Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Basic Investigation for the Development of Cleaning Technology with Ejector

이젝터를 이용한 세정기술 개발의 기초연구

  • Park, Sang Kyoo (School of Mechanical Design Engineering, Chonnam Nat'l Univ.) ;
  • Yang, Hei Cheon (School of Mechanical Design Engineering, Chonnam Nat'l Univ.)
  • 박상규 (전남대학교 기계설계공학부) ;
  • 양희천 (전남대학교 기계설계공학부)
  • Received : 2016.08.16
  • Accepted : 2016.11.14
  • Published : 2017.01.01
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Abstract

The paper presents a basic investigation for the development of cleaning technology employing an annular nozzle ejector for application to cleaning water supply and air bubble generation. The quantitative flow characteristics of the primary and suction flows, the qualitative visualization behavior of the mixed jet, and the percentage concentration of pesticide residual at different values of the ejector screw pitch were investigated. It was seen that the primary flow rate increased, while the mass ratio decreased with increase in screw pitch. Further, the mixed jet behaved like a buoyancy jet or horizontal bubbly jet, and the residual concentration of pesticide first decreased and then increased with increase in screw pitch.

본 논문은 환형노즐 이젝터를 이용하여 세정수 공급과 기포생성을 동시에 할 수 있는 세정기술 개발을 위한 기초연구를 목적으로 한다. 환형노즐 이젝터의 피치변화에 따른 구동 및 부유체의 정량적 유동특성과 세정수조에 분출되는 분류의 정성적 가시화 이미지를 분석하였으며, 세정물의 농약 잔류물 성분의 농도를 검증하였다. 피치가 증가하면 구동유량은 증가하는 반면에, 유량비는 감소하였다. 피치가 증가하면 분류는 부력분류나 평형분류 거동을 나타내며, 잔류농약의 농도는 감소 후 증가하였다.

Keywords

References

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