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A/C 실내기 배관 형상에 따른 냉매 유동 소음 특성에 관한 연구
배성원(Seong Won Bae),허덕(Deok Huh),오세기(Saikee Oh),정백영(Baek Young Chung),오일권(Il Kwon Oh) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
The distribution control of refrigerant flow is one of the basic technique to enhance system efficiency. However, if engineers forget to control the refrigerant flow speed in all operation range, refrigerant flow mal distribution becomes a noise source. The refrigerant flow noise should be checked and controlled at the lowest air flow mode which is the most silent mode and frequently used in night time.
최한림(Han-Lim Choi),김경환(Kyung-Whan Kim),최호선(Ho-Seon Choi),오세기(Saikee Oh),정백영(Baek-Young Chung) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
The transmission noise characteristics through the ventilating duct was conducted numerically using SYSNOISE. A ventilating system is usually composed of mufflers for preventing noise transmission from the ventilator into indoors through the ducts and distributors for transferring air to or from each room. The transmitted noise characteristics of distributors which have different branch angles and of mufflers having different shapes were analyzed numerically. New duct element combining a muffler and a T-shaped distributor was developed for better noise reduction in this paper. New element's performance was shown numerically.