主催: The Japan Society of Mechanical Engineers
会議名: 第30回 原子力工学国際会議（ICONE30）
開催日: 2023/05/21 - 2023/05/26
To study the depressurization process and parameters change near the breaking point during the rapid blowdown in the pipeline system, an experimental device is designed and built to do the transient experiment and measurement based on the loss of coolant accident in the water-cooled reactor. The apparatus of the experiment include a heating container tank to provide water with certain initiated pressure and temperature, an experimental section, an experimental control system, various kinds of transducers and a data collection system, as well as some auxiliary equipment. At the same time, the layout and size of the test section have taken the results of numerical calculation into account. In order to better simulate the transient process, a quick-opening solenoid valve is used to accomplish the pipe rupture. Besides that, a series of highprecision piezoelectric sensors with a maximum frequency response of 10kHz is used to meet the requirement of transient pressure measurement. In addition, a movable measuring rod is designed to acquire the spatial distribution and time response curve of back pressure when the discharged water is released into the outer area. The experimental scheme, including the specific procedures, with some calculations are presented in this study. The solution strategy for crucial points and challenging issues is also discussed. This separated experiment provides a solution for parameter measurement both in the pipeline system and the outside space during the strong transient flow process, and also provides a foundation for subsequent experiments under high parameter working conditions in the future.
