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Improvements to hydrogen depleting and monitoring system for Chinese Pressurized Reactor 1000

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Abstract

We evaluate the hydrogen depletion ability of the hydrogen depletion system for Chinese Pressurized Reactor 1000 (CPR1000), which has been applied in nuclear power plants with pressurized water reactors; moreover, we introduce a new device that can continuously monitor hydrogen concentration inside the CPR1000 containment building. Experimental studies show that a moveable hydrogen autocatalytic recombiner alone can sufficiently deplete hydrogen under the condition of a design-basis accident, and 33 passive autocatalytic recombiners placed in the areas of high hydrogen concentration satisfy the hydrogen depletion requirements under the condition of a beyond-design-basis accident. Meanwhile, the hydrogen concentration monitoring system is designed and installed based on the approach of detecting the temperature increase caused by the catalytic reaction of hydrogen. In conclusion, the hydrogen depletion capacity of the CPR1000 meets the requirements, and the system’s safety can be enhanced by the improved hydrogen concentration monitoring system.

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Authors and Affiliations

  1. Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Zhang Yang, Nian-Yong Zhou & Yan-Long Jiang

  2. Fujian Ningde Nuclear Power Company, Ningde, 355200, China

    Zhang Yang

  3. College of Urban Construction, Nanjing Tech University, Nanjing, 211800, China

    Yu Wang

Authors
  1. Zhang Yang
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  2. Yu Wang
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  3. Nian-Yong Zhou
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  4. Yan-Long Jiang
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Corresponding author

Correspondence to Yu Wang.

Additional information

This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institution.

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Yang, Z., Wang, Y., Zhou, NY. et al. Improvements to hydrogen depleting and monitoring system for Chinese Pressurized Reactor 1000. NUCL SCI TECH 28, 131 (2017). https://doi.org/10.1007/s41365-017-0287-7

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  • DOI: https://doi.org/10.1007/s41365-017-0287-7

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