干旱区生态环境知识资源中心(Arid): A walk-away safe, Very-Small, Long-LIfe, Modular (VSLLIM) reactor for portable and stationary power

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DOI	10.1016/j.anucene.2019.01.025
	A walk-away safe, Very-Small, Long-LIfe, Modular (VSLLIM) reactor for portable and stationary power
	El-Genk, Mohamed S.1,2,3,4; Palomino, Luis M.1,2
通讯作者	El-Genk, Mohamed S.
来源期刊	ANNALS OF NUCLEAR ENERGY
ISSN	0306-4549
出版年	2019
卷号	129 页码:181-198
英文摘要	This paper describes a Very-Small, Long-LIfe, and Modular (VSLLIM) reactor design, developed at the University of New Mexico's Institute for Space and Nuclear Power Studies, which offers passive operation and decay heat removal and redundant control. During nominal operation and after shutdown, the VSLLIM reactor is cooled by natural circulation of in-vessel liquid sodium (Na), that is enabled using in-vessel chimney (1-2 m tall) and helically coiled tubes Na-Na heat exchanger, placed at the top of the downcomer. The reactor can generate 1.0-10 MWth, depending on the height of the chimney and the HEX design, at an average fission power density up to 23.47 MWth/m(3). The VSLLIM reactor can potentially operate continuously, without refueling for similar to 92 and 5.9 full power years (FPY), respectively, and slightly below atmospheric pressure, owing to the sodium low vapor pressure. The core is loaded with hexagonal assemblies of fuel rods with UN enriched to 13.76%, and has independent systems for emergency shutdown and nominal control. It also has two independent systems for safe passive removal of decay heat after shutdown, and following an unlikely malfunction of in-vessel HEX. These are liquid metal heat pipes (LMHPs) embedded in the primary vessel wall, and natural circulation of ambient air along the outer surface of the guard vessel wall. The LMHPs are thermally coupled to thermoelectric elements for generating 10 s of kW of auxiliary DC power, independent of on-site and off-site sources, both during nominal reactor operation and after shutdown. The sodium coolant enters the fast-neutron energy spectrum core at 610 K and exits at <= 755 K, depending on the reactor thermal power. At these temperatures, Na is compatible with the HT-9 Ferritic-Martensitic steel cladding, core structure and reactor vessel. The reactor would be fabricated, assembled and sealed at the factory, and transported by rail, truck or barge to a permanent site and installed underground, to protect against an airplane or a missile impact, and mounted on seismic isolation bearings, to resist earthquakes. At the site, the VSLLIM module could use a superheated steam Rankine cycle or a supercritical CO2 Brayton cycle for electricity generation at high thermal efficiency. Alternatively, a VSLLIM power module, with an open air Brayton cycle, could be deployed on a portable platform or a truck, to provide both electricity and/or process heat at remote sites, hospitals, data centers, natural disaster areas, arid or desert regions, and advanced military bases. (C) 2019 Elsevier Ltd. All rights reserved.
英文关键词	Small and very small modular reactors Walk-away safe UN fuel Natural circulation Portable Long-life Distributed grid Passive operation Walk-away safe Auxiliary electric power Thermoelectric conversion
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000466822500016
WOS关键词	URANIUM NITRIDE FUEL ; STEELS
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/2XILL650/214193
作者单位	1.Univ New Mexico, Inst Space & Nucl Power Studies, Albuquerque, NM 87131 USA; 2.Univ New Mexico, Dept Nucl Engn, Albuquerque, NM 87131 USA; 3.Univ New Mexico, Dept Mech Engn, Albuquerque, NM 87131 USA; 4.Univ New Mexico, Chem & Biol Engn Dept, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	El-Genk, Mohamed S.,Palomino, Luis M.. A walk-away safe, Very-Small, Long-LIfe, Modular (VSLLIM) reactor for portable and stationary power[J],2019,129:181-198.
APA	El-Genk, Mohamed S.,&Palomino, Luis M..(2019).A walk-away safe, Very-Small, Long-LIfe, Modular (VSLLIM) reactor for portable and stationary power.ANNALS OF NUCLEAR ENERGY,129,181-198.
MLA	El-Genk, Mohamed S.,et al."A walk-away safe, Very-Small, Long-LIfe, Modular (VSLLIM) reactor for portable and stationary power".ANNALS OF NUCLEAR ENERGY 129(2019):181-198.