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Experimental research and theoretical analysis of flow instability in supercritical carbon dioxide natural circulation loop

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  • Liu, Guangxu
  • Huang, Yanping
  • Wang, Junfeng
  • Lv, Fa
  • Liu, Shenghui

Abstract

In the last decade, supercritical carbon dioxide power cycle has attracted worldwide attention. The characteristics of flow instability are critical for the design and safe operation of supercritical carbon dioxide power cycle. In the present paper, theoretical and experimental study was carried out to investigate the characteristics of flow instabilities in supercritical carbon dioxide natural circulation loop. A new explanation of the mechanism of flow oscillation in supercritical carbon dioxide natural circulation has been put forward. It found that the pressure fluctuation, which resulted from the variation of heat transfer mode, might be amplified under the condition of appropriate non-dimensional pressure drop in supercritical fluids natural circulation loop. Effects of typical thermal parameters on flow instabilities of supercritical carbon dioxide natural circulation were discussed in detail. Results showed that, for supercritical fluids natural circulation system, an increase in the system pressure and the local resistance coefficient in the cold section, and a decrease in the local resistance coefficient in the hot section could enhance the system stability.

Suggested Citation

  • Liu, Guangxu & Huang, Yanping & Wang, Junfeng & Lv, Fa & Liu, Shenghui, 2017. "Experimental research and theoretical analysis of flow instability in supercritical carbon dioxide natural circulation loop," Applied Energy, Elsevier, vol. 205(C), pages 813-821.
    • Handle: RePEc:eee:appene:v:205:y:2017:i:c:p:813-821
    DOI: 10.1016/j.apenergy.2017.08.132
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    References listed on IDEAS

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    1. Huang, Dan & Wu, Zan & Sunden, Bengt & Li, Wei, 2016. "A brief review on convection heat transfer of fluids at supercritical pressures in tubes and the recent progress," Applied Energy, Elsevier, vol. 162(C), pages 494-505.
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    3. Santini, Lorenzo & Accornero, Carlo & Cioncolini, Andrea, 2016. "On the adoption of carbon dioxide thermodynamic cycles for nuclear power conversion: A case study applied to Mochovce 3 Nuclear Power Plant," Applied Energy, Elsevier, vol. 181(C), pages 446-463.
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    Cited by:

    1. Il Hong Min & Seong-Gil Kang & Cheol Huh, 2018. "Instability Analysis of Supercritical CO 2 during Transportation and Injection in Carbon Capture and Storage Systems," Energies, MDPI, vol. 11(8), pages 1-19, August.
    2. Liu, Guangxu & Huang, Yanping & Wang, Junfeng, 2019. "A new theoretical model of steady-state characteristics of supercritical carbon dioxide natural circulation," Energy, Elsevier, vol. 189(C).
    3. Luo, Qiao & Zhou, Yuan & Huang, Yanping & Huang, Jiajian & Hu, Wei & Yuan, Yuan & Tang, Longchang, 2023. "Multi-region oscillation characteristics and hazard of supercritical carbon dioxide in parallel channels natural circulation system," Energy, Elsevier, vol. 267(C).

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