Experimental study of vapor local characteristics in upward low pressure boiling tube

MISCELLANEOUS

Experimental study of vapor local characteristics in upward low pressure boiling tube

SUN Qi，

ZHAO Hua，

XI Zhao，

YANG Rui-Chang

Nuclear Science and Techniques

Vol.14, No.3

pp.212-216

Published in print 01 Aug 2003

CLC：TL331

22300

Radial distribution of vapor local parameters, including local void fraction, interfacial velocity, bubble size, bubble frequency and interfacial area concentration, are investigated through the measurement in an upward boiling tube using dual-sensor optical probe. In addition, a new local parameter— "local bubble number concentration" is developed on the basis of bubble frequency. The analysis shows that this parameter can reflect bubble number density in space, and has clear physical meaning.

Two-phase flowOptical probeLocal parameter

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