Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2009.06a
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- Pages.376-380
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- 2009
A Study on the Transmitted Noise Characteristics through the Ventilating Duct
환기용 덕트내의 전달소음 특성에 관한 연구
- Choi, Han-Lim (HAC Laboratory, LG Electronics) ;
- Kim, Kyung-Whan (HAC Laboratory, LG Electronics) ;
- Choi, Ho-Seon (HAC Laboratory, LG Electronics) ;
- Oh, Sai-Kee (HAC Laboratory, LG Electronics) ;
- Chung, Baek-Young (HAC Laboratory, LG Electronics)
- Published : 2009.06.25
Abstract
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.