[3I09-13] Reactor Design, Nuclear Power Plant Construction and Seismic Resistance 2

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[3I11] Development of High-Temperature and High-Pressure Gas-Liquid Two-Phase Flow Measurement Technology

*Naoki Inoue¹, Yoshiteru Komuro¹, Hiroaki Nakanishi¹, Seiho Utsumi¹, Yoshiyuki Kondo¹, Junichi Takeuchi¹, Satoru Kamohara¹, Takashi Ueno¹ (1. MHI)

Keywords:

Two-phase flow,high pressure,high temperature,fine bubble,void fraction,electro type probe

MHI has designed an Integrated Small Reactor with a natural circulation system. To accurately evaluate the void fraction distribution in the reactor, it is necessary to measure it in high-temperature and high-pressure two-phase flow, where the generation of fine bubbles is expected. In this study, we tried to develop an electrode probe sensor to detect these bubbles in the flow. The durability test confirmed its applicability in such environments. Bubble detection test with fine bubbles was carried out in air-water system with surfactant at room temperature.