干旱区生态环境知识资源中心(Arid): Supercritical CO2 Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver

Arid

DOI	10.1155/2020/5945718
	Supercritical CO2 Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver
	Wu, Pan 1; Gao, Chuntian 1; Huang, Yanping 2; Zhang, Dan 3; Shan, Jianqiang 1,4
通讯作者	Wu, Pan ; Shan, Jianqiang
来源期刊	SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS
ISSN	1687-6075
EISSN	1687-6083
出版年	2020
卷号	2020
英文摘要	Coupling supercritical carbon dioxide (S-CO2) Brayton cycle with Gen-IV reactor concepts could bring advantages of high compactness and efficiency. This study aims to design proper simple and recompression S-CO2 Brayton cycles working as the indirect cooling system for a mediate-temperature lead fast reactor and quantify the Brayton cycle performance with different heat rejection temperatures (from 32 degrees C to 55 degrees C) to investigate its potential use in different scenarios, like arid desert areas or areas with abundant water supply. High-efficiency S-CO2 Brayton cycle could offset the power conversion efficiency decrease caused by low core outlet temperature (which is 480 degrees C in this study) and high compressor inlet temperature (which varies from 32 degrees C to 55 degrees C in this study). A thermodynamic analysis solver is developed to provide the analysis tool. The solver includes turbomachinery models for compressor and turbine and heat exchanger models for recuperator and precooler. The optimal design of simple Brayton cycle and recompression Brayton cycle for the lead fast reactor under water-cooled and dry-cooled conditions are carried out with consideration of recuperator temperature difference constraints and cycle efficiency. Optimal cycle efficiencies of 40.48% and 35.9% can be achieved for the recompression Brayton cycle and simple Brayton cycle under water-cooled condition. Optimal cycle efficiencies of 34.36% and 32.6% can be achieved for the recompression Brayton cycle and simple Brayton cycle under dry-cooled condition (compressor inlet temperature equals to 55 degrees C). Increasing the dry cooling flow rate will be helpful to decrease the compressor inlet temperature. Every 5 degrees C decrease in the compressor inlet temperature will bring 1.2% cycle efficiency increase for the recompression Brayton cycle and 0.7% cycle efficiency increase for the simple Brayton cycle. Helpful conclusions and advises are proposed for designing the Brayton cycle for mediate-temperature nuclear applications in this paper.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000514166400002
WOS关键词	CONVERSION SYSTEM ; POWER CONVERSION ; OPTIMIZATION ; NITROGEN
WOS类目	Nuclear Science & Technology
WOS研究方向	Nuclear Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315482
作者单位	1.Xi An Jiao Tong Univ, Sch Nucl Sci & Technol, 28 Xianning West Rd, Xian, Shaanxi, Peoples R China; 2.Nucl Power Inst China, CNNC Key Lab Nucl Reactor Thermal Hydraul Technol, Chengdu 610041, Peoples R China; 3.Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610041, Peoples R China; 4.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Pan,Gao, Chuntian,Huang, Yanping,et al. Supercritical CO2 Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver[J],2020,2020.
APA	Wu, Pan,Gao, Chuntian,Huang, Yanping,Zhang, Dan,&Shan, Jianqiang.(2020).Supercritical CO2 Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver.SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS,2020.
MLA	Wu, Pan,et al."Supercritical CO2 Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver".SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS 2020(2020).