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Journal of Thermal Science

, Volume 28, Issue 2, pp 262–270 | Cite as

Effect of Cooling Water Flow Path on the Flow and Heat Transfer in a 660 MW Power Plant Condenser

  • Dawen Zhong
  • Ji’an MengEmail author
  • Peng Qin
  • Xiaolong Qiu
  • Ping Jiang
  • Zhixin Li
  • Fang Yuan
Article
  • 17 Downloads

Abstract

The effect of the cooling water flow path on the flow and heat transfer in a double tube-pass condenser for a 660 MW power plant unit was numerically investigated based on a porous medium model. The results were used to analyze the streamline, velocity, air mass fraction and heat transfer coefficient distributions. The simulations indicate that the cooling water flow path is important in large condensers. For the original tube arrangement, the heat transfer with the lower-upper cooling water flow path is better than that with the upper-lower cooling water flow path. The reason is that the steam cannot flow into the internal of upper tube bundle and the air fractions are higher in the upper tube bundle with the upper-lower cooling water flow path. An improvement tube arrangement was developed for the upper-lower cooling water flow path which reduced the back pressure by 0.47 kPa compared to the original scheme. Thus, the results show that the tube arrangements should differ for different cooling water flow paths and the condenser heat transfer can be improved for the upper-lower cooling water flow path by modifying the tube arrangement.

Keywords

steam surface condenser porous media cooling water flow path condensation computational fluid dynamics 

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Notes

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (Grant No: 51506061 and 51706068) and Fundamental Research Funds for the Central Universities (Grant No: 2017MS039).

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Copyright information

© Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Dawen Zhong
    • 1
  • Ji’an Meng
    • 2
    Email author
  • Peng Qin
    • 3
  • Xiaolong Qiu
    • 3
  • Ping Jiang
    • 4
  • Zhixin Li
    • 2
  • Fang Yuan
    • 5
  1. 1.Beijing Key Laboratory of Passive Safety Technology for Nuclear EnergyNorth China Electric Power UniversityBeijingChina
  2. 2.Key Laboratory of Thermal Science and Power Engineering of Ministry of Education, School of Aerospace EngineeringTsinghua UniversityBeijingChina
  3. 3.Central Southern China Electric Power Design Institute CO. LTDWuhanChina
  4. 4.Shanxi Zhaozhuang Xinguang Power Generation CO. LTDChangzhiChina
  5. 5.School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhanChina

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