Study on Off-design Operating Characteristics of Cold-end System for SCO2 Cycle Matching Fluoride-salt-cooled High-temperature Small Reactor

被引：0
|
作者：
Zhao Q. [1 ]
Zhao K. [1 ]
Chong D. [1 ]
Liu X. [2 ]
Zhang D. [1 ]
Zhuo W. [2 ]
机构：
[1] State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an
[2] Nuclear Power Institute of China, Chengdu
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2023年 / 44卷 / 06期
关键词：
Cold side off-design operation; Constant pressure ratio operation mode; Fixed speed operation mode; Fluoride-salt-cooled high-temperature small reactor; SCO[!sub]2[!/sub] Brayton cycle;
D O I：
10.13832/j.jnpe.2023.06.0242
中图分类号：
学科分类号：
摘要：
The small power generation system of supercritical carbon dioxide (SCO2) Brayton cycle coupled with fluoride-salt-cooled high-temperature small reactor is considered to have a good development prospect in the field of small nuclear power/nuclear power generation because of its high efficiency, compactness and high inherent safety. In this paper, the optimization design and off-design operation characteristics of cold-side for supercritical carbon dioxide Brayton cycle are studied. Based on the Fluoride-salt-cooled high-temperature small reactor characteristics and environment conditions, various SCO2 cycle configurations are compared, and it is found that the main compressor interstage cooling and reheat can improve thermal efficiency, but increase of limited, and extra heat exchangers are added. Then, the off-design operation characteristics of SCO2 cycle cold side system is investigated. The operation mode with constant pressure ratio not only has high cycle efficiency, but also has a wide adaptability range to the temperature change of the environment. Therefore, the constant pressure ratio operation mode is recommended for SCO2 cycle when the ambient temperature changes. © 2023 Atomic Energy Press. All rights reserved.
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页码：242 / 248
页数：6
相关论文
共 20 条
  • [1] 1, pp. 244-245, (2007)
  • [2] 38, 20, pp. 35-49, (2020)
  • [3] LATURKAR K, LATURKAR K., Advances in very small modular nuclear reactors, Chemical Engineering Progress, 118, 4, pp. 44-51, (2022)
  • [4] GREENE S, GEHIN J, HOLCOMB D, Et al., Preconceptual design of a fluoride-salt-cooled small modular advanced high temperature reactor (SmAHTR):ORNL/TM-2010/199, (2011)
  • [5] MACDONALD R., Investigation and design of a secure, transportable fluoride-salt-cooled high-temperature reactor (TFHR) for isolated locations, (2014)
  • [6] DOSTAL V., A supercritical carbon dioxide cycle for next generation nuclear reactors, (2004)
  • [7] BRUN K, FRIEDMAN P, DENNIS R., Fundamentals and applications of supercritical carbon dioxide (sCO2) based power cycles, pp. 32-35, (2017)
  • [8] 38, 24, pp. 7276-7286, (2018)
  • [9] MOISSEYTSEV A, SIENICKI J J., Investigation of alternative layouts for the supercritical carbon dioxide Brayton cycle for a sodium-cooled fast reactor, Nuclear Engineering and Design, 239, 7, pp. 1362-1371, (2009)
  • [10] MOISSEYTSEV A, SIENICKI J J., Development of a plant dynamics computer code for analysis of a supercritical carbon dioxide brayton cycle energy converter coupled to a natural circulation lead-cooled fast reactor:ANL-06/27, (2007)
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