Design and analysis of passive residual heat removal system for a new megawatt and compact nuclear power plant

被引：0
|
作者：
Yuan L. [1 ]
Wu H. [1 ]
Gou J. [1 ]
Shan J. [1 ]
机构：
[1] School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an
来源：
He Jishu/Nuclear Techniques | 2024年 / 47卷 / 01期
关键词：
Heat pipe reactor; High temperature heat pipe; Numerical simulation; Passive residual heat removal system; Unmanned underwater vehicle;
D O I：
10.11889/j.0253-3219.2024.hjs.47.010602
中图分类号：
学科分类号：
摘要：
[Background] A heat pipe reactor is ideal for underwater unmanned vehicles (UUV) because it is simple, is compact, and has high inherent safety. [Purpose] A passive residual heat removal system that uses natural circulation to cool the adiabatic section of heat pipes was designed based on the characteristics of a new type of megawatt compact nuclear power plant with a heat pipe reactor. [Methods] Firstly, based on the characteristics of 3.5 megawatt compact nuclear power plant for UUV, natural circulation of water was utilized to cool the adiabatic section of heat pipes. Then, the computational fluid dynamics software STAR-CCM+ was used to simulate and analyze the heat removal capacity of the passive residual heat removal system with different geometric parameters, made it conservatively meeting the demand of maximum residual heat removal power. [Results & Conclusions] The results show that a baffle around the adiabatic section of heat pipe bundle is beneficial to reduce the maximum temperature of the fluid. The widths of the inlet and outlet of the baffle have almost no effect on the heat removal capacity, while extending the lower part of the baffle is unfavorable to natural circulation. When the axial length of the emergency cooling chamber is 160 mm, it can conservatively meet the maximum residual heat power of 0.14 MW. The maximum fluid temperature is 288 ℃, which is lower than the boiling point under working pressure, and normal operation is possible in ambient temperatures ranging from 5 ℃ to 25 ℃. © 2024 Science Press. All rights reserved.
引用
收藏
相关论文
共 19 条
  • [1] WANG Jianbin, WANG Zhimin, A survey of unmanned underwater vehicles[J], Information and Electronic Engineering, 5, 6, pp. 476-480, (2007)
  • [2] Bowen M., Enabling nuclear innovation: Leading on SMRs, (2017)
  • [3] The world nuclear supply chain: Outlook 2035, (2016)
  • [4] Wang C, Song J, Chen J, Et al., Numerical study of heat transfer unit on improved thermal-radiator of TOPAZ- Ⅱ, Atomic Energy Science and Technology, 50, 1, (2016)
  • [5] Ye C, Zheng M G, Wang M L, Et al., The design and simulation of a new spent fuel pool passive cooling system[J], Annals of Nuclear Energy, 58, pp. 124-131, (2013)
  • [6] Wang C L, Guo Z P, Zhang D L, Et al., Transient behavior of the sodium-potassium alloy heat pipe in passive residual heat removal system of molten salt reactor[J], Progress in Nuclear Energy, 68, pp. 142-152, (2013)
  • [7] Scarlat R O, Laufer M R, Blandford E D, Et al., Design and licensing strategies for the fluoride-salt-cooled, high-temperature reactor (FHR) technology[J], Progress in Nuclear Energy, 77, pp. 406-420, (2014)
  • [8] GUO Simao, WANG Guanbo, TANG Bin, Et al., Research on megawatt high efficiency and compact new marine nuclear power plant[J], China Basic Science, 23, 3, pp. 42-50, (2021)
  • [9] WANG Zhenlan, GOU Junli, XU Shihao, Et al., Heat pipe failure accident analysis of a new type of megawatt heat pipe reactor, Nuclear Techniques, 45, 11, (2022)
  • [10] Huang J L, Wang C L, Guo K L, Et al., Heat transfer analysis of heat pipe cooled device with thermoelectric generator for nuclear power application, Nuclear Engineering and Design, 390, (2022)
12