Please wait a minute...
 首页  期刊介绍 期刊订阅 联系我们 横山亮次奖 百年刊庆
 
最新录用  |  预出版  |  当期目录  |  过刊浏览  |  阅读排行  |  下载排行  |  引用排行  |  横山亮次奖  |  百年刊庆
清华大学学报(自然科学版)  2017, Vol. 57 Issue (5): 537-543,549    DOI: 10.16511/j.cnki.qhdxxb.2017.22.034
  核能与新能源工程 本期目录 | 过刊浏览 | 高级检索 |
空间反应堆Brayton循环的热力学特性
李智, 杨小勇, 王捷, 张作义
清华大学 核能与新能源技术研究院, 先进核能技术协同创新中心, 先进反应堆工程与安全教育部重点实验室, 北京 100084
Thermodynamic analysis of a Brayton cycle system for a space power reactor
LI Zhi, YANG Xiaoyong, WANG Jie, ZHANG Zuoyi
Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
全文: PDF(2013 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 地面Brayton循环系统具备高效、紧凑的特点,经过优化后,可适用于空间反应堆。该文利用Fortran语言对空间Brayton循环进行数学建模,以循环工质为基础对系统进行改进,对氦氙混合工质下闭式Brayton循环进行热力学分析,讨论混合工质成分变化对Brayton循环的综合影响。研究结果表明:加入氙气降低了Brayton循环热力学性能,循环效率和比功均有降低;但氙气的加入有效降低压气机膨胀功,改善循环气动性能。氦气与氙气在热力性能与气动性能中表现互补,纯氦工质中加入适量氙气可使Brayton循环系统减少压气机、换热器数量,从而具备空间应用的潜力。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
李智
杨小勇
王捷
张作义
关键词 空间反应堆Brayton循环氦氙混合气体热力学分析    
Abstract:The land-use closed Brayton cycle system has high energy conversion efficiencies in a compact configuration. The Brayton cycle can be used in space nuclear plants with some modifications. This paper uses a mathematical model developed using Fortran computer language for a space Brayton cycle system to optimize the working fluid for power conversion units in a space power reactor to improve the design of space power reactors. The results show that xenon reduces the cycle's efficiency and specific power as the xenon mole fraction increases. However, a proper amount of xenon will reduce the enthalpy changes in the turbomachine, which is good for the system's aerodynamics. Helium and xenon have complementary advantages for the system's thermodynamic and aerodynamic performance. By mixing helium working fluid with appropriate amount of xenon, the Brayton cycle system gives better space reactor designs by decreasing the number of compressors and heat exchangers.
Key wordsspace power reactor    Brayton cycle    mixture of helium and xenon    thermodynamic analysis
收稿日期: 2016-09-06      出版日期: 2017-05-15
ZTFLH:  TL411+.7  
通讯作者: 王捷,研究员,E-mail:wjinet@mail.tsinghua.edu.cn     E-mail: wjinet@mail.tsinghua.edu.cn
引用本文:   
李智, 杨小勇, 王捷, 张作义. 空间反应堆Brayton循环的热力学特性[J]. 清华大学学报(自然科学版), 2017, 57(5): 537-543,549.
LI Zhi, YANG Xiaoyong, WANG Jie, ZHANG Zuoyi. Thermodynamic analysis of a Brayton cycle system for a space power reactor. Journal of Tsinghua University(Science and Technology), 2017, 57(5): 537-543,549.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.22.034  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I5/537
  图1 空间Brayton循环示意图
  图2 空间Brayton循环T-S
  表1 地面Brayton循环常用工质物性对比[10]
  图3 绝热系数随氦气摩尔分数的变化
  图4 相对压损系数随氦气摩尔分数的变化
  图5 回热度随氦气摩尔分数的变化与工质特征点
  表2 工质特征点的特性
  图6 压气机相对焓升随氦气摩尔分数的变化
  图7 工质绝热系数对循环效率的影响
  图8 工质绝热系数对比功的影响
  图9 相对压损系数对效率的影响
  图10 相对压损系数对系统比功的影响
  图11 回热度对效率的影响
  图12 回热度对比功的影响
  图13 工质成分变化对循环效率的影响
  图14 工质成分变化对比功的影响
  图15 3个工质特征点的T-S 图(效率最大)
[1] 王捷. 高温气冷堆氦气透平循环热工特性的初步研究[J]. 高技术通讯, 2002, 12(9): 91-95.WANG Jie. Preliminary study on thermal features for high temperature gas-cooled reactor gas turbine cycle [J]. High Technology Letters, 2002, 12(9): 91-95. (in Chinese)
[2] XU Yuanhui, ZUO Kaifen. Overview of the 10 MW high temperature gas cooled reactor-test module project [J]. Nuclear Engineering and Design, 2002, 218 (1-3): 13-23.
[3] Kiryushin A I, Kodochigov N G. Project of the GT-MHR high-temperature helium reactor with gas turbine [J]. Nuclear Engineering and Design, 1997, 173(1-3): 119-129.
[4] 任啟森, 杨小勇. 高温气冷堆氦气透平循环工质的热物性 [J]. 汽轮机技术 2006, 48(2): 93-94.REN Qisen, YANG Xiaoyong. Thermophysical property of working fluid of high temperature gas-cooled reactor helium gas turbine cycle [J]. Turbine Technology, 2006, 48(2): 93-94. (in Chinese)
[5] 龙艳丽. 高负荷氦气压气机气动设计及性能研究[D]. 哈尔滨: 哈尔滨工程大学, 2012. LONG Yanli. Aerodynamic Design and Performance Research on the High-Loaded Helium Compressor[D]. Harbin: Harbin Engineering University, 2012. (in Chinese)
[6] Cohen H, Rogers G F C, Saravanamuttoo H I H. Gas Turbine Theory[M]. 3rd ed. New York: Longman Scientific & Technical, 1987.
[7] El-Genk M S, Tournier J M. Noble gas, binary mixtures for commercial gas-cooled reactor power plants[J].Nuclear Engineering and Design, 2008, 238(6): 1353-1372.
[8] Tournier J M, El-Genk M S. Properties of noble gases and binary mixtures for closed Brayton cycle applications[J].Energy Conversion and Management, 2008, 49(3): 469-492.
[9] Haire M A, Vargo D D. Review of helium and xenon pure component and mixture transport properties and recommendation of estimating approach for project Prometheus[C]//Space Technology and Applications International Forum. Albuquerque, NM, USA, 2007: 557-570.
[10] 朱善明. 工程热力学[M]. 北京: 清华大学出版社, 1995. ZHU Shanming. Engineering Thermodynamics[M]. Beijing: Tsinghua University Press, 1995. (in Chinese)
[11] 蔡章生. 核动力反应堆中子动力学[M]. 北京: 国防工业出版社, 2005. CAI Zhangsheng. Study on Neutron Kinetics of Nuclear Reactor[M]. Beijing: National Defence Industry Press, 2005. (in Chinese)
[12] 顾义华. 高温气冷堆气体透平循环及透平压气机基本特性研究[D]. 北京: 清华大学, 2003. GU Yihua. Fundamental Study on HTGR Gas Turbine Cycle and Associated Turbocompressor[D]. Beijing: Tsinghua University, 2003. (in Chinese)
[13] 段承杰. 二氧化碳透平循环研究及其在先进核能系统中的运用[D]. 北京: 清华大学, 2011. DUAN Chengjie. Study on Characteristics of CO<sub>2</sub> Turbine Cycle and Its Application in Advanced Nuclear System[D]. Beijing: Tsinghua University, 2011. (in Chinese)
[14] Tournier J M, Mohamed S E G. Best estimates of binary gas mixtures properties for closed Brayton cyclespace applications[C]//4th International Energy Conversion Engineering Conference and Exhibit. San Diego, CA: IECEC, 2006: 1-14.
[15] Mohamed S E G, Tournier J M. Noble-gas binary mixtures for closed brayton cycle space reactor power systems[J].Journal of Propulsion and Power, 2007, 23(4): 863-873.
[1] 杨谢, 石磊. 空间核反应堆电源闭式Brayton循环热力学分析[J]. 清华大学学报(自然科学版), 2018, 58(9): 821-826.
[2] 曲新鹤, 杨小勇, 王捷. 商用高温气冷堆氦气透平循环发电热力学参数分析和优化[J]. 清华大学学报(自然科学版), 2017, 57(10): 1114-1120.
[3] 李骁, 杨小勇, 张佑杰. HTR-10GT充装量调节特性及其机理[J]. 清华大学学报(自然科学版), 2015, 55(9): 1010-1016,1022.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 《清华大学学报(自然科学版)》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn