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Noise Reduction of an Extinguishing Nozzle Using the Response Surface Method

Author

Listed:
  • Yo-Hwan Kim

    (Graduate School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Myoungwoo Lee

    (Graduate School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • In-Ju Hwang

    (Senior Research Fellow, Department of Future Technology and Convergence Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea)

  • Youn-Jea Kim

    (School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea)

Abstract

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.

Suggested Citation

  • Yo-Hwan Kim & Myoungwoo Lee & In-Ju Hwang & Youn-Jea Kim, 2019. "Noise Reduction of an Extinguishing Nozzle Using the Response Surface Method," Energies, MDPI, vol. 12(22), pages 1-13, November.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:22:p:4346-:d:287158
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    References listed on IDEAS

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    1. Gourieroux, C. & Laurent, J. P. & Scaillet, O., 2000. "Sensitivity analysis of Values at Risk," Journal of Empirical Finance, Elsevier, vol. 7(3-4), pages 225-245, November.
    2. Charles W. Carroll, 1961. "The Created Response Surface Technique for Optimizing Nonlinear, Restrained Systems," Operations Research, INFORMS, vol. 9(2), pages 169-184, April.
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    Cited by:

    1. Olga Gaidukova & Sergey Misyura & Igor Donskoy & Vladimir Morozov & Roman Volkov, 2022. "Pool Fire Suppression Using CO 2 Hydrate," Energies, MDPI, vol. 15(24), pages 1-23, December.
    2. Xinyi Zhao & Ye Lu, 2022. "A Comprehensive Performance Evaluation Method Targeting Efficiency and Noise for Muzzle Brakes Based on Numerical Simulation," Energies, MDPI, vol. 15(10), pages 1-18, May.

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