Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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The Noise Reduction Effect by the Enclosure of Gas Turbines

가스터빈 차폐막의 소음 저감효과에 관한 연구

  • Park, Dae Hun (School of Mechanical and Aerospace Engineering, Graduate School, Gyeongsang National University) ;
  • Shin, Yoo In (Engineering Research Institute, Gyeongsang National University) ;
  • Park, Sung Gyu (School of Mechanical and Aerospace Engineering, Graduate School, Gyeongsang National University) ;
  • Kim, Kang Il (GT Design Team, Doosan Heavy Industries & Construction) ;
  • Song, Chul Ki (Engineering Research Institute, Gyeongsang National University)
  • 박대훈 (경상대학교 대학원 기계항공공학부) ;
  • 신유인 (경상대학교 공학연구원) ;
  • 박성규 (경상대학교 대학원 기계항공공학부) ;
  • 김강일 (두산중공업 GT 설계팀) ;
  • 송철기 (경상대학교 공학연구원)
  • Received : 2016.07.04
  • Accepted : 2017.01.17
  • Published : 2017.04.01
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Abstract

A gas turbine is the main equipment used in a combined heat and power plant. It generates a high sound pressure noise level. To reduce the noise level, an enclosure is installed around the turbine. The sound insulation performance of the enclosure affects the amount of external noise reduction. In this study, a sound transmission loss analysis is performed using the boundary element method to predict sound insulation performance according to the numbers and shapes of the supporter. Radiated noise analysis is also performed for the main external points of the enclosure using ray-acoustics. The results of these analyses are presented and a design plan is proposed that reduces the sound pressure noise level of the enclosure.

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References

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