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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

EXPERIMENTAL INVESTIGATION OF CRITICAL HEAT FLUX IN FORCED CONVECTION BOILING OF FREON IN A TUBE AT HIGH SUBCRITICAL PRESSURE

Get access (open in a dialog) DOI: 10.1615/IHTC7.1150
pages 321-326

Resumo

Experimental data were obtained of the critical heat flux in Freon 22 at high subcritical pressure (reduced pressure of 0.68 to 0.96) flowing upward in a vertical, uniformly heated round tube. The critical heat flux or critical quality was found to be classified into three characteristic regimes. A dimensionless correlating equation was obtained for each regime, which agrees with the experimental data within the limit of ±10 per cent in respect of the critical heat flux and within the limit of ±0.05 in respect of the critical quality. These correlating equations were proved also to predict successfully the critical heat flux in Freon 115 at high subcritical pressure.