program packages and a free support are supplied to the Chair of Industrial Chemistry at the University of Oldenburg for teaching as well as research purposes. This collaboration led to the development or further development of group contribution methods like UNIFAC, mod. UNIFAC, PSRK, VTPR and electrolyte models. The intensive use greatly improves our products reliability, quality, performance and applicability. In addition, numerous suggestions from industry as well as academic customers are incorporated into new versions of DDB and DDBSP.
Customers:
Customers of DDB and DDBSP include about 50 chemical and engineering companies throughout the world as well as university and research institutions.
Partners:
Through different alliances, products and services of DDBST GmbH are supplied throughout the world: The Dortmund Data Bank is supplied as in-house version by DDBST and DECHEMA, which are linked by a cooperation agreement. DECHEMA distributes the DDB as part of their data bank DETHERM. Aspen Tech Inc. distributes the DDB on CD together with the required software for data access. Aspen Tech and DECHEMA operate an Internet server for the distribution of data from DDB and DETHERM.
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