Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Source Identification and Reduction of Noise for the Outdoor Unit of Room Air Conditioner

에어컨 실외기의 소음원 규명 및 소음저감

  • 서상호 (LG전자 리빙시스템연구소) ;
  • 임금식 (LG전자 리빙시스템연구) ;
  • 이내영 (LG전자 리빙시스템연구) ;
  • 진심원 (LG전자 리빙시스템연구소)
  • Published : 1998.12.01
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Abstract

The noise sources in the outdoor unit of RAC are identified by the sound intensity method. The main noise sources are compressor noise and fluid noise which is caused by the fan. heat exchanger and shroud. First. the fluid noise is reduced through the design of new fan and shroud. reduction of the system resistance by rearrangement of heat exchanger. and optimization of the complex parameter between the fan and shroud. Next, in order to reduce the compressor noise, the new shape of compressor mount and sound-proof material was applied. As a result, the overall noise was reduced by 4∼5dB (A).

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