Experimental Research on Effect of Different Parameters on Reverse Flow of U-tube Steam Generator

LIU Hao; MA Zaiyong; JIANG Zhangrui; TANG Yu; ZHANG Luteng; XU Jianjun; SUN Wan; YUAN Dewen; PAN Liangming

doi:10.7538/yzk.2020.youxian.0543

Atomic Energy Science and Technology > 2021 > 55(7): 1309-1315. > DOI: 10.7538/yzk.2020.youxian.0543

LIU Hao, MA Zaiyong, JIANG Zhangrui, TANG Yu, ZHANG Luteng, XU Jianjun, SUN Wan, YUAN Dewen, PAN Liangming. Experimental Research on Effect of Different Parameters on Reverse Flow of U-tube Steam Generator[J]. Atomic Energy Science and Technology, 2021, 55(7): 1309-1315. DOI: 10.7538/yzk.2020.youxian.0543

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Experimental Research on Effect of Different Parameters on Reverse Flow of U-tube Steam Generator

Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China
CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu 610041, China

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Abstract

Under low flow forced circulation conditions, reverse flow may occur in some U-tubes. The effects of primary side inlet temperature, primary side total flow velocity, electric regulating valve resistance coefficient and secondary side mass flow rate on the critical point of the U-tube reverse flow under conditions of low flow forced circulation were studied by experiments. The results show that with the increase of the primary side inlet temperature, the critical flow velocity of the reverse flow increases. With the increase of primary side total flow velocity, the U-tube inlet temperature gradually increases during occurring reverse flow. From the experimental results, the electric regulating valve resistance coefficient has no significant effect on the critical point of reverse flow. With the increase of secondary side mass flow rate, the critical flow velocity of reverse flow slowly decreases.
- steam generator,
- reverse flow,
- forced circulation,
- effect of parameter

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[1]	HYVÄRINEN J. Heat transfer characteristics of horizontal steam generators under natural circulation conditions[J]. Nuclear Engineering and Design, 1996, 166(2): 191-223.
[2]	WALTER H, LINZER W. The influence of the operating pressure on the stability of natural circulation systems[J]. Applied Thermal Engineering, 2006, 26(8-9): 892-897.
[3]	KUKITA Y, NAKAMURA H, TASAKA K, et al. Nonuniform steam generator U-tube flow distribution during natural circulation tests in ROSAⅣ large scale test facility[J]. Nuclear Science and Engineering, 1988, 99(4): 289-298.
[4]	XU Z, JI H, HONG G, et al. Investigation on the role of mass flow rate in UTSG reverse flow under natural circulation condition[J]. Annals of Nuclear Energy, 2019, 132: 763-772.
[5]	JIANG Y Y, SHOJI M. Flow stability in a natural circulation loop: Influences of wall thermal conductivity[J]. Nuclear Engineering and Design, 2003, 222(1): 16-28.
[6]	BIAN B, HONG G, LI N, et al. Numerical study on flow inversion in UTSG under natural circulation[J]. Annals of Nuclear Energy, 2018, 115: 315-322.
[7]	HAO J, CHEN W, HU G, et al. Experimental research on reverse flow critical point among parallel U-tubes in SG[J]. Progress in Nuclear Energy, 2017, 98: 59-70.
[8]	SHEN M, YU L, LIN M, et al. Investigation on reverse flow phenomenon in UTSGs with abnormal secondary side water level under single-phase natural circulation[J]. Progress in Nuclear Energy, 2020, 119: 103180.
[9]	CHU X, CHEN W, HAO J, et al. Experimental and theoretical investigations on effect of U-tube inlet and secondary temperatures on reverse flow inside UTSG[J]. Annals of Nuclear Energy, 2017, 110: 1073-1080.
[10]	储玺，陈文振，郝建立，等. 蒸汽发生器U型管低含气率两相倒流现象研究[J]. 原子能科学技术，2018，52(7)：1276-1281. CHU Xi, CHEN Wenzhen, HAO Jianli, et al. Investigation of twophase reverse flow in U-tube under low mass quality condition[J]. Atomic Energy Science and Technology, 2018, 52(7): 1276-1281(in Chinese).
[11]	叶磊，于雷，郝建立，等. 自然循环工况非对称U型管的倒流特性研究[J]. 原子能科学技术，2020，doi：10.7538/yzk.2020.youxian.0593. YE Lei, YU Lei, HAO Jianli, et al. Study on reverse flow characteristic of asymmetric U-tube under natural circulation condition[J]. Atomic Energy Science and Technology, 2020, doi: 10.7538/yzk.2020.youxian.0593(in Chinese).
[12]	赵鹏程，衣峰，余红星，等. 自然循环条件下蒸汽发生器倒U型管流量分配特性研究[J/OL]. 核动力工程，https:∥kns.cnki.net/kcms/detail/51.1158.TL.20201210.1352.002.html. ZHAO Pengcheng, YI Feng, YU Hongxing, et al. Research on flow distribution characteristics of inverted U-shaped tube of steam generator under natural circulation condition[J/OL]. Nuclear Power Engineering, https:∥kns.cnki.net/kcms/detail/51.1158.TL.20201210.1352.002.html(in Chinese).
[13]	唐瑜，徐建军，谢添舟，等. 自然循环条件下蒸汽发生器U型传热管倒流分布特性的实验研究[J]. 核动力工程，2018，39(4)：43-47. TANG Yu, XU Jianjun, XIE Tianzhou, et al. Experimental study on distribution characteristics of flow reversal in U-tubes of steam generator under natural circulation[J]. Nuclear Power Engineering, 2018, 39(4): 43-47(in Chinese).
[14]	LI M, CHEN W, HAO J, et al. Experimental and numerical investigations on effect of reverse flow on transient from forced circulation to natural circulation[J]. Nuclear Engineering and Technology, 2020, 52(9): 1955-1962.
[15]	LI M, HAO J, CHEN W, et al. Experimental and theoretical investigations on reverse flow characteristics in vertically inverted U-tube steam generator under transient condition[J]. Progress in Nuclear Energy, 2020, 120: 103216.

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