IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i18p6776-d916793.html
   My bibliography  Save this article

Analysis on the Effect of Obstruction on Sprinkler Skipping in Air Conditioner Room Fire

Author

Listed:
  • Ji Tae Kim

    (School of Mechanical Engineering, Chung-Ang University, Seoul 156756, Korea)

  • Jun Suk Nam

    (School of Fire Engineering, Gimcheon University, Gimcheon 39528, Korea)

  • Ryang Hoon Kim

    (School of Mechanical Engineering, Chung-Ang University, Seoul 156756, Korea)

  • Seung Yeon Kim

    (Fire Technology Research Center, Firebuster, Seoul 156756, Korea)

  • Hong Sun Ryou

    (School of Mechanical Engineering, Chung-Ang University, Seoul 156756, Korea)

Abstract

Sprinkler skipping is an important issue in fire spread. In general, two sprinklers are installed in air conditioner rooms at the ceiling and 30 cm below to avoid spray failure by energy recovery ventilator in the ceiling. However, there is a problem in that sprinkler skipping occurs in the air conditioner room. In this study, the sprinkler skipping phenomenon was analyzed through numerical analysis and the applicability of the open type of sprinkler operation method was reviewed. As a result, when the upper sprinkler works, sprinkler skipping occurred in all cases. The lower sprinkler shall not rise above the operating temperature of 68.3 °C with a maximum temperature of 65 °C. In particular, the spray failure caused by the energy recovery ventilator reduces the sprinkler head temperature by more than 8 °C by concentrating the spray droplets. As an open type, simultaneous operation of two sprinklers is capable of obtaining an appropriate fire extinguishing effect by covering the fire source with the spray of the lower sprinkler. The research results are expected to help in fire protection in buildings such as modern apartments with air-conditioned rooms.

Suggested Citation

  • Ji Tae Kim & Jun Suk Nam & Ryang Hoon Kim & Seung Yeon Kim & Hong Sun Ryou, 2022. "Analysis on the Effect of Obstruction on Sprinkler Skipping in Air Conditioner Room Fire," Energies, MDPI, vol. 15(18), pages 1-11, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6776-:d:916793
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/18/6776/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/18/6776/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6776-:d:916793. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.