| Title |
A Study on the Optimization of Discharge Grille of Outdoor Unit of Air Conditioner |
| Authors |
최석호(Seok-Ho Choi) ; 오세기(Sai-Kee Oh) ; 김현종(Hyun-Jong Kim) ; 진근호(Geun-Ho Jin) ; 오시영(Si-Young Oh) ; 김병순(Byung-Soon Kim) |
| Keywords |
토출 그릴 ; 에어컨 ; 프로펠러 휀 ; 실외기 Discharge grille ; Air conditioner ; Propeller fan ; Outdoor unit |
| Abstract |
The aerodynamic and aeroacoustic performance of discharge grille of outdoor unit of air-conditioner was investigated in this study. Discharge grille is one of outdoor unit’s important parts to affect the flow rate and Overall Sound Pressure Level(OSPL). New type of discharge grille was suggested based on the results of numerical simulation. To simulate the flow pattern near the propeller fan, commercial flow solver FLUENT was used. Sliding mesh method was used for rotating propeller fan and initial condition for unsteady model was calculated by Multiple Reference Frame(MRF) method. To minimize the interaction noise between fan blade wake and discharge grille, new discharge grille has radial rib which is aligned with trailing edge of fan blade. And inclined radial rib was adopted for reducing flow rate drop in discharge grille. The optimization of inclined angle of radial grille was performed experimentally. |