Development of an innovative detection system for pebble bed kinematic studies

作     者：Ying Zhao Shi-Xiang Qu Xing-Wang Zhu Shi-Wei Shao Zhao-Zhong He Kun Chen 

作者机构：Shanghai Institute of Applied Physics Chinese Academy of Sciences Jiading Campus Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049China 

基　　金：Supported by the ‘‘Strategic Priority Research Program’’ of the Chinese Academy of Sciences(Grant No.XDA02050100) 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2016年第27卷第2期

页      码：115-121页

摘      要：Pebble bed reactors enable the circulation of pebble fuel elements when the reactors are in *** unique design helps to optimize the burnup and power distribution, reduces the excessive reactivity of the reactor,and provides a mean to identify and segregate damaged fuel elements during operation. The movement of the pebbles in the core, or the kinematics of the pebble bed,significantly affect the above features and is not fully understood. We designed and built a detection system that can measure 3-axis acceleration, 3-axis angular velocity,3-axis rotation angles, and vibration and temperature of multiple pebbles anywhere in the pebble bed. This system uses pebble-shaped detectors that can flow with other pebbles and does not disturb the pebble movement. We used new technologies to enable instant response, precise measurement, and simultaneous collection of data from a large number of detectors. Our tests show that the detection system has a negligible zero drift and the accuracy is better than the designed value. The residence time of the pebbles in a moving pebble bed was also measured using the system.

主 题 词：检测系统 卵石床 运动学 创新 精确测量 燃料元件 反应堆 设计值 

学科分类：08[工学] 082701[082701] 0827[工学-食品科学与工程类] 

核心收录：

D　O　I：10.1007/s41365-016-0048-z

馆 藏 号：203130503...