2×2棒束通道内流动沸腾空泡份额分布实验研究  

Experimental Investigation on Void Fraction Distribution of Boiling Flow in 2×2 Rod Bundle Channel

作　　者：刘浩[1,2] 张卢腾 周文雄[1,2] 朱隆祥 万灵峰 张宏[1,2] 马在勇 孙皖 潘良明[1,2] 邓杰文[1,2] Liu Hao;Zhang Luteng;Zhou Wenxiong;Zhu Longxiang;Wan Lingfeng;Zhang Hong;Ma Zaiyong;Sun Wan;Pan Liangming;Deng Jiewen(Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Ministry of Education,Chongqing University,Chongqing,400044,China;Department of Nuclear Engineering and Technology,Chongqing University,Chongqing,400044,China)

机构地区：[1]重庆大学低品位能源利用技术及系统教育部重点实验室,重庆400044 [2]重庆大学核工程与核技术系,重庆400044

出　　处：《核动力工程》2023年第6期104-110,共7页Nuclear Power Engineering

基　　金：国家自然科学基金(U21B2059,12205031)。

摘　　要：电导探针方法是一种获取两相界面参数的重要手段。通过单探头电导探针测量并分析了2×2棒束通道内流动沸腾空泡份额的径向分布,结果表明,在当前实验工况下,从汽泡信号的波动特性来看,通道中心处的汽泡信号主体波动幅度较小,棒间隙处的汽泡信号主体波动幅度较大;空泡份额径向分布均呈现出中心峰的分布特性,中心峰呈现出下凹的现象,这是由于中心处的汽泡相对于壁面处的汽泡吸收的热量更小而发生冷凝。The conductivity probe method is an important methodology to obtain two-phase interfacial parameters.The radial distribution of the boiling flow void fraction in the 2×2 rod bundle channel was measured and analyzed by a one-sensor conductivity probe.The results show that under the current experimental conditions,from the fluctuation characteristics of the bubble signal,the fluctuation amplitude of the bubble signal main body at the center of the channel is small,and the fluctuation amplitude of the bubble signal main body at the rod gap is large.The radial distribution of void fraction shows the distribution characteristics of the core peak,and the core peak shows a concave phenomenon,which is due to the bubble at the center receives less heat than that at the wall.

关 键 词：电导探针 棒束通道 流动沸腾 空泡份额 

分 类 号：TL334[核科学技术—核技术及应用]