Heat Transfer Enhancement in a Circular Rod Using Mixing Vane

Mixing Vane에 의한 단일봉에서의 열전달 촉진

  • 이상섭 (한국전력기술(주) 원자료설계개발단) ;
  • 유성연 (충남대학교 기계설계공학과) ;
  • 김병채 (충남대학교 기계설계공학과 대학원) ;
  • 김은기 (한국전력기술(주) 원자료설계개발단) ;
  • 임덕재 (한국전력기술(주) 원자료설계개발단) ;
  • 정장규 (한국전력기술(주) 원자료설계개발단) ;
  • 김석범 (한국전력기술(주) 원자료설계개발단)
  • Published : 2003.11.05

Abstract

Naphthalene sublimation technique is used to investigate the average and local heat transfer from the circular rod, and to determine the average and local heat transfer from the circular rod with and without square wing type mixing vane in axial flow. The experiments are performed for a circular rod and flat plate with and without mixing vane in wind tunnel. In comparison with flat plate and circular rod in axial flow, averaged Nusselts number is increased 2 times as the increase of Reynolds number with mixing vane. Longitudinal vortex induced by square wing type has the stronger vortex strength, so square wing type vortex generator shows an effect further in downstream.

Keywords