| Title |
A Study on Characteristics of Indoor-Air-Quality in Interior Space Equipped with System Air-Conditioner |
| Authors |
이상원(Sang Won Lee) ; 김종민(Jong-Min Kim) ; 염승원(Seung-Won Yeum) ; 조대근(Dae-Gun Cho) ; 최재붕(Jae-Boong Choi) ; 김석우(Seok-Woo Kim) |
| Keywords |
실내 공기질 ; 시스템 에어컨 ; 토출 각도 ; 토출 속도 ; 전산 유체 역학 Indoor-Air-Quality ; System air-conditioner ; Discharge angle ; Discharge velocity ; Computational fluid dynamics(CFD) |
| Abstract |
This paper investigates the indoor-air-quality (IAQ) characteristics of the interior space equipped with system air-conditioner. The behaviors of individual variables such as temperature, humidity and concentration of carbon dioxide (CO2) that influence on IAQ of the interior space were characterized under various cooling conditions by numerical and experimental studies. The numerical analysis predicting the temperature behavior of the interior space was conducted, and its results showed a good agreement with the experimental ones. The CO2 concentration and humidity were measured and their time dependent behaviors were monitored and analyzed. From the results, it was found that there existed the differences of the time-dependent behaviors of IAQ variables according to the locations. In addition, it is demonstrated that the large discharge angle of 45˚ made the temperature profile more irregular and the high discharge flow of 5.34m/s produced similar temperature profiles at three different sensing locations. Finally, the humidity of interior space was less sensitive to the changes of the air cooling conditions than the case of temperature and the CO2 concentration increase mainly depended on the number of individuals inside the space. |