Abstract
This paper presents an algorithm to translate building topology in an object-oriented architectural building model (Building Information Modeling, BIM) into an object-oriented physical-based energy performance simulation by using an object-oriented programming approach. Our algorithm demonstrates efficient mapping of building components in a BIM model into space boundary conditions in an object-oriented physical modeling (OOPM)-based building energy model, and the translation of building topology into space boundary conditions to create an OOPM model. The implemented command, TranslatingBuildingTopology, using an object-oriented programming approach, enables graphical representation of the building topology of BIM models and the automatic generation of space boundaries information for OOPM models. The algorithm and its implementation allow coherent object-mapping from BIM to OOPM and facilitate the definition of space boundaries information during model translation for building thermal simulation. In order to demonstrate our algorithm and its implementation, we conducted experiments with three test cases using the BESTEST 600 model. Our experiments show that our algorithm and its implementation enable building topology information to be automatically translated into space boundary information, and facilitates the reuse of BIM data into building thermal simulations without additional export or import processes.
Highlights
The complex data exchange between architectural building models and energy performance simulation models has been a critical issue at the early design phase, and results in preventing the efficient use of building energy performance simulation in the design process [1]
Our experiments show that our algorithm and its implementation enable building topology information to be automatically translated into space boundary information, and facilitates the reuse of Building Information Modeling (BIM) data into building thermal simulations without additional export or import processes
This paper presents a new translation algorithm integrating BIM and Modelica-based object-oriented physical modeling (OOPM) for building thermal simulation
Summary
The complex data exchange between architectural building models and energy performance simulation models has been a critical issue at the early design phase, and results in preventing the efficient use of building energy performance simulation in the design process [1]. While the BIM-based BEM approach facilitates data translation between design models and energy models, additional efforts such as a manual model check need to be conducted in order to create a reliable energy model from a design model [12]. In this study to improve and enhance the translation of space boundaries between BIM and BEM, we investigated the development of an algorithm to convert BIM models without defining thermal space boundaries into object-oriented physical models for thermal simulation. The objectives of the algorithm development are: (1) to enable building spaces in BIM to be automatically translated into an OOPM-based BEM; (2) to enhance the usability of the original BIM data in building thermal simulation without human interference; and (3) to develop a more reliable. The term OOPM implies “Object-Oriented Physical Modeling” or “Object-Oriented Physical Model(s)”
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