인버터 열펌프의 사이클 최적화를 위한 오리피스의 형상변화에 관한 실험적 연구

To establish optimum cycle of the inverter-driven heat pump with a variation of frequency, the bypass orifice, which is a short tube having a bypass hole in the middle, were designed and tested. The flow characteristics of the bypass orifice were measured as a function of orifice geometry and operating conditions. The flow trends with respect to frequency were compared with those of short tube orifices and capillary tubes. Generally, the bypass orifice showed the best flow trends among them, that will enhance the SEER of inverter heat pump system.