Framework for Using Building Information Modeling to Create a Building Energy Model

Abstract

The use of building information modeling (BIM) to create a building energy model (BEM) compared with traditional simulation practices offers significant timesaving potentials by minimizing efficiency issues, legal disputes, added costs, and delays. The BIM-BEM strategy avoids remodeling the building to create the BEM by exchanging architectural information to complete the energy analysis. However, most existing frameworks do not simultaneously describe the BIM-BEM process and related technical aspects to be followed during the design process. Therefore, this paper proposes a comprehensive BIM-BEM framework initially created based on theoretical and field investigations and then enhanced by a trial investigation using a testing case. The proposed framework is illustrated in an easy-to-follow process map that includes work/data flows and specifies data exchangers and information requirements. The framework is validated using a complex case study to demonstrate its applicability for different BEM tools. The proposed framework intends to provide the industry with a useful and generic process for BIM-BEM that enables professionals to create proper BIM and BEM to complete energy analysis during the design process.