Structural Design and Finite Element Analysis of a Normally-Closed Finned Freeze Valve

被引：0
|
作者：
Jiang X. [1 ,2 ]
Wang N. [1 ]
Su B. [1 ,2 ]
Chen Y. [1 ,2 ]
Kong X. [1 ,2 ]
Lu H. [1 ]
Fu Y. [1 ]
机构：
[1] Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai
[2] University of Chinese Academy of Sciences, Beijing
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2019年 / 40卷 / 06期
关键词：
Fin; Finite element; Freeze valve; Molten salt reactor;
D O I：
10.13832/j.jnpe.2019.06.0149
中图分类号：
学科分类号：
摘要：
The freeze valve TMSR-FV1 functions as a normally closed shut-off valve in the secondary loop of the Thorium-based Molten Salt Reactor (TMSR). TMSR-FV2 is an improved version of TMSR-FV1, which heat transfer is enhanced by adding fins to the outer surface of freeze valve while keeping its size intact. In this paper, the Finite Element Method was used to make structural design and thermal analysis of TMSR-FV2. The effects of fin height, fin thickness and fin pitch on the cooling of molten salt in TMSR-FV2 under natural cooling conditions were studied. A finned freeze valve structure was proposed and compared with the experimental salt plug effect of TMSR-FV1 under natural cooling and different cooling flow conditions. The calculation results show that the proposed TMSR-FV2 effectively reduces the central molten salt temperature of the flat section to enhanc the salt plug of the freeze valve and realizes the passive closing function of the freeze valve within the scope of the research. © 2019, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.
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页码：149 / 154
页数：5
相关论文
共 8 条
  • [1] Robertson R.C., MSRE design and operations report part I: description of reactor design: ORNL-TM-728, (1965)
  • [2] Li Q., Tang Z., Fu Y., Et al., Preli-minary study of the use of freeze-valves for a passive shutdown system in molten salt reactors, Proceedings of the Twelfth NRC/ASME Symposium on Valves, Pumps, and Inservice Testing, pp. 325-341, (2014)
  • [3] Parth S., Design of a freeze plug for the molten salt fast reactor(MSFR), (2016)
  • [4] Van-Frederique T., A new design for the safety plug in a molten salt fast reactor, (2016)
  • [5] Andre M., Design of a freeze plug grate, (2017)
  • [6] Deurvorst F.R., Design of cooling fins on the freeze plug, (2017)
  • [7] Benes O., Konings R.J.M., Thermodynamic properties and phase diagrams of fluoride salts for nuclear applications, Journal of Fluorine Chemistry, 130, 1, pp. 22-29, (2009)
  • [8] Workbench User's Guide for Revision 14.5, (2012)
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