Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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The Study of a Atomizing Characteristics of a Multi-Nozzle in a Fire Extinguishing System

소화 시스템에서 다중노즐의 분무특성에 관한 연구

  • Jung, Young-Kwon (Department of Mechanical Engineering, Pukyong University) ;
  • Kim, E. (Department of Mechanical Engineering, Pukyong University) ;
  • Kim, Young-Soo (Department of Mechanical Engineering, Pukyong University) ;
  • Kim, In-Kwan (Regional Innovation Center for New.Renewable Energy, Materials & Components, Pukyong University)
  • Published : 2008.06.25
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Abstract

This paper is about a study of atomizing characteristics of a Multi-Nozzle, which is an important part in a flooding water mist system for extinguishing fires broke out in ships. Comparing the results of experiments for the Single-Nozzle to that of numerical analyses, characteristics of a Multi-Nozzle can be found out. In situation of a Single-Nozzle’s, the atomizing angle was $34^{\circ}$. And in situation of Multi-Nozzle that combined with 5 single-nozzles, the atomizing angle increase to $125^{\circ}$. The effective area is 3.7 times of the former. The quality factor will reduce, if the diameter of the atomizing region of the nozzle reduces. Although the atomizing angle is reduced because of the atomizing property, the value of SMD still shows a good result.

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