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Date of Publication:2015-01-01

Journal:西安交通大学学报

Affiliation of Author(s):能源与动力学院

Issue:3

Page Number:50-55

ISSN No.:0253-987X

Abstract:The void fraction of high-pressure and high-temperature two-phase flow was measured using differential pressure substitute method under the conditions that the pressures are 11.3, 14.2 and 21.5 MPa, the mass velocity ranges from 250 to 1 200 kg/(m2·s), and the heat flux is from 50 to 300 kW/m2. The comparison between experimental data and results of several classical models was conducted. The experimental data agreed with the Zivi model and the model of China's national standards for hydrodynamic calculation of power station boiler. The relative error between Zivi model and the experimental data is less than 15% and even less than 10% in high quality region. It can be concluded that the method of differential pressure substitute is suitable for the parameter measurement of high-pressure two-phase flow with high temperature in the vertical ribbed tube. ©, 2015, Xi'an Jiaotong University. All right reserved.

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