| Title |
Experimental Study on the Cooling and Heating Characteristics of System A/C Applying the Digital Scroll Compressor |
| Authors |
전용호 ; 김대훈 ; 권영철 ; 장근선 ; 이윤수 ; 문제명 ; 윤백 ; 홍주태 |
| Keywords |
Energy efficiency ratio ; 에너지 소비효율 ; Capacity modulation ; 용량가변 ; PWM ; 펄스폭변조 ; Digital scroll compressor ; 디지털 스크롤 압축기 ; Cooling and heating characteristics ; 냉난방특성 |
| Abstract |
In order to investigate the cooling and heating characteristics of a variable- capacity system A/C applying a digital scroll compressor, the cooling and heating capacities and COP are measured by the psychrometric calorimeter. The capacity of the system is controlled by the digital scroll compressor, which is operated by controling PWM valve and the loading vs. unloading time. In the case of unloading compared that of loading, the consumption power of the compressor is about 11% and the capacity variation of the system A/C is within about 1%. When the system A/C is operated under the cooling and heating standard conditions, COP is nearly uniform but cooling capacity and heating capacity increase at minimum, rated and maximum modes. The system A/C applying the digital scroll compressor is effective for the range with high load or the width of large load variation. When the auxiliary heater is on, at the cold region, the system A/C produces the excellent heating capacity. |