Analysis of Helium Cryogenic Cycle for the Cooling of Cold Neutron Source

余锋; 厉彦忠; 王斯民; 蒲亮

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Analysis of Helium Cryogenic Cycle for the Cooling of Cold Neutron Source

更新时间：2025-12-08

- Analysis of Helium Cryogenic Cycle for the Cooling of Cold Neutron Source
- Vol. 41, Issue 3, Pages: 316-320+325(2007)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB66
- Online First：10 March 2007，
  
  Published：2007
- 稿件说明：
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余锋, 厉彦忠, 王斯民, et al. Analysis of Helium Cryogenic Cycle for the Cooling of Cold Neutron Source[J]. 2007, 41(3): 316-320+325.
DOI：

余锋, 厉彦忠, 王斯民, et al. Analysis of Helium Cryogenic Cycle for the Cooling of Cold Neutron Source[J]. 2007, 41(3): 316-320+325. DOI：

摘要

为向冷中子源装置氢系统提供17.5 K的低温冷源

设计了逆布雷顿循环的液氮预冷模式和4种膨胀机预冷模式

并对这5种循环模式进行热力分析和NFE71分析

获得了各循环模式下的主要热力参数并分析比较了各自的热力性质.结果表明:带液氮预冷和前置式并联膨胀机预冷2种模式的热力性能最好

NFE71效率最高; 对于膨胀机预冷循环

并联模式优于串联模式

前置式优于后置式.循环系统NFE71损失部位主要在压缩机、膨胀机和换热器

减小这3部分NFE71损失的途径有以下方面:改善循环

减小系统氦的质量流量; 提高压缩机的等温效率、膨胀机的等熵效率; 改善换热器的内部温度、温差、压力分布及物流分配.本研究为中国先进研究堆冷中子源氦制冷系统的设计提供了数值基础.

Abstract

A reverse Brayton cycle with advance refrigeration of liquid nitrogen and four cycles with advance expander refrigeration were designed to provide 17.5 K cold source for H

system of cold neutron source(CNS)project. Based on thermodynamic and exergetic computation for the different cycle modes

thermodynamic parameters

exergy loss

exergy efficiency and cycle capability were obtained and analysed respectively. The results show that the capabilities and exergy efficiencies of the cycles with liquid nitrogen and with prepositive parallel connected expander are greater than those of others; for the cycle modes with advance expander refrigeration

parallel connection mode is superior to series connection mode

and prepositive mode is superior to postpositive

mode. The main exergy loss of cycle occurs in the compressor

the expander and the exchanger

so there are three ways to improve exergy efficiency of cycle:(1)reducing the mass rate of helium by improving cycle;(2)improving isoenthopic efficiency of the expander and isothermal efficiency of the compressor;(3)improving distribution of temperature

pressure

temperature difference and refrigerant in the exchanger. These results provide numerical basis of the design of helium cryogenic cooling system of CNS for China advanced research reactor(CARR).

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references

Farnoux B, Maziere M. New cold neutron source of the ORRHEE reactor[C]∥Proceedings of the 5th Asian Symposium on Research Reactors. Taejon, Korea: KAERI, 1996:599-609.

Kumai T, Suzuki M, Kakefuda K. The cold neutron facility of the JRR3M. Technical Report, JAERI-M92-028[R]. Japan: Japan Atomic Energy Research Institute, 1992:559-566.

孙来燕, 李洪勋,蔡朝恩,等. 大型空间环境模拟设备的气氦制冷系统[J]. 低温工程,1999(3):249-252.

Sun Laiyan, Li Hongxun, Cai Chaoen, et al. Refrigeration system of helium in super simulation device of space environment[J]. Cryogenics, 1999(3):249-252.

Kawai T. Safe utilization of CNS and research status in cold neutron physics at KUR [C]∥ Proceedings of the 5th Asian Symposium on Research Reactors. Taejon, Korea: KAERI, 1996:627-644.

赵冠春,钱立伦. NFE69分析及其应用[M].北京:高等教育出版社,1995:34-44.

Wang Qiang,Li Yan Zhong, Wang Jin.Analysis of power cycle based on cold energy of liquefied natural gas and low-grade heat source[J].Applied Thermal Engineering,2004, 24(4):539-548.

陈则韶, 程文龙,胡NFDE7,等. 一种利用LNG冷能的空气分离装置新流程[J]. 工程热物理学报,2004,25(6):913-916.

Chen Zeshao, Cheng Wenlong, Hu Peng. A new air separation system by using cold energy of LNG[J]. Journal of Engineering Thermophysics, 2004,25(6):913-916.

焦安军, 厉彦忠, 张瑞,等. 物流分配的不均匀性对紧凑式换热器效能的影响[J].西安交通大学学报,2001,35(3):265-269.

Jiao Anjun, Li Yanzhong, Zhang Rui, et al. Study on the effects of flow nonuniformity on performance of compact heat exchanger [J]. Journal of Xi'an Jiaotong University, 2001,35(3):265-269.

巫江虹, 陈长青, 侯喜胜,等. 板翅式换热器两相分配特性及实验研究[J]. 西安交通大学学报,1995, 29(11):117-126.

Wu Jianghong, Chen Changqing, Hou Xisheng, et al. Analysis of two-phase flow distribution in plate fin heat exchangers and experimental research [J]. Journal of Xi'an Jiaotong University, 1995,29(11):117-126.

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