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自然循环过冷沸腾净蒸汽产生点的实验研究 被引量：8

EXPERIMENTAL STUDY ON THE POINT OF NET VAPOR GENERATION IN A NATURAL CIRCULATION SYSTEM WITH SUBCOOLED BOILING
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摘要 本文报告了使用R-12作工质进行的自然循环过冷沸腾净蒸汽产生点的实验结果。实验过程中使用可视化方法观察确定过冷沸腾净蒸汽产生点。在相当宽广的工质压力、入口过冷度及加热功率范围内研究了上述参数对过冷沸腾净蒸汽产生点的影响。实验结果证实,对自然循环流动,汽泡所受的浮升力对净蒸汽产生点的汽泡的脱离有重要影响。据此,本文提出了使用同时考虑浮升力作用的修正的Levy模型计算自然循环过冷沸腾净蒸汽产生点的计算方法。 This paper presents the experimental study on the point of net vapor generation in a natural circulation system with subcooled boiling. Freon-12 was used as the working medium. The point of net vapor generation was determined by visual observation. The influence of the system pressure, inlet subcooling of the working medium and the heat input power to the heated section on the point of net vapor generation were investigated in the experiments. It is found from the data reduction that the buoyancy to the bubbles has great influence on the point of net vapor generation. The empirical correlation to calculate the point of net vapor generation for natural circulation with subcooled boiling by using modified Levy model was presented.
作者 杨瑞昌 王彦武 唐虹 梁玥
机构地区 清华大学热能工程系
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2003年第2期247-250,共4页 Journal of Engineering Thermophysics
基金 国家自然科学基金资助项目(No.59995460-1) 空泡物理和自然循环重点实验室2000年基金资助项目
关键词 自然循环 过冷沸腾 净蒸汽产生 实验 过冷度 Levy模型 反应堆 冷却方式 natural circulation subcooled boiling point of net vapor generation experimental study
分类号 TL33 [核科学技术—核技术及应用]
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参考文献6

  • 1[1]J G Collier, J R Thome. Convective Boiling and Condensation. Third Edition. Oxford University Press, 1994
  • 2[2]Z L Miropolskii, et al. Void Fraction of Water-Steam Mixture Flow with or Without Heat Transfer. Teploenergetika, 1971, (5): (in Russian)
  • 3[3]P Saha, N Zuber. Point of Net Vapour Generation and Vapour Void Fraction in Subcooled Boiling. In: Proc. of the 5th International Heat Transfer Conference. Tokyo,1974. Paper B4.7
  • 4[4]S Levy. Forced Convection Subcooled Boiling Prediction of Vapor Volumetric Fraction. Int. J. Heat Mass Transfer, 1967, 10:951-965
  • 5[5]S C Lee, H Dorra, S G Bankoft. A Critical Review of Predictive Models for the Onset of Significant Void in Forced Convection Subcooled Boiling. Presented at ASME Winter Ann. Mtg. Anaheim, CA, 1992
  • 6[6]H O Chang, J C Chapman. Two-Phase Flow Instability for Low-Flow Boiling in Vertical Heated Thin Rectangular Channels. Nuclear Technology, 1996, 113:327-337

同被引文献35

  • 1潘良明,何川,辛明道,吴小航.单面与双面加热时窄缝流道内过冷沸腾气泡行为的比较[J].化工学报,2004,55(9):1519-1522. 被引量：7
  • 2Yoram Zvirin. A Review of Natural Circulation Loops in Pressurized Water Reactors and Others System [J]. Nuclear Engineering and Design, 1981,67 : 203-225.
  • 3Saha P, Zuber N. Point of Net Vapor Generation and Vapor Void Fraction in Subcooled Boiling[C]. Proc. of the 5th International Heat Transfer Conference, Tokyo,1974, Paper B4.7.
  • 4Levy S, Forced Convection Subcooled Boiling- prediction of Vapor Volumetric Fraction[J]. Int, J. Heat Mass Transfer, 1967, 10:951 -965.
  • 5Rogers J T. The Onset of Significant Void in Up-Flow boiling of Water at Low Pressure and Velocities[J]. Int J Heat Mass Transfer, 1987, 30:2247 - 2259.
  • 6Chang H O, Chapman J C. Two-Phase Flow Instability for Low-Flow Boiling in Vertical Heated Thin Rectangular Channels[J], Nuclear Technology, 1996, 113:327-337.
  • 7Sun Q, Yang R C, Zhao H. Predictive Study of the Incipient Point of Net Vapor Generation in Low-Flow Subcooled Boiling[J]. Nuclear Engineering and Design,2003, 225(2-3): 249 - 256.
  • 8Arneodo C A, Gaggaro G, Grigorio P, et al. The Oscillation Onset in a Pressurized Water Natural Circulation Loop. Experimental Investigation. In: Symposium on Two-Phase Flow Dynamics. Eindhoven, 1967. 1: 179-203
  • 9Arneodo C A, Gaggaro G, Grigorio P, et al. The Oscillation Onset in a Pressurized Water Natural Circulation Loop, Criteria for Natural Circulation Instability Onset Prediction. In: Symposium on Two-Phase Flow Dynamics. Eindhoven, 1967. 1:827-839
  • 10Collier J G. Convective Boiling and Condensation. New York: McGrw-Hill, 1981

引证文献8

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工程热物理学报
2003年 第2期

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