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Measurement of the heat transfer coefficient in plate heat exchangers using a temperature oscillation technique.

Author(s) : ROETZEL W., DAS S. K., LUO X.

Type of article: Article

Summary

A mathematical model with axial dispersion was used to evaluate heat transfer coefficient and dispersion coefficients characterised by the NTU and Péclet number, respectively. Special reference is made to the deviation from plug flow due to the phase lag effect in a U-type plate heat exchanger. A mathematical model for correcting the thermal penetration effect in plate edgings and thick end plates is presented. The experimental results obtained by using the temperature oscillation technique are compared with those obtained through traditional steady-state experiments. Some suggestions are given for making the method more suitable for plate-type heat exchangers.

Details

  • Original title: Measurement of the heat transfer coefficient in plate heat exchangers using a temperature oscillation technique.
  • Record ID : 1995-0128
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 37
  • Publication date: 1994/03

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