| Title |
The Effects of the Refrigerant Charge on the Performance of an Air Conditioner with Capillary Tube Expansions |
| Keywords |
Refrigerant charge ; 냉매충전량 ; Capillary tube expansion ; 모세관 팽창장치 ; Flowrate of refrigerant ; 냉매순환량 ; Cooling capacity ; 냉방능력 ; Split type ; 분리형 |
| Abstract |
A popular type of residential air conditioner is the split system which has two separate units; indoor and outdoor units. During field installation of the split system, the potential exists for not setting the charge exactly to the manufacturer's specifications. The objective of this study is to investigate the effects of the refrigerant charge on the performance of the air conditioner. An air conditioner with capillary tube expansions was tested for various refrigerant charges. The results indicated that the more charge resulted in the more flowrate of the refrigerant. The flowrate of the refrigerant was one of the most important factors to understand the effects of the charge on the performance of the air conditioner with capillary tube expansions. Under-charge results in wide region of superheated vapor of the refrigerant in the evaporator, while over-charge results in high temperature of the liquid refrigerant in the evaporator. |