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Issues and limitations in BIM to BEM for Energy Simulation

BIM 기반 건물 에너지 해석 자동화의 문제 및 고려사항

  • Choi, Jun-Woo ;
  • Park, Cheol-Soo
  • 최준우 ;
  • 박철수
  • Received : 2015.09.30
  • Accepted : 2016.02.15
  • Published : 2016.02.29

Abstract

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.

Keywords

Building Information Modeling;Building Energy Modeling;Interoperability;Energy Simulation

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Acknowledgement

Supported by : 국토교통부