Title Synthetic Envelope Thermal Performance for Satisfying the Building Energy Efficiency Grade(1++) of a Small-scale Building
Authors 박선효(Park, Sun-Hyo) ; 정용호(Jung, Yong-Ho) ; 안병욱(Ahn, Byung-Wook)
DOI https://doi.org/10.5659/JAIK.2021.37.7.143
Page pp.143-150
ISSN 2733-6247
Keywords Small-scale building; Optimizing energy consumption; Design condition; building energy efficiency grade(1++)
Abstract The purpose of this study was to propose a synthetic envelope thermal performance for small-scale buildings to satisfy the building energy efficiency grade 1++, which is the standard for zero-energy building certification. It was found that the correlation between the average heat transmission rate by wall area and the heating energy demand was very low. And the correlation between the average heat transmission rate by floor area and the heating energy demand was very high. Therefore, it would be desirable to apply the average heat transmission rate by floor area as the synthetic envelope thermal performance. Design conditions for the primary energy consumption to be less than 140kWh/m² should satisfy the average heat transmission rate by floor area of 0.45W/m²K or less, and install renewable energy when it exceeds 0.45W/m²K in the Jungbu 2 area