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An Experimental Study to Develop the Perforated Panel System for Noise Chamber  

Lee, Young-Sup (서울산업대 철도시스템공학과)
Lee, Dong-Hoon (서울산업대 기계공학과)
Chung, Kwang-Seop (서울산업대 건축공학과)
Publication Information
Journal of the Korean Society for Railway / v.12, no.5, 2009 , pp. 806-810 More about this Journal
Abstract
The air conditioner system that is used in large structure, such as hospital, hotel, railway platform and train generate a high level noise generally. A chamber with sound absorbing materials, such as glass wool and polyurethane foam, are installed in this system to reduce the noise. However, these chambers cause environmental problems owing to the sound absorbing materials recently. Therefore, we develop noise chamber a built-in perforated panel resonance system as eco-friendly chamber to solve this problems. This noise chambers show the same noise reduction performance as the current chambers in the range above 500Hz. But, it reduces the noise up to 8dB(A) comparison to the current chambers in the range 200Hz~400Hz.
Keywords
Noise Chamber; Perforated Panel System; Transmission;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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