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HEAT TRANSFER CHARACTERISTICS IN SCREEN-WICK HEAT PIPES.

Author(s) : IMURA H.

Type of article: Article

Summary

HEAT TRANSFER COEFFICIENTS AND MAXIMUM HEAT TRANSFER RATES DUE TO CAPILLARY LIMITATION WERE INVESTIGATED IN HORIZONTAL HEAT PIPES WITH STAINLESS-STEEL SCREEN-WICKS, USING WATER AS A WORKING FLUID. THE HEAT TRANSFER COEFFICIENTS IN A CONDENSER CAN BE ESTIMATED BY THE EQUATION OF HEAT TRANSFER ACROSS THE LIQUID-SATURATED WICK. THE LIQUID-VAPOUR INTERFACE IN AN EVAPORATOR SEEMS TO TERMINATE BETWEEN THE FIRST AND SECOND LAYERS FROM THE HEATED WALL. FOR PREDICTION OF THE MAXIMUM HEAT TRANSFER RATE, IT IS IMPORTANT THAT THE CAPILLARY RADIUS, PERMEABILITY AND POROSITY ARE EVALUATED ACCURATELY. AN EQUATION FOR POROSITY WAS PROPOSED. THE MAXIMUM HEAT TRANSFER RATES WERE PREDICTED.

Details

  • Original title: HEAT TRANSFER CHARACTERISTICS IN SCREEN-WICK HEAT PIPES.
  • Record ID : 1988-1806
  • Languages: English
  • Source: JSME int. J., Ser. II - vol. 31 - n. 1
  • Publication date: 1988/02
  • Document available for consultation in the library of the IIR headquarters only.

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