Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Experimental Study on Spray Performance of Nozzles for Autonomous Fire Fighting Monitor

자율형 소화모니터 노즐의 분사 성능에 대한 실험 연구

  • Rhyu, SeongSun (Institute of Advanced Transportation Vehicles, Chungnam National University) ;
  • Kim, HyoungTae (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Seo, JeongHwa (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
  • 유성선 (충남대학교 첨단수송체연구소) ;
  • 김형태 (충남대학교 선박해양공학과) ;
  • 서정화 (충남대학교 선박해양공학과)
  • Received : 2021.09.23
  • Accepted : 2022.01.24
  • Published : 2022.04.20
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Abstract

A systematic experimental study is carried out for the fire fighting monitor nozzle of 65A diameter to design and manufacture a new nozzle with better water spray performance than available domestic nozzles. The nozzle inlet pressure, flow rate and reach for the discharged water from the nozzle are measured by utilizing the experimental facility consisting of two pumps and piping system with a flow meter and pressure gauges. It was found that the baffle position and baffle head chamfering were the most sensitive design factors to be remarkably changed in the flow rate of the discharged water. Also, It was confirmed that the baffle position and the water exit area had the significant effect on the change in reach distance. The results obtained from this study are expected to be used effectively to design new nozzles with excellent spray performances and also to validate numerical analysis results for evaluating the water spray performance of fire fighting monitor nozzles.

Keywords

Acknowledgement

본 연구는 대한민국 정부(산업통상자원부 및 방위사업청) 재원으로 민군협력진흥원에서 수행하는 민군기술협력사업의 연구비 지원으로 수행되었으며(협약번호 UM19304RD3), 이에 감사드립니다.

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