An Experimental Study on the Noise Characteristics and Reduction of a Ventilating Fan System

환기팬 시스템의 소음특성과 저감에 관한 실험적 연구

  • 김덕한 (서울산업대학교 산업대학원 기계공학과) ;
  • 이동훈 (서울산업대학교 에너지환경대학원 에너지시스템공학과) ;
  • 권혁정 ((주) 엑 타 기술연구소) ;
  • 김동윤 ((주) 엑 타 기술연구소) ;
  • 이종석 (서울산업대학교 산업대학원 기계공학과)
  • Published : 2005.11.25


This paper introduces an experimental study for the noise characteristics and reduction of a ventilating fan system. For the purpose of noise reduction of it, an absorptive duct silencer filled with a glass fiber has been conventionally utilized. However, a glass fiber has some disadvantages like hygiene and secondary pollution problems. In order to overcome these problems, in this paper, a perforated duct silencer has been applied to the ventilating fan system. For the designing of a perforated duct silencer, the transmission losses for various perforated panel systems are measured and compared with their sound absorption performances.