| Title |
Performance Variation of the Air Curtain for Various Discharge Angles in Feating Space |
| Keywords |
단일 제트 에어커튼 ; 토출각도 ; 하향토출 ; 차단효율 Single jet air curtain ; Discharge angle ; Downward-blowing ; Sealing efficiency |
| Abstract |
Air curtains are widely used for gates of shopping mall, warehouse, cold stores and refrigerated display cabinets. The purpose of the air curtain is to reduce the infiltration of outdoor air and heat loss from the air conditioning space to ambient air. The discharge angle of air curtain is very important as the sealing efficiency is affected by it. This paper presents a performance of single jet air curtain in heating space when the discharge angle of nozzle changes. A numerical simulation is used to study the influence of various parameters on the efficiency of the downward-blowing air curtain device which is installed inside of the wall above the door. The performance of the air curtain is evaluated by sealing efficiency which provides the assessment of the energy savings. A condition of discharge angle that has the highest sealing efficiency is proposed. |