Temperature Field Distribution Characteristics in Rod Bundle Channel

被引：0
作者：
Mi Z. [1 ]
Tan S. [2 ]
Zou S. [3 ]
Qiu Z. [1 ]
Zhu D. [1 ]
Zhang D. [1 ]
Deng J. [1 ]
Cai R. [1 ]
Wu L. [1 ]
机构：
[1] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu
[2] Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin
[3] Beijing Institute of Automatic Control Equipment, Beijing
来源：
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2020年 / 54卷 / 09期
关键词：
Laser induced fluorescence technique; Rod bundle channel; Spacer grid; Temperature distribution;
D O I：
10.7538/yzk.2019.youxian.0599
中图分类号：
学科分类号：
摘要：
Visualized experimental techniques are increasingly used in the measurement of nuclear reactor system parameters. Based on the characteristics of laser induced fluorescence (LIF) technique, the difficulties and solutions of the LIF technique were introduced in this paper. And the temperature distributions downstream of spacer grid in rod bundle channel under the steady flow and pulsating flow were analyzed. The results show that the application range and measurement accuracy of LIF technique can be improved by studying the optical properties and dye characteristics. At the same time, post-processing technology can be used to obtain more accurate temperature field distribution. The full-field temperature distributions downstream of spacer grid in rod bundle channel under steady flow and fluctuating flow conditions were obtained. Spacer grid can significantly enhance flow mixing and improve heat exchange capacity. Temperature distribution is also affected by fluctuations in velocity. In summary, the LIF technique can achieve the full-field measurement of the temperature distribution in the rod bundle channel. According to the temperature distribution characteristics, the performance of the spacer grid can be evaluated. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.
引用
收藏
页码：1644 / 1651
页数：7
相关论文
共 14 条
  • [1] TAN S C, SU G H, GAO P Z., Experimental and theoretical study on single-phase natural circulation flow and heat transfer under rolling motion condition, Applied Thermal Engineering, 29, 14-15, pp. 3160-3168, (2009)
  • [2] LIU Yusheng, GAO Puzhen, TAN Sichao, Et al., Experimental study on phase difference of pulsating laminar flow in rectangular channel, Atomic Energy Science and Technology, 47, 4, pp. 564-569, (2013)
  • [3] LIU Yusheng, TAN Sichao, GAO Puzhen, Et al., Experimental study on resistance characteristics of pulsating laminar flow in rectangular channel, Atomic Energy Science and Technology, 47, 2, pp. 223-228, (2013)
  • [4] ZHUANG Nailiang, TAN Sichao, YUAN Hongsheng, The friction characteristics of low-frequency transitional pulsatile flow in narrow channel, Experimental Thermal and Fluid Science, 76, pp. 352-364, (2016)
  • [5] CHAO Yanmeng, CFD evaluation of turbulence model on heat transfer in 5×5 rod bundles, Atomic Energy Science and Technology, 48, 10, pp. 1782-1789, (2014)
  • [6] LEE C M, CHOI Y D., Comparison of thermo-hydraulic performances of large scale vortex flow (LSVF) and small scale vortex flow (SSVF) mixing vanes in 17×17 nuclear rod bundle[J], Nuclear Engineering and Design, 237, 24, pp. 2322-2331, (2007)
  • [7] WANG Haisong, LENG Jie, Numerical investigation of flow and heat transfer characteristics in 5×5 rod bundles with difference spacer grids, Journal of Thermal Science and Technology, 16, 3, pp. 187-192, (2017)
  • [8] XIONG Wanyu, CHEN Bingde, XIAO Zejun, Visualization test for flow field of bundles with grid spacers, Nuclear Power Engineering, 25, 3, pp. 218-221, (2004)
  • [9] OWEN F K., Simultaneous laser measurements of instantaneous velocity and concentration in turbulent mixing flows, Proceedings of the AGARD Conference of Non-intrusive Instrumentation in Fluid Flow Research (AGARD-CP-19), (1976)
  • [10] KARASSO P S, MUNGAL M G., PLIF measurements in aqueous flows using the Nd: YAG laser, Experiments in Fluids, 23, 5, pp. 382-387, (1997)
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