The effect of gas-liquid properties on height of disturbance waves in a vertical annular two-phase flow

S. Mori, Y. Tanaka, H. Yoshida

Research output: Contribution to conferencePaperpeer-review

Abstract

Gas–liquid two-phase flow, such as the flow near nuclear fuel rods in boiling water reactors (BWRs), is encountered in many industries. In such flows, the dryout of the water film occurs at the thin base film between two successive disturbance waves. Therefore, it is important to elucidate the detailed behavior of disturbance waves. In previous studies, many experiments on disturbance wave flow have been conducted under atmospheric conditions. However, the properties of liquids and gases under atmospheric pressure are quite different from those under BWR operating conditions (7 MPa, 285 °C). Therefore, in the present study, HFC134a gas and liquid ethanol, whose properties at a relatively low pressure and temperature (0.7 MPa, 40 °C) are similar to those of steam and water under BWR operating conditions, are used as working fluids. This paper reports the liquid film thickness characteristics in a two-phase HFC134a gas–liquid ethanol flow.

Original languageEnglish
Pages708-714
Number of pages7
Publication statusPublished - Jan 1 2019
Event18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019 - Portland, United States
Duration: Aug 18 2019Aug 23 2019

Conference

Conference18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019
CountryUnited States
CityPortland
Period8/18/198/23/19

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Instrumentation

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