| Title |
Air Distribution Performance According to the Gap Opening ofa Temperature Controlled Diffuser |
| Keywords |
Air distribution performance index ; ADPI, 기류분포 성능지표 ; Effective draft tem-perature ; EDT, 유효 드래프트 온도 ; Diffuser ; 디퓨져 ; Opening ; 간극 |
| Abstract |
This study has been conducted in order to develop a temperature-controlled round pan diffuser with variable-openings. Flow visualization was performed to investigate the airflow patterns according to gap openings. The velocity profiles were measured using an omni-directional anemometer for two cases, i.e. a horizontal and a vertical discharge condi-tions. Numerical simulation also confirms there is a narrow range of gap openings where a horizontal discharge shifts to a vertical discharge. The air distribution performance index in-creases abruptly when the air discharge shifts from vertical to horizontal direction. |