대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)
- 대한설비공학회 2007년도 동계학술발표대회 논문집
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- Pages.404-409
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- 2007
밀폐형 왕복동 압축기에서 흡입라인 가스맥동이 압축기 성능에 미치는 영향
Effects of gas pulsation in the suction line of a hermetic reciprocating compressor on th compressor performance
- Lee, Yong-Ho (Department of Mechanical Engineering, Graduate school of Incheon University) ;
- Kim, Hyun-Jin (Department of Mechanical Engineering, University of Incheon)
- 발행 : 2007.11.30
초록
For a hermetic reciprocating compressor, it has been known that the gas pulsation in the suction line affects the compressor performance, and suction muffler design has been focused on both of noise reduction and minimum pressure drop across the muffler. Some studies have been carried out on the mutual interaction between the gas pulsation and the cylinder pressure to investigate some supercharging effects, but their efforts were limited on rather simple geometries. In this paper, interaction of the gas pulsation in the compressor suction line with cylinder pressure via suction valve motion has been calculated; for the gas pulsation analysis, modeling of Helmholtz resonators in series was used, and for cylinder pressure calculation, energy equations was set up for the gas inside the cylinder. For demonstration of this calculation method, four different types of suction line configurations for a hermetic reciprocating compressor were compared in terms of compressor performance and gas pulsation level.
키워드