압력 제어 방식을 이용한 고효율 기류제어 기술개발

In this study, we introduced the improved airflow-direction-control-method without the control-blade using PCM(Pressure Control Method) and the new indoor unit of cassette type air conditioner as its actual application. In order to demonstrate the feasibilities of PCM, we defined the two plane - the pressure difference forming plane, and flow direction control plane - in 2-Dimensional domain and analyzed the control factor and the effect. Because the direct wind of 4-way cassette cause discomfort and is often unable to reach all areas evenly, we developed the circular type cassette by this technology which distribute fast and even airflow in all directions. We examined the thermal comfort index ADPI(Air Diffusion Performance Index) in the residential space about two types. Experimental result shows that circular type is 13% higher than 4-way type due to high-efficiency flow control and even air distribution.