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化工学报  2014 

基于群体平衡原理的蒸汽发生器汽液两相流动与沸腾数值模拟

DOI: 10.3969/j.issn.0438-1157.2014.02.018, PP. 495-500

Keywords: MUSIG,群体平衡,热相变模型,汽液两相流

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Abstract:

基于相似原理建立了耦合四叶梅花形支撑板的蒸汽发生器“单元管”三维物理模型。采用考虑汽泡聚合与破碎效应的MUSIG(multiple-size-group)模型描述二次侧汽泡尺度分布和水力特性,热相变模型计算二次侧汽液两相沸腾相变过程,对大亚湾蒸汽发生器汽液两相流动与沸腾过程进行数值研究。模拟结果表明,支撑板位置处汽、液相流速均急剧升高,产生射流,在离开支撑板孔口时迅速形成回流。两相邻支撑板间出现明显的汽泡由小到大的周期性变化过程,冷、热端沿程汽泡最大直径缓慢减小。二次侧平均传热系数与Rohsenow经验关联式的计算结果吻合较好。

References

[1]  Ferng Y M, Ma Y P. Thermal-hydraulic simulation of localized flow characteristics in a steam generator[J]. Nucl. Technol., 2000, 136: 186-194
[2]  Ferng Y M, Chang H J. CFD investigating the impacts of changing operating conditions on the thermal-hydraulic characteristics in a steam generator[J]. Appl. Therm. Eng., 2008, 28: 414-422
[3]  Ferng Y M. Investigating the distribution characteristics of boiling flow and released nuclide in the steam generator secondary side using CFD methodology[J]. Ann. Nucl. Energy, 2007, 34: 724-731
[4]  Yang Lixin(杨立新), Nie Huagang(聂华刚), Song Xiaoming(宋小明), Niu Wenhua(牛文华). Numerical investigation on gas-liquid flow and heat transfer characteristics in a liquid-reactor[J]. Nuclear Power Engineering (核动力工程), 2009, 30(3): 85-90
[5]  Yang Yuanlong(杨元龙), Sun Baozhi(孙宝芝), Yang Longbin(杨龙滨), Zhang Yu(张羽). Numerical simulation on vapor-liquid two-phase of the secondary circuit in steam generator[J]. Atomic Energy Science and Technology (原子能科学技术), 2012, 46(1): 52-57
[6]  Sun B Z, Yang Y L. Numerically investigating the influence of tube support plates on thermal-hydraulic characteristics in a steam generator[J]. Appl. Therm. Eng., 2013, 51: 611-622
[7]  Mori S,Fukano T. Influence of a flow obstacle on the occurrence of burnout in boiling two-phase upward flow within a vertical annular channel[J]. Nucl. Eng. Des., 2003, 225: 49-63
[8]  Fukano T, Mori S, Akamatsu S, Baba A. Relation between temperature fluctuation of a heating surface and generation of dry patch caused by a cylindrical spacer in a vertical boiling two-phase upward flow in a narrow annular channel[J]. Nucl. Eng. Des., 2002, 217: 81-90
[9]  Tieszen S, Merte H, Arpaci V S. Crevice boiling in steam generators[J]. J. Heat Transfer, 1987, 109: 761-767
[10]  Belliard M, Grandotto M. Computation of two-phase flow in steam generator using domain decomposition and local zoom methods[J]. Nucl. Eng. Des., 2002, 213: 223-239
[11]  Shao Xuefeng(邵雪峰), Li Xiangdong(李祥东), Wang Rongshun(汪荣顺). Analysis of the MUSIG model of flow boiling of liquid nitrogen in vertical annular pipe[J]. Cryogenics and Superconductivity (低温与超导),2009, 37(5):1-6
[12]  Wen Jian(文键), Wang Simin(王斯民), Li Yanzhong(厉彦忠). Subcooled boiling numerical simulation of cryogenic fluid based on MUSIG model[J].Chemical Engineering(China)(化学工程), 2010, 38(11):22-27
[13]  Kumar S, Ramkrishna D. On the solution of population balance equations by discretization[J]. Chem. Eng. Sci., 1996, 51: 1311-1332
[14]  Ramkrishna D, Mahoney A W. Population balance modelling. Promise for the future[J]. Chem. Eng. Sci., 2002, 57: 595-606
[15]  Luo H, Svendsen H. Theoretical model for drop and bubble break-up in turbulent dispersions[J]. AIChE J., 1996, 42: 1225-1233
[16]  Prince M J, Blanch H W. Bubble coalescence and break-up in air-sparged bubble column[J]. AIChE J., 1990, 36: 1485-1499
[17]  Zhou Gang(周刚), Peng Wei(彭威), Zhang Dafa(张大发). Method for analysis of water level control in nuclear steam generator [J]. Atomic Energy Science and Technology(原子能科学技术), 2004, 38: 20-23
[18]  Hughmark G A. Mass and heat transfer from a rigid sphere[J]. AIChE J., 1967, 13: 1219-1224
[19]  Green S J, Hetsroni G. PWR steam generators[J]. Int. J. Multiphase Flow, 1995, 21: 1-97
[20]  Ding Xunshen(丁训慎). Natural circulation steam generator operating principles and operating parameters[J]. Nuclear Power Plant (核电站), 2003(3): 15-21
[21]  Dai Yulong(戴玉龙), Li Zhi'an(李志安), Wang Cuihua(王翠华), Chen Yubo(陈玉博). Numerical analysis of flow field in shell side of cinquefoil orifice-baffle support type heat exchanger[J]. Journal of Shenyang Institute of Chemical Technology (沈阳化工学院学报), 2007, 21(1): 25-28
[22]  Lucas D, Frank T, Lifante C, Zwart P, Burns A. Extension of the inhomogeneous MUSIG model for bubble condensation[J]. Nucl. Eng. Des., 2011, 241: 4359-4367
[23]  Li Yanjun, Yang Yuanlong, Sun Baozhi. Numerical investigation of thermal-hydraulic characteristics in a steam generator using a coupled primary and secondary side heat transfer model[J]. Annals of Nuclear Energy, 2013, 55: 258-264
[24]  Yang Shiming(杨世铭), Tao Wenquan(陶文铨). Heat Transfer (传热学)[M]. Beijing: Higher Education Press, 1998: 301-347

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