빛환경 및 건물에너지성능을 통합 고려한 사무소건물용 DSSC BIPV창호 적정 투과율에 관한 연구 (A Study on the Optimal Transmittance of DSSC BIPV Window System in Office Building Considering Daylighting and Energy Performance)

서지정보

· 발행기관 : 한국건축친환경설비학회
· 수록지 정보 : 한국건축친환경설비학회 논문집 / 6권 / 3호 / 145 ~ 150페이지
· 저자명 : 정우람, 윤종호, 심세라

초록

The main purposes of windows in building are to take the view of the outside and to play the role in decreasing the lighting and heating energy through the daylighting. However, the increase in the energy lighting and cooling consumption is caused by the blind which is unreasonably operated in many curtain wall offices. The blind is closed about 75% of the time without being adjusted by occupants. In this study, the indoor lighting environment was analyzed when adjusting visible transmittance of DSSC BIPV window. Three visible transmittance of 10%, 20% and 30% were chosen for the analysis. The experiment was performed in the curtain-wall office building. Dynamic simulation considering lighting environment and building energy performance was conducted by using EnergyPlus as a software analysis tool. Useful Daylight Illuminance for lighting environment is analyzed both qualitatively and quantitatively as an evaluation index. Building energy performance analysis synthetically considered both DSSC BIPV window and lighting control.
As a result, securing the appropriate value of interior illuminance is possible because the low visible transmittance of DSSC BIPV window prevents the introduction of the excessive daylight. DSSC BIPV window is effective for cooling energy reduction in the summer because of low solar heat gain compared to the clear window. Futhermore, energy saving is additionally improved if adjusting lighting control was activated.
Consequently, when the DSSC BIPV window that enables the introduction of the suitable daylight is integrated with lighting control system, it further reduce both lighting and cooling energy consumption.

영어초록

The main purposes of windows in building are to take the view of the outside and to play the role in decreasing the lighting and heating energy through the daylighting. However, the increase in the energy lighting and cooling consumption is caused by the blind which is unreasonably operated in many curtain wall offices. The blind is closed about 75% of the time without being adjusted by occupants. In this study, the indoor lighting environment was analyzed when adjusting visible transmittance of DSSC BIPV window. Three visible transmittance of 10%, 20% and 30% were chosen for the analysis. The experiment was performed in the curtain-wall office building. Dynamic simulation considering lighting environment and building energy performance was conducted by using EnergyPlus as a software analysis tool. Useful Daylight Illuminance for lighting environment is analyzed both qualitatively and quantitatively as an evaluation index. Building energy performance analysis synthetically considered both DSSC BIPV window and lighting control.
As a result, securing the appropriate value of interior illuminance is possible because the low visible transmittance of DSSC BIPV window prevents the introduction of the excessive daylight. DSSC BIPV window is effective for cooling energy reduction in the summer because of low solar heat gain compared to the clear window. Futhermore, energy saving is additionally improved if adjusting lighting control was activated.
Consequently, when the DSSC BIPV window that enables the introduction of the suitable daylight is integrated with lighting control system, it further reduce both lighting and cooling energy consumption.

참고자료

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