Development on Sound Velocity Measurement Technique from Outer Surface of Pipe Aim to Estimate Hydrogen Concentration in Gas inside Pipe

Yuji Matsui

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-3 Decommissioning Technology of Nuclear Facilities

[3C01-02] Dismantling and Decontamination Technology

Fri. Mar 22, 2019 9:30 AM - 10:05 AM Room C (Common Education Bildg. 2 1F No.11)

Chair:Masashi Tezuka(JAEA)

9:30 AM - 9:45 AM

[3C01] Development on Sound Velocity Measurement Technique from Outer Surface of Pipe Aim to Estimate Hydrogen Concentration in Gas inside Pipe

*Yuji Matsui¹, Katsuhiko hirano², Ryosuke kobayashi² (1. Hitachi, R&D group, Nuclear System Research Department, 2. Hitachi GE Nuclear Energy)

Keywords:Measurement of sound velocity, Ultrasonic testing

The author has been studying the measurement technique for hydrogen concentration by ultrasonic testing method from outer side of the structures. This report expresses the experimental results on sound velocity shift by changing density of helium gas instead of hydrogen gas.