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Electrohydrodynamic boiling enhancement in shell-and-tube evaporators and its application in refrigeration plants.

Author(s) : DAMIANIDIS C., KARAYIANNIS T. G., DADAH R. K. al-, JAMES R. W., COLLINS M. W., ALLEN P. H. G.

Summary

The paper is concerned with the electrohydrodynamic enhancement of boiling heat transfer of refrigerants in the shell side of single-and nine-tube shell-and-tube heat exchangers. R114 was the working fluid in both cases. The electrohydrodynamic mechanism is introduced. The resulting effect of electrohydrodynamics on the boiling of dielectric fluids is outlined. Electrohydrodynamic-enhanced boiling heat transfer rates for single tubes are presented. Data from the nine-tube evaporator have been used in a theoretical model predicting the performance of a refrigeration plant. The improvements in the plant's COP and refrigeration capacity were significant.

Details

  • Original title: Electrohydrodynamic boiling enhancement in shell-and-tube evaporators and its application in refrigeration plants.
  • Record ID : 1993-2556
  • Languages: English
  • Source: ASHRAE Transactions 1992. Part 2.
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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