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清华大学学报(自然科学版)  2015, Vol. 55 Issue (9): 1010-1016,1022    
  核能与新能源工程 本期目录 | 过刊浏览 | 高级检索 |
HTR-10GT充装量调节特性及其机理
李骁, 杨小勇, 张佑杰
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
HTR-10GT inventory control characteristics and mechanism
LI Xiao, YANG Xiaoyong, ZHANG Youjie
Key Laboratory of Advanced Reactor Engineering and Safety of the Ministry of Education, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
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摘要 针对HTR-10GT低回热度设计带来的充装量调节规律的特殊性进行了准稳态特性与机理研究。该文通过基于假设的简化推导得到支配调节特性的主要规律与机理, 同时对系统整体进行建模与数值仿真, 通过对比分析对结论进行验证与补充。研究结果表明: 调节过程中相对氦气质量流量降低速率慢于相对负载降低速率, 二者近似满足抛物线关系; 调节过程中回热度的升高有助于提高循环效率, 然而温比的降低、部件偏离设计工况以及Reynolds数效应将导致循环效率的损失; 另外Reynolds数效应还会对系统稳定性产生部分负面影响。研究结果可为高温气冷堆(HTR)的循环设计与运行提供参考。
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李骁
杨小勇
张佑杰
关键词 高温气冷堆(HTR)闭式Brayton循环充装量调节Reynolds数效应    
Abstract:The HTR-10GT inventory control characteristics were analyzed to design a system with low recuperated effectiveness. The system was modeled using a simplified model based on reasonable hypotheses and numerical simulations of the entire system model. The results illustrate that the helium mass flow rate decreases as the load decreases but at a slower rate with both following approximately quadratic relations. The regenerator effectiveness is improved which improves the cycle efficiency; however, the efficiency is reduced by temperature ratio decreases, several components deviating from their design operating points and Reynolds number effects. The Reynolds number effects also negatively impact the compressor stability. This study provides reference information for high temperature gas-cooled reactor (HTR) cycle design and operation.
Key wordshigh temperature gas-cooled reactor (HTR)    closed Brayton cycle    inventory control    Reynolds number effects
收稿日期: 2015-06-09      出版日期: 2015-11-09
ZTFLH:  TL424  
  TK479.12  
通讯作者: 张佑杰, 研究员, E-mail: zhangyj@mail.tsinghua.edu.cn     E-mail: zhangyj@mail.tsinghua.edu.cn
引用本文:   
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.
LI Xiao, YANG Xiaoyong, ZHANG Youjie. HTR-10GT inventory control characteristics and mechanism. Journal of Tsinghua University(Science and Technology), 2015, 55(9): 1010-1016,1022.
链接本文:  
http://jst.tsinghuajournals.com/CN/  或          http://jst.tsinghuajournals.com/CN/Y2015/V55/I9/1010
  图1 HTR-10GT系统结构图[4]
  图2 压气机性能特征曲线及β 线示意图[6]
  图3 相对氦气质量流量与相对电功率的关系
  图4 堆芯加热功率和堆芯出口温度与相对电功率的关系
  图5 系统效率与相对电功率的关系
  图6 相对电功率和流体机械压比的关系
  图7 相对电功率和回热度以及流体机械效率的关系
  图8 相对质量流量和压气机转矩之间的关系
  图9 相对电功率和压气机入口温度的关系
  图10 压气机从100%到30%发电功率下的入口叶弦Reynolds数
  图11 低压压气机100%和30%发电功率下的喘振线与工作点
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