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Experimental investigation of local heat transfer in a square duct with continuous and truncated large ribs

Författare

Summary, in English

Repeated ribs are frequently employed to promote turbulence and to enhance heat transfer in various ducts. In the present study, liquid crystal thermography was applied to the study of heat transfer from a square channel having one surface heated at uniform heat flux and roughened by repeated ribs. The continuous and truncated ribs, having square sections, with height-to-hydraulic diameter ratio of 0.15, were deployed normal to the mainstream direction of flow. Detailed distributions of the local heat transfer coefficient were obtained at various Reynolds number within the turbulent flow regime. Averaged data were calculated in order to evaluate the augmentation of heat transfer by the presence of different ribs. Copyright

Avdelning/ar

Publiceringsår

2004

Språk

Engelska

Sidor

589-597

Publikation/Tidskrift/Serie

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD

Volym

375

Issue

1

Dokumenttyp

Konferensbidrag

Förlag

American Society Of Mechanical Engineers (ASME)

Ämne

  • Energy Engineering

Nyckelord

  • Liquid crystal thermography
  • Mass flow rate
  • Local heat transfer
  • Friction factor

Conference name

ASME International Mechanical Engineering Congress and Exposition, 2004

Conference date

2004-11-13 - 2004-11-19

Conference place

Anaheim, CA, United States

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0272-5673
  • CODEN: ASMHD8