Noise Reduction of a Ventilating Fan System using Micro-Perforated Panel

미세 다공판을 이용한 환기팬 시스템의 소음저감

  • 이종석 (서울산업대학교 산업대학원 기계공학과) ;
  • 송화영 (서울산업대학교 에너지환경대학원 에너지시스템공학과) ;
  • 이동훈 (서울산업대학교 기계공학과) ;
  • 권혁정 ((주)엑타 기술연구소) ;
  • 김동윤 ((주)엑타 기술연구소)
  • Published : 2006.05.01


This paper introduces an experimental study for the noise reduction of a ventilating fan system. For the purpose of noise reduction, conventionally an absorptive duct silencer filled with a glass fiber has been 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 its noise reduction performance.