Research And Development Of Chemical Physical Property Database Supporting Cape-Open Standard

Chemical physical property database has already become the important part to support chemical process design, simulation and optimization. It can be used not only as a stand-alone tool, but also integrated into the chemical flow simulation system and the special-purpose system. The chemical physical property database is the foundation of the chemical simulation software. At present, most of chemical simulation softwares use theirs own chemical physical property database, so the consistency and the interoperability of the data base is not satisfied when the process designers use several databases in an engineering process. European Union sponsors the CAPE-OPEN (Computer-Aided Process Engineering Open Simulation Environment) project, which defines the interface standards in the process simulator components and carries out the"Plug-and-Play"between the process simulation software components. CAPE-OPEN becomes the recent development direction in the fields of process simulation software. Developing the chemical physical property database supporting CAPE-OPEN standard has the vital practical significance to speed up the development of the chemical simulation software, enhance the enterprise competitive power and save the social resource.The main objective of the CAPE-OPEN standard is to make the components of the process simulator standardization, enable native components of a simulator to be replaced by those from another simulator, with minimal effort in as seamless a manner as possible. In this thesis, under Windows XP environment the database was set up by using of Microsoft Access. This database includes 4980 substances (mainly organic substance) and 89 base properties and model parameters. The storage and management of data was implemented. Physical property database was modeled by UML. This thesis established 5 actors of the database and designed 3 interfaces of the database and the methods with corresponding to each interface. The chemical physical property database component COmyPPDB supporting CAPE-OPEN standard was developed by means of VC++ language. Under Visual Basic environment, quoting the component COmyPPDB, the user program was developed. It supported the users to the data add, storage, inquiry, and retrieval in the database. It also supported physical properties calculation for 8 kinds of thermodynamic properties and 7 kinds of transport and physical properties. The physical property database component supporting CAPE-OPEN standard was developed by VC++ language, which can be integrated into other programs to implement data uniform conversion.Although the developed new software and its theoretical research are of basic scientific significance and practical value as this thesis showed, more future work should be done to perfect the function of the chemical physical property database supporting CAPE-OPEN standard.