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

The Society of Naval Architects of Korea (대한조선학회)
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Experiments for Pressure Drop of Scrubbing Layer in a Scrubber System

스크러버 내 충진층에서의 압력강하 특성에 관한 실험적 연구

  • Yong-Shik Han (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kyu Hyung Do (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kyungyul Chung (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Byungil Choi (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Hwalong You (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Changhyun Kim (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Minchang Kim (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM)) ;
  • Taehoon Kim (Innovative Energy Machinery Research Division, Korea Institute of Machinery and Materials (KIMM))
  • 한용식 (한국기계연구원 고효율에너지기계연구부) ;
  • 도규형 (한국기계연구원 고효율에너지기계연구부) ;
  • 정경열 (한국기계연구원 고효율에너지기계연구부) ;
  • 최병일 (한국기계연구원 고효율에너지기계연구부) ;
  • 유화롱 (한국기계연구원 고효율에너지기계연구부) ;
  • 김창현 (한국기계연구원 고효율에너지기계연구부) ;
  • 김민창 (한국기계연구원 고효율에너지기계연구부) ;
  • 김태훈 (한국기계연구원 고효율에너지기계연구부)
  • Received : 2023.03.15
  • Accepted : 2023.05.08
  • Published : 2023.06.20
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Abstract

According to the regulation on the pollution of the marine environment, SOx emission from ships has to be reduced. A SOx scrubbing system installed in a funnel of a ship is considered in order to reduce SOx emission. A scrubbing layer with a porous material is present in the funnel to increase the contact area between exhaust gas and water. In this study, experiments on the pressure drop characteristics in the scrubbing layer are conducted to investigate the effect of the scrubber on the engine load. The pressure drop according to flow rate of air instead of exhaust gas was measured for fillers such as sphere, pall ring and saddle in the scrubbing layer. First of all, porosity is experimentally measured for the three types of filler and it is confirmed that the porosity of the saddle-type filler was the largest. The pressure drop according to the change in air flow rate was measured for the three types of fillers in the scrubbing layer. As a result, the pressure drop was the smallest in the scrubbing layer with the saddle-type filler which has the largest porosity. In addition, the effect of spraying water flowing counter flow against air flow is experimentally examined. It is known that the pressure drop is increased because the air flow space is reduced when water is sprayed. In the case of the saddle, the pressure drop is about 1.5 to 2 times greater than that when only air flows at the optimum exhaust gas-water injection ratio.

Keywords

Acknowledgement

본 연구는 해양수산부 IMO 선박 국제규제 선도기술개발사업(과제고유번호:1525010933) 및 한국기계연구원 기본사업(액체수소 공급시스템 핵심 기자재 개발)의 지원을 받아 수행되었습니다.

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