2018 Annual Meeting

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Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2B18-21] Two-phase Flow Experiment

Tue. Mar 27, 2018 4:55 PM - 6:00 PM Room B (C1-311 -C1 Building)

Chair: Tomio Okawa (UEC)

5:10 PM - 5:25 PM

[2B19] Two-phase flow behavior in diffuser section of a supersonic steam injector

*Yuki Kamata1, Masaya Fujishiro1, Akiko Kaneko1, Yutaka Abe1 (1. Univ. of Tsukuba)

Keywords:Steam Injector, Gas-Liquid Two-Phase Flow, Direct Contact Condensation, Nuclear Plant Safety System

In order to clarify the flow structure of the discharge jet in the steam injector (SI), the diffuser section was observed in detail. Visualization by the high-speed camera and pressure measurement were carried out, and the phenomenon of vapor-liquid two-phase flow occurring inside the discharge jet was discussed.