干旱区生态环境知识资源中心(Arid): Corrosion and mechanical assessment in LiNO3 molten salt as thermal energy storage material in CSP plants

Arid

DOI	10.18086/swc.2019.21.04
	Corrosion and mechanical assessment in LiNO3 molten salt as thermal energy storage material in CSP plants
	Mallco, Abdiel; Fernandez, Angel G.; Preussner, Johannes; Portillo, Carlos
通讯作者	Mallco, A (corresponding author), Univ Antofagasta, Ctr Desarrollo Energet Antofagasta CDEA, Antofagasta, Chile.
会议名称	International-Solar-Energy-Society (ISES) Solar World Conference (SWC) / International-Energy-Agency-Solar-Heating-and-Cooling-Programme (IEA SHC) International Conference on Solar Heating and Cooling for Buildings and Industry
会议日期	NOV 04-07, 2019
会议地点	Chilean Solar Energy Res Ctr, Santiago, CHILE
英文摘要	The development of solar thermal energy in Chile, leads to the realization of applied research in such a way that new technologies and applications suitable to the conditions of the Atacama Desert can be proposed. In view of the search for new fluids feasible to be applied in CSP technology as thermal energy storage using molten salts, this research proposes the use of the mixture composed by 30wt. % LiNO3 - 13wt. % NaNO3 - 57wt. % KNO3. Corrosion has been evaluated on different stainless steels (AISI430, AISI304, VM12-SHC) and a Ni base alloy (HR-224). In order to monitorize corrosion, electrochemical impedance spectroscopy and linear polarization technique have been applied in order to obtain the corrosion rate and the corrosion mechanism as well. The corrosion rates obtained for AISI304, AISI430, VM12 and HR224 was 1.82, 2.69, 3.53 and 0.63 (mm/year), respectively at 550 degrees C and 100 h of immersion. Finally, the effect of molten salts on the mechanical properties of materials used in solar thermal plants is studied, as well as the effect of Flow Accelerated corrosion (FAC), determining the most suitable methods for these evaluations.
英文关键词	Molten Salts Corrosion Mechanical Properties Electrochemical impedance spectroscopy FAC (Flow Accelerated Corrosion)
来源出版物	PROCEEDINGS OF THE ISES SOLAR WORLD CONFERENCE 2019 AND THE IEA SHC SOLAR HEATING AND COOLING CONFERENCE FOR BUILDINGS AND INDUSTRY 2019
出版年	2019
页码	1128-1137
ISBN	978-3-9820408-1-3
出版者	INTL SOLAR ENERGY SOC
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000604438100114
WOS类目	Energy & Fuels
WOS研究方向	Energy & Fuels
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370249
作者单位	[Mallco, Abdiel; Portillo, Carlos] Univ Antofagasta, Ctr Desarrollo Energet Antofagasta CDEA, Antofagasta, Chile; [Fernandez, Angel G.] Univ Lleida, INSPIRES Res Ctr, GREiA Res Grp, Lleida, Spain; [Preussner, Johannes] Fraunhofer Inst Mech Mat IWM, Freiburg, Germany
推荐引用方式 GB/T 7714	Mallco, Abdiel,Fernandez, Angel G.,Preussner, Johannes,et al. Corrosion and mechanical assessment in LiNO3 molten salt as thermal energy storage material in CSP plants[C]:INTL SOLAR ENERGY SOC,2019:1128-1137.