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MIXED DOUBLE-DIFFUSIVE CONVECTION IN GAS-LOADED HEAT PIPES.

Author(s) : PETERSON P. F., TIEN C. L.

Type of article: Article

Summary

THE STUDY EXAMINES MIXED DOUBLE-DIFFUSIVE CONVECTION IN GAS-LOADED HEAT PIPES AND TWO-PHASE THERMOSIPHONS. THE NUMERICAL SIMULATION AND EXPERIMENTS SHOW THAT STEADY, LAMINAR NATURAL CONVECTION DUE TO THE COMBINED EFFECTS OF TEMPERATURE AND CONCENTRATION GRADIENTS CAN GREATLY REDISTRIBUTE THE NONCONDENSABLE GAS WITHIN THE CONDENSER. THIS CHANGE OF THE GAS DISTRIBUTION, HOWEVER, DOES NOT SIGNIFICANTLY ALTER THE OVER-ALL CONDENSATION HEAT TRANSFER. THIS INTERESTING RESULT IMPLIES THAT EVEN WITH NATURAL CONVECTION PRESENT, MUCH SIMPLER INTEGRAL MODELS CAN STILL BE APPLIED WITH CONFIDENCE FOR THE DESIGN OF VARIABLE-CONDUCTANCE HEAT PIPES AND THERMOSIPHONS.

Details

  • Original title: MIXED DOUBLE-DIFFUSIVE CONVECTION IN GAS-LOADED HEAT PIPES.
  • Record ID : 1991-0131
  • Languages: English
  • Source: J. Heat Transf. - vol. 112 - n. 1
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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