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FLOW AND HEAT TRANSFER CHARACTERISTICS IN A CLOSED-TYPE TWO-PHASE LOOP THERMOSIPHON.

[In Japanese. / En japonais.]

Author(s) : IMURA H., SAITO Y., FUJIMOTO H.

Type of article: Article

Summary

AN INVESTIGATION OF FLOW AND HEAT TRANSFER CHARACTERISTICS WAS PERFORMEDEXPERIMENTALLY AND THEORETICALLY USING WATER, ETHANOL AND R113. HEAT TRANSFER COEFFICIENTS IN AN EVAPORATOR AND A CONDENSER, AND CIRCULATION FLOW RATES WERE MEASURED EXPERIMENTALLY. THE EFFECTS OF LIQUID FILL CHARGE, ROTATION ANGLE, PRESSURE IN THE LOOP AND HEAT FLUX ON THE HEAT TRANSFER COEFFICIENTS WERE EXAMINED. THE HEAT TRANSFER COEFFICIENTS WERE CORRELATED BY THE EXPRESSIONS FOR POOL BOILING AND FILM CONDENSATION. THE HEAT TRANSFER COEFFICIENTS IN THE EVAPORATOR WERE CORRELATED BY THE STEPHAN-ABDELSALAM EQUATIONS WITHIN ABOUT 40% ERROR. THE CIRCULATION FLOW RATE WAS PREDICTED THEORETICALLY BY CALCULATING PRESSURE, TEMPERATURE, QUALITY AND VOID FRACTION ALONG THE LOOP.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-1512
  • Languages: Japanese
  • Source: Trans. JAR - vol. 6 - n. 2
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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