Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

This study presents a comparison analysis on characteristics of energy performance by different LOD (Level-Of-Details) for BEM (Building Energy Model). Although building energy simulation has been interested in planning energy conservation measures (ECMs) for both new and exist buildings, there are lack of specific studies on the detail levels for energy modeling to get reliable energy performance data on buildings. Energy simulation for a residential building with five different level of details for a residential building have been conducted to understand how the simplicity of BEM impacts on the energy performance of design day and annual energy consumption. As a result, it is necessary to separate the conditioned space from the non conditioned space as the simplification of the geometric in order to reduce the labor of building energy simulation. Also Simplification of material characteristic is suitable for understanding the load characteristic by setting in detail according to the baseline model.