Analysis of natural circulation flow field inside the air-cooled channel of molten salt-air heat exchanger in the nitrate natural circulation loop

Zhen HOU; Chuangxiong CAI; Yapeng ZHANG; Qun YANG; Zhaozhong HE; Kun CHEN

doi:10.11889/j.0253-3219.2018.hjs.41.100603

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Analysis of natural circulation flow field inside the air-cooled channel of molten salt-air heat exchanger in the nitrate natural circulation loop

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2021-05-19

- Analysis of natural circulation flow field inside the air-cooled channel of molten salt-air heat exchanger in the nitrate natural circulation loop
- NUCLEAR TECHNIQUES Vol. 41, Issue 10, Article number: 100603(2018)
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800
  2.中国科学院大学北京 100049
- 作者简介：
- 基金信息：
  
  the Strategic Priority Research Program of Chinese Academy of Sciences
- DOI：10.11889/j.0253-3219.2018.hjs.41.100603
  CLC： TL364
- Received：26 March 2018，
  
  Revised：11 May 2018，
  
  Published：10 October 2018
- 稿件说明：
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Zhen HOU, Chuangxiong CAI, Yapeng ZHANG, et al. Analysis of natural circulation flow field inside the air-cooled channel of molten salt-air heat exchanger in the nitrate natural circulation loop[J]. Nuclear techniques, 2018, 41(10): 100603
DOI：

Zhen HOU, Chuangxiong CAI, Yapeng ZHANG, et al. Analysis of natural circulation flow field inside the air-cooled channel of molten salt-air heat exchanger in the nitrate natural circulation loop[J]. Nuclear techniques, 2018, 41(10): 100603 DOI： 10.11889/j.0253-3219.2018.hjs.41.100603.

摘要

硝酸盐自然循环回路（Nitrate Natural Circulation Loop，NNCL）是研究熔盐堆非能动余热排出技术的实验平台，通过熔盐非能动循环和风冷通道内的空气自然对流将热量排至大气。研究熔盐-空气热交换器风冷通道内的流场特性，可以深入了解NNCL自然循环的建立过程及有效性。采用数值模拟方法对NNCL熔盐-空气热交换器的风冷通道内的空气速度场和温度场分布进行研究，分析不同时刻风冷通道内的流场特性，获得了风门不同开启程度条件下，风冷通道内的温度场和速度场分布及变化规律。研究结果表明：NNCL的空气流道在风门开启后，可以很好地形成空气自然循环，并使换热器形成熔盐自然循环，带走热量。本研究弥补了NNCL流场分布实验条件的不足，为NNCL自然循环建立的有效性和稳定性提供了参考依据。

Abstract

Background

The application of passive safety systems can contribute to security and possibly reduce spending target of new nuclear power plant designs. Analysis methods and design must be employed to ensure that the systems perform their intended functions.

Purpose

This study aims to analyze the natural circulation of air inside the air cooling channel of molten salt-air heat exchanger in the nitrate natural circulation loop (NNCL).

Methods

Numerical simulation was employed to study the heat transfer performance by the FLUNT6.3 software. Both the air velocity field and distribution of temperature field were studied to analyze the characteristics of flow fields inside the air-cooled channel of molten salt-air heat exchanger.

Results

The distribution graph of velocity field and temperature field under various operating conditions was made into charts and graphics. The transient distribution variation rules of different sections are obtained. The results are approximately consistent with the record summarized by optical fiber measurement.

Conclusions

The results show that the molten salt-air heat exchanger of air cooling channel can form good natural circulation and take away the heat. It provides a theoretical basis for the operation and transformation of the air-cooled channel.

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Keywords

references

S Lomperski , W D Pointer , C P Tzanos , . Generation Ⅳ nuclear energy system initiative; air-cooled option RCCS studies and NSTF preparation . International Journal of Intelligent Systems , 2011 . 29 ( 11 ): 971 - 993 . http://digital.library.unt.edu/ark:/67531/metadc842873/ .

Forsberg C, Hu L, Peterson P, et al . Fluoride-salt-cooled high-temperature reactor (FHR) for Power and Process Heat (DOE/NEUP——11-3272)[R]. Vienna: International Atomic Energy Agency, 2015.

Z J Yang , J L Gou , J Q Shan , . Analysis of SBLOCA on CPR1000 with a passive system . Nuclear Science and Techniques , 2017 . 28 ( 1 ): 10 DOI: 10.1007/s41365-016-0154-y http://doi.org/10.1007/s41365-016-0154-y .

王凯 , 蔡创雄 , 何兆忠 , . 硝酸盐自然循环回路系统特性分析 . 核技术 , 2015 . 38 ( 4 ): 040602 DOI: 10.11889/j.0253-3219.2015.hjs.38.040602 http://doi.org/10.11889/j.0253-3219.2015.hjs.38.040602 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract398.shtml .

Kai WANG , Chuangxiong CAI , Zhaozhong HE , . Characteristics analysis of nitrate salt natural circulation loop . Nuclear Techniques , 2015 . 38 ( 4 ): 040602 DOI: 10.11889/j.0253-3219.2015.hjs.38.040602 http://doi.org/10.11889/j.0253-3219.2015.hjs.38.040602 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract398.shtml .

C C Yue , L L Chen , K F Lyu , . Flow characteristics of natural circulation in a lead-bismuth eutectic loop . Nuclear Science and Techniques , 2017 . 28 ( 3 ): 39 DOI: 10.1007/s41365-017-0187-x http://doi.org/10.1007/s41365-017-0187-x .

Tzanos C P. CFD analysis for the applicability of the natural convection shutdown heat removal test facility (NSTF) for the simulation of the VHTR RCCS[R]. Office of Scientific & Technical Information Technical Reports, 2007. DOI: 10.2172/925350 http://dx.doi.org/10.2172/925350 .

F P Incropera , D P Dewitt , T L Bergman , . Principles of heat and mass transfer , Wiley & Sons , 2013 .

Sohal M S, Ebner M A, Sabhar P. Engineering database of liquid salt thermophysical[R]. Idaho Falls: Idaho National Laboratory, 2010. DOI: 10.2172/1086824 http://dx.doi.org/10.2172/1086824 . http://digital.library.unt.edu/ark:/67531/metadc840052/

陈杨华 , 肖炜 , 郭文帅 , . 蛇形管蓄能箱蓄热过程的数值模拟 . 南昌大学学报(工科版) , 2013 . 35 ( 2 ): 163 - 167 . DOI: 10.7666/d.Y2402764 http://doi.org/10.7666/d.Y2402764 .

Yanghua CHEN , Wei XIAO , Wenshuai GUO , . Numerical simulation about thermal energy storage process of serpentine tube energy storage . Journal of Nanchang University (Engineering & Technology) , 2013 . 35 ( 2 ): 163 - 167 . DOI: 10.7666/d.Y2402764 http://doi.org/10.7666/d.Y2402764 .

刘敏珊 , 杨帆 , 董其伍 , . 流体横掠管束模拟中壁面函数影响研究 . 热能动力工程 , 2010 . 25 ( 5 ): 497 - 500 . http://d.old.wanfangdata.com.cn/Periodical/rndlgc201005006 .

Minshan LIU , Fan YANG , Qiwu DONG , . Study of the influence of wall surface functions in simulating a fluid laterally sweeping a tube bundle . Journal of Engineering for Thermal Energy & Power , 2010 . 25 ( 5 ): 497 - 500 . http://d.old.wanfangdata.com.cn/Periodical/rndlgc201005006 .

Dakin J P. Distributed optical fiber sensors[C]. Proceedings Volume 1797, Distributed and Multiplexed Fiber Optic Sensors Ⅱ, 1993. DOI: 10.1117/12.141304 http://dx.doi.org/10.1117/12.141304 . http://www.freshpatents.com/-dt20110922ptan20110228255.php

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