| Title |
Heating and Cooling Energy Consumption according to Ventilation Method of Multi-Use Establishments |
| Authors |
Somi Jang ; Yujin Ko ; Joonki Min ; Hiki Hong |
| DOI |
https://doi.org/10.6110/KJACR.2020.32.8.405 |
| Keywords |
강제환기; 열회수형 환기장치; 냉방부하; 난방부하; 재실자 밀도; 코로나19 Forced ventilation; Energy Recovery Ventilation(ERV); Cooling load; Heating load; Occupant density; COVID-19 |
| Abstract |
Recently, the pandemic virus COVID-19 causing many infections and cases of infection by from being in the same space with an individual or individuals without direct contact has been alarmingly increasing. Referring to COVID-19’s virulent propagation mechanism, it may be inadequately safe to maintain a distance of 1 to 2 m from an infected person to prevent infection, and frequent, effective ventilation is necessary to remove more virus particles. In this paper, a cafe was selected as a typical multi-use store. TRNSYS18 was used to compare and analyze the heating and cooling load values with the different types of ventilation methods. The analyses were: ventilation not performed, forced ventilation performed at 1500 CMH continuously for 24 hours (simple forced ventilation), forced ventilation according to the concentration of CO2 (reasonable forced ventilation), ventilation using a crossflow plate, and rotary energy recovery ventilation. Compared to the reasonable forced ventilation, the plate and the rotary energy recovery ventilation showed reduction ratios of 6.3% and 20.9% respectively. The heating loads increased by 16.1 times for simple forced ventilation and 6.2 times for reasonable forced ventilation compared to when ventilation was not performed. Conversely, the plate and the rotary energy recovery ventilation showed an increase of approximately two times only. |