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

In non-residential buildings, the impact of windows on overall building energy performance is significant. However, domestic commercial and office buildings do not effectively reflect climate characteristics and various thermal and visual aspects of windows due to incomplete building code and lack of reference data for design practices. In this study, the non-residential prototype building energy model developed in 2016 is used to perform parametric simulation to present the design guides for key window design variables for each climate zone. Although the guide is not fully inclusive for all non-residential building, it is believed that at least the possibilities of this procedure will be verified. To this end, 1) the existing related research literatures were analyzed to confirm the pros and cons and the current best research results in Korea, and 2) an energy modeling overview and a parametric simulation plan were established to describe the detailed simulation procedure. 3) Through the simulation result analysis, the energy consumption change according to the window design variables was analyzed in the first step, and the energy performance additionally applicable external shade and daylight control was analyzed in the second step. 4) Finally, optimal window design variable values for each climate zone were derived. As a result, in the central and southern zones, the SC value with the minimum energy consumption was determined according to the U-factor and WWR of the window. In some cities in the southern and Jeju zones, energy performance was determined by the SC value rather than the U-factor. The external shade and daylight control system additionally enabled energy savings of up to 6%, whereas the determined design variable value was not significantly changed.