한국분무공학회지 (Journal of ILASS-Korea)

  • 제24권3호
  • /
  • Pages.137-144
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  • 2019
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  • 1226-2277(pISSN)
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  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
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산업용 Y-jet 노즐의 설계변수 및 압력 조건에 따른 분무특성에 관한 연구

A Study on Spray Characteristics according to Design Parameters and Pressure Conditions of Industrial Y-jet Nozzle

  • 이상지 (경북대학교 기계공학과) ;
  • 홍정구 (경북대학교 기계공학과)
  • 투고 : 2019.07.08
  • 심사 : 2019.08.18
  • 발행 : 2019.09.30
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초록

The Y-jet nozzle has benefits such as simple design and wide operating conditions. Because of these benefits, it is used in various combustion devices including industrial boilers. The most important variables in the design of the Y-jet nozzle are the mixing chamber length, the supply diameter of the liquid fuel and gas, and the exit orifice diameter. In addition, because of the use of a twin-fluid, optimized data is required depending on the spray condition. In this study, spray experiment was carried out under the pressure condition of 7 bar or more, which is the spraying condition used in industry. There was no change in flow rate with the length of the Y-jet nozzle mixing chamber, but the difference in SMD was confirmed. Adjusting the exit orifice diameter is most important to achieve the desired flow rate. Changes in the liquid and gas inlet port diameters ratio were found to be help improve the operating range and significant difference in SMD was observed.

키워드

참고문헌

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