Measurement of Flow Characteristics of Digester Installed Tray Motioned Mixer by Using Radiotracer

방사성추적자를 이용한 수직교반형 소화조의 유동 특성 측정

  • Moon, Jinho (Radioisotope Research Division, Korea Atomic Energy Research Institute) ;
  • Park, Jang Guen (Radioisotope Research Division, Korea Atomic Energy Research Institute) ;
  • Kang, Munhu (Woojin Research and Development Center) ;
  • Jung, Sung-Hee (Radioisotope Research Division, Korea Atomic Energy Research Institute)
  • 문진호 (한국원자력연구원 동위원소이용연구부) ;
  • 박장근 (한국원자력연구원 동위원소이용연구부) ;
  • 강문후 ((주)우진 기술연구소) ;
  • 정성희 (한국원자력연구원 동위원소이용연구부)
  • Received : 2015.08.05
  • Accepted : 2015.08.25
  • Published : 2015.09.30

Abstract

The flow characteristics of fluid were measured using radioactive tracer in pilot scale digester with tray motion mixer. In consideration of the detection volume of the detector and the size of the digester, 20 detectors were installed in the digester. The radioactive tracer eluted 8 mCi of $^{68}Ga$ from $^{68}Ge/^{68}Ga$ generator was injected into the digester bottom. After radiotracer injection, the flow pattern was measured on the basis of the initial movement of the tracer until its diffusion completely. Most of tracer moved to the wall along the bottom of the digester, and then rose along the wall. The other tracer moved up along the mixer, and then moved to the wall direction along the surface.

Keywords

Acknowledgement

Grant : 연구로 동위원소 활용 융합기술개발 및 생산기술 선진화 사업

Supported by : 미래창조과학부