Noise reduction of an extinguishing nozzle using the response surface method

Yo Hwan Kim, Myoungwoo Lee, In Ju Hwang, Youn Jea Kim*


研究成果: Article査読

5 被引用数 (Scopus)


An inert gas such as nitrogen is used as an extinguishing agent to suppress unexpected fire in places such as computer rooms and server rooms. The gas released with high pressure causes noise above 130 dB. According to recent studies, loud noise above 120 dB has a strong vibrational energy that leads to a negative influence on electronic equipment with a high degree of integration. In this study, a basic fire-extinguishing nozzle with absorbent was selected as the reference model, and numerical analysis was conducted using the commercial software, ANSYS FLUENT ver. 18.1. A total of 45 experiment points was selected using the design of experiment (DOE) method. An optimum point was derived using the response surface method (RSM). Results show that the vibrational energy of the noise was reduced by minimizing the turbulence kinetic energy. Pressure and velocity distributions were calculated and graphically depicted with various absorbent configurations.

出版ステータスPublished - 2019 11月 15

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 建築および建設
  • 燃料技術
  • 工学(その他)
  • エネルギー工学および電力技術
  • エネルギー(その他)
  • 制御と最適化
  • 電子工学および電気工学


「Noise reduction of an extinguishing nozzle using the response surface method」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。