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Local effects of longitudinal heat conduction in plate heat exchangers.

Author(s) : CIOFALO M.

Type of article: Article

Summary

In a plate heat exchanger, heat transfer from the hot to the cold fluid is a multi-dimensional conjugate problem, in which longitudinal heat conduction (LHC) along the dividing walls often plays some role and can not be neglected. Large-scale, or end-to-end, LHC is always detrimental to the exchanger's effectiveness. On the contrary, if significant non-uniformities exist in the distribution of either convective heat transfer coefficient, small-scale, or local, LHC may actually enhance the exchanger's performance by improving the thermal coupling between high heat transfer spots located on the opposite sides of the dividing wall. [Reprinted with permission from Elsevier. Copyright, 2007].

Details

  • Original title: Local effects of longitudinal heat conduction in plate heat exchangers.
  • Record ID : 2007-1979
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 50 - n. 15-16
  • Publication date: 2007/07

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