Our implementation shows that BIM2BEM (1) enables BIM models to be translated into ModelicaBEM models, (2) enables system interface development based on the MVD for thermal simulation, and (3) facilitates the reuse of original BIM data into building energy simulation without an import/export process. In order to demonstrate and validate our approach, simulation result comparisons have been conducted via three test cases using (1) the BIM-based Modelica models generated from Revit2Modelica and (2) BEM models manually created using LBNL Modelica Buildings library. The implementation of the intermediate class package enables system interface ( Revit2Modelica) development for automatic BIM data translation into ModelicaBEM. The class diagram represents the information and object relationships to produce a class package intermediate between the BIM and BEM.
The process model demonstrates object-mapping between BIM and Modelica-based BEM ( ModelicaBEM) and facilitates the definition of required information during model translations.
Using data modeling, we created a Model View Definition (MVD) consisting of a process model and a class diagram. The approach ( BIM2BEM) has been developed using a data modeling method to enable seamless model translations of building geometry, materials, and topology. This paper presents a new approach to translate between Building Information Modeling (BIM) and Building Energy Modeling (BEM) that uses Modelica, an object-oriented declarative, equation-based simulation environment.
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