Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Energy Saving Effect of the Night Purge Control using ERV in a School Building

전열교환형 환기시스템을 이용한 학교건물의 나이트 퍼지 적용 효과 분석

  • Kim, Su-Yeon (Dept. of Civil and Environmental System Eng., Graduate school of Sungkyunkwan University) ;
  • Won, Jung-kwan (Dept. of Global Construction Eng., Graduate school of Sungkyunkwan University) ;
  • Kim, Jae-Hyung (Dept. of Global Construction Eng., Graduate school of Sungkyunkwan University) ;
  • Song, Doo-Sam (School of Architectural, Civil and Environmental Eng., Sungkyunkwan University)
  • 김수연 (성균관대학교 건설환경시스템공학과) ;
  • 원정관 (성균관대학교 글로벌건설엔지니어링학과) ;
  • 김재형 (성균관대학교 글로벌건설엔지니어링학과) ;
  • 송두삼 (성균관대학교 건설환경공학부)
  • Received : 2016.07.18
  • Accepted : 2016.09.13
  • Published : 2016.11.10
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Abstract

The indoor temperature of a building increases during the day due to solar radiation. This behavior is significant in school buildings that are finished with high thermal capacity materials. Moreover, in school buildings, windows cannot be opened until the class has finished owing to the security policy of schools. Consequently, classrooms maintain a high temperature throughout the morning. It is thus important to remove the indoor heat before the commencement of classes in order to reduce the cooling energy needed. The Energy Recovery Ventilator (ERV) system is currently being installed in school buildings for ventilating the classrooms. Night-purge control using ERV can be a good strategy to cool the classroom in advance of the operation of the cooling system. However, the optimal operation method of the ERV for night-purge control has not yet been reported. In this study, the effect of night-purge control with ERV in school buildings is analyzed by simulation method. The results of this study showed that the energy saving effect of night-purge control with ERV is most effective in the case of 2 hours operation prior to the commencement of the first lass and when enthalpy based outdoor air cooling is used.

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References

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