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Issues and limitations in BIM to BEM for Energy Simulation
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 Title & Authors
Issues and limitations in BIM to BEM for Energy Simulation
Choi, Jun-Woo; Park, Cheol-Soo;
Recently, BIM based energy simulation has been highlighted due to expectancy for efficient reuse and sharing of building information. The BIM based energy simulation is based on a belief that an automatic conversion of BIM to a BEM (Building Energy Model) can be seamless and such conversion would be much more efficient than a manual conversion. This paper aims to investigate whether the aforementioned belief is valid or not. In this study, four people were asked to develop a BIM model for a given small office building. Then, four BIM files were exported from a BIM authoring tool (Revit) to gbXML files. The gbXML files are then converted to EnergyPlus input files (.idf) by OpenStudio. Four Revit files, four gbXML files and four idf files as well as EnergyPlus simulation results were cross-compared. It has been concluded in the paper that currently, seamless conversion from BIM to BEM is not realistic and expert's judgment and intervention is indispensable.
Building Information Modeling;Building Energy Modeling;Interoperability;Energy Simulation;
 Cited by
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