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ISSN Online: 2377-424X

International Heat Transfer Conference 4
August 31 - September 5, 1970, Paris-Versailles, France

EFFECT OF PRECISION OF MEASUREMENT ON REPORTED CONDENSATION COEFFICIENTS FOR LIQUID METALS - INCLUDING CONDENSATION DATA ON A HORIZONTAL SURFACE

Get access (open in a dialog) DOI: 10.1615/IHTC4.1260
pages 1-11

Аннотация

An error analysis presented in this investigation indicates that the reported pressure dependence of the condensation coefficient is due to an inherent limitation in the precision of the condensing wall temperature measurement. The magnitude of this limitation in precision is different for the various test systems used. The analysis shows that the primary variable affecting the precision of the wall temperature measurement is the thermal conductivity of the condensing block. Experimental results presented here for potassium condensing on a horizontal, stainless steel plate as well as other published data agree with the prediction of the error analysis. It is concluded from the experimental data and the error analysis that the condensation coefficient is equal to unity at all pressures.