한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제21권2호
  • /
  • Pages.1-10
  • /
  • 2022
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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배기가스 세정장치내 유체 유동에 대한 다공성 매질 적용 기반의 전산해석적 연구

Computational Study on the Application of Porous Media to Fluid Flow in Exhaust Gas Scrubbers

  • 홍진표 (창원대학교 첨단방위공학과정) ;
  • 윤상환 (창원대학교 첨단방위공학과정) ;
  • 윤현규 (창원대학교 첨단방위공학과정) ;
  • 김래성 (창원대학교 첨단방위공학과정) ;
  • 안준태 (창원대학교 기계공학과정)
  • Hong, Jin-pyo (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Yoon, Sang-hwan (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Yoon, Hyeon-kyu (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Kim, Lae-sung (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • An, Jun-tae (Graduate School of Mechanical Engineering, Changwon National University)
  • 투고 : 2021.10.19
  • 심사 : 2021.11.02
  • 발행 : 2022.02.28
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초록

Exhaust gases emitted from internal combustion engines contain nitrogen oxides (NOx) and sulfur oxides (SOx), which are major air pollutants causing acid rain, respiratory diseases, and photochemical smog. As a countermeasure, scrubber systems are being studied extensively. In this study, the pressure drop characteristics were analyzed by changing the exhaust gas inflow velocity using a scrubber for a 700 kW engine as a model. In addition, the fluid flow inside the scrubber and the behavioral characteristics of the droplets were studied using CFD, and the design compatibility of the cleaning device was verified. Flow analysis was performed using inertial and viscous resistances by applying porous media to the complex shape of the scrubber. The speed of the exhaust passing through the outlet nozzle from the inlet was determined through the droplet behavior analysis by spraying, and the flow characteristics for the pressure drop were studied. In addition, it was confirmed through computational analysis whether there was a stagnation section in the exhaust gas flow in the scrubber or the sprayed droplets were in good contact with the exhaust gas.

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참고문헌

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