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Numerical analysis of heat transfer and flow loss in a parallel plate heat exchanger element with longitudinal vortex generators as fins.

Author(s) : FIEBIG M., GUENTERMANN T., MITRA N. K.

Type of article: Article

Summary

The numerical simulation of eight configurations indicates: 1) fins in the form of rectangular winglets that generate strong longitudinal vortices have a great potential for heat transfer enhancement in plate-fin heat exchangers; 2) maximum average heat transfer enhancement of up to a factor five could be achieved at small angles of attack, 15 deg for the in-line, symmetric winglet vortex generator configuration when the vortex generator are attached alternating to both the plates. But the additional pressure loss is also high; 3) careful numerical calculations and/or experience are necessary for the selection of near-optimal vortex generator configurations.

Details

  • Original title: Numerical analysis of heat transfer and flow loss in a parallel plate heat exchanger element with longitudinal vortex generators as fins.
  • Record ID : 1996-2192
  • Languages: English
  • Source: J. Heat Transf. - vol. 117 - n. 4
  • Publication date: 1995/11
  • Document available for consultation in the library of the IIR headquarters only.

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