| Title |
Performance of a Reciprocating Compressor Equipped with Auxiliary Port |
| Authors |
이용호(Yong Ho Lee) ; 김현진(Hyun Jin Kim) |
| Keywords |
보조 흡입구 ; 체크밸브 ; 성적계수 ; 냉력 ; 압축기 입력 Auxiliary port ; Check valve ; COP ; Cooling capacity ; Compressor input |
| Abstract |
Auxiliary port which had been known to be used to reduce the expansion loss of a refrigeration system was applied to a R134a reciprocating compressor in a household refrigerator cycle with an intention of improving the compressor performance. Effects of the auxiliary port on the compressor performance was investigated by a computer simulation program. When a simple hole was made on the side wall of the cylinder as an auxiliary port and surrounding gas inside the compressor shell was assumed to be drawn into the cylinder through the hole, maximum COP improvement of 1.66% was obtained. With auxiliary port equipped with a plate type of check valve, maximum COP was raised to be 1.99%. COP improvement was more distinctive with decreasing the discharge pressure; COP improvement was 5% with discharge pressure of 7 bar. |