| Title |
Analysis of Comfortable Environment in the Classroom with Humidification and Ventilation in Winter |
| Authors |
정성일(Seongir Cheong) ; 성내리(Naili Sheng) ; 김두현(Doohyun Kim) ; 이재근(Jaekeun Lee) ; 황유진(Yujin Hwang) ; 박종훈(Jonghoon Park) ; 서석장(Seokjang Seo) |
| Keywords |
실내공기질 ; 환기 ; 가습 ; 예상온열감 ; 열쾌적성 Indoor air quality ; Ventilation ; Humidification ; Predictedmean vote ; Thermal comfort |
| Abstract |
In this paper, the effects of ventilation and humidification on thermal comfort and indoor air quality(IAQ) were evaluated in a classroom when a heat pump system was operated in winter. Thermal comfort parameters, such as temperature, relative humidity, globe temperature and air velocity, were measured at 9 points in the classroom. The concentration of CO2 and total suspended particles(TSP) in the classroom were measured in order to analyze IAQ. Temperature distribution in the classroom was decreased by 2∼5℃ when the ventilation system and the humidifier were operated. When the relative humidity was adjusted to 60% by operating the humidifier and the ventilation system, the predicted mean vote(PMV) in the classroom was within the comfortable range of -0.5～0.5. When the ventilation system was operated, the average concentration of CO2 and TSP were decreased by 645 ppm and 0.17 mg/m3, respectively. This paper suggests the humidification and ventilation conditions to maintain the comfortable environment in the school classroom in winter experimentally. |