| Title |
Energy Saving Effect of the Night Purge Control using ERV in a School Building |
| Authors |
Su-Yeon Kim ; Jung-kwan Won ; Jae-Hyung Kim ; Doo-Sam Song |
| DOI |
http://dx.doi.org/10.6110/KJACR.2016.28.11.421 |
| Keywords |
나이트 퍼지 ; 에너지 절감 ; 전열교환형 환기시스템 ; 축열 ; 트랜시스 시뮬레이션 Night purge ; Energy saving ; ERV ; Thermal storage ; TRNSYS simulation |
| 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. |