新型熔盐储热材料的充放热性能研究

doi:10.12028/j.issn.2095-4239.2018.0103

储能科学与技术 ›› 2018, Vol. 7 ›› Issue (S1): 67-71.doi: 10.12028/j.issn.2095-4239.2018.0103

新型熔盐储热材料的充放热性能研究

仇秋玲, 张艳梅, 顾清之, 顾晓鸥

上海电气集团股份有限公司中央研究院, 上海 200070

收稿日期:2018-06-27 修回日期:2018-07-12 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 仇秋玲(1990-),女,研发工程师,主要从事熔盐储热材料和储热系统研究,E-mail:qiuql@shanghai-electric.com。
作者简介:仇秋玲(1990-),女,研发工程师,主要从事熔盐储热材料和储热系统研究,E-mail:qiuql@shanghai-electric.com。

Research on charge and discharge performance of a new molten salt heat storage material

QIU Qiuling, ZHANG Yanmei, GU Qingzhi, GU Xiao'ou

The Central Research Institute of Shanghai Electric Group Co. Ltd., Shanghai 200070, China

Received:2018-06-27 Revised:2018-07-12 Online:2018-12-05 Published:2018-12-05

摘要/Abstract

摘要： 针对高效率太阳能热发电传热储热的需求，本工作对新型熔盐（LiNO₃：NaNO₃：KNO₃物质的量比例为2：3：5）进行了充放热传热性能研究。通过Fluent模拟结果表明最后熔化的区域是位于罐体底部的边角位置，为了在工程应用中防止此区域出现熔化死角，应增加熔化装置。通过充放热实验验证了模拟结果，实验研究结果表明罐体内的熔盐在加热过程中，是自上而下逐渐熔化的，且熔盐始终存在温度分层，而熔盐冷却凝固的过程并没有分层现象。

关键词: 熔盐, 储热系统, 传热性能, 充放热

Abstract: To meet the demand of solar thermal power generation system working at high efficiency, this paper studies the charge and discharge performance of a new mixed molten salt (NaNO₃:KNO₃:LiNO₃=2:3:5). The Fluent simulation results indicate that the final melted zone is located at the corner of the bottom of the tank. In order to prevent melted dead spots in this area during engineering applications, a melting device should be added. The simulation results were verified by charge and discharge experiments. The experimental results show that the molten salt in the tank gradually melts from top to bottom during the heating process, and the molten salt always has temperature stratification. But the process of cooling solidification has no stratification.

Key words: molten salt, thermal storage system, heat transfer performance, charge and discharge

中图分类号:

TK514

仇秋玲, 张艳梅, 顾清之, 顾晓鸥. 新型熔盐储热材料的充放热性能研究[J]. 储能科学与技术, 2018, 7(S1): 67-71.

QIU Qiuling, ZHANG Yanmei, GU Qingzhi, GU Xiao'ou. Research on charge and discharge performance of a new molten salt heat storage material[J]. Energy Storage Science and Technology, 2018, 7(S1): 67-71.

参考文献

[1] RAJESH K, BHUVANESH A, KANNAN S, THANGARA C. Least cost generation expansion planning with solar power plant using differential evolution algorithm[J]. Renewable Energy, 2016(85):677-686.
[2] SHARMA C, SHARMA A K, Mullick S C, et al. A study of the effect of design parameters on the performance of linear solar concentrator based thermal power plantsin India[J]. Renewable Energy, 2016, 87(1):666-675.
[3] 李石栋, 张仁元, 李风, 等. 储热材料在聚光太阳能热发电中的研究进展[J]. 材料导报, 2010(21):51-55. LI S D, ZHANG R Y, LI F, et al. Research progress of thermal storage materials in concentrated solar thermal power generation[J]. Materials Review, 2010(21):51-55.
[4] 常春, 肖澜, 王红梅. 储热材料在太阳能热发电领域中的应用与展望[J]. 新材料产业, 2012(7):12-19. CHANG C, XIAO L, WANG H M, et al. Application and prospect of thermal storage materials in solar thermal power generation[J]. New Materials Industry, 2012(7):12-19.
[5] KELLY B D. Lesson learned, project history, and operating experience of the solar two project[R]. Sandia National Laboratories Report, 2000.
[6] ALEXIS B, NEXANT Z. Solar power tower design basis document[R]. Sandia Natioanal Laboratories, 1994.
[7] JAMES E P, MARK E R.Results of molten salt panel and component experiments for solar central receiver:Cold filling, freeze/thaw, thermal cycling and shock, and instrumentation tests[R]. Sandia National Laboratories, 1995:34-38.
[8] REILLY H E, KOLB G J. An evaluation of molten-salt power towers including results of the solar two projects:Sandia national laboratories report[R]. Sandia National Laboratories Report, 2001.
[9] LITWIN R Z. Receiver system:Lessons learned from solar two[R]. Sandia National Laboratories Report, 2002.
[10] 王鹏, 罗尘丁, 巨星. 光热电站熔盐传热储热技术应用[J]. 电力勘测设计, 2017(2):67-71. WANG P, LUO C D, JU X. Application of heat transfer and heat storage technology of molten salt in photothermal power plant[J]. Electric Power Survey and Design, 2017(2):67-71.
[11] 杜宝强. 硝酸熔盐储能材料的制备及热物性研究[D]. 西宁:中国科学院青海盐湖研究所, 2017. DU B Q. Preparation and thermal properties of nitric acid molten salt energy storage materials[D]. Xi'ning:Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, 2017.
[12] 邹立清. 四元混合硝酸盐及氯盐的优选与腐蚀性研究[D]. 广东:广东工业大学, 2013. ZOU L Q. Optimization and corrosion of quaternary mixed nitrate and chloride salt[D]. Guangdong:Guangdong University of Technology, 2013.
[13] KRUIZENGA A, GILL D. Corrosion of iron stainless steels in molten nitrate salt[J]. Energy Procedia, 2014, 49:878-887.
[14] MCCONOHY G, KRUIZENGA A. Molten nitrate salts at 600℃ and 680℃:Thermophysical property changes and corrosion of high-temperature nickel alloys[J]. Solar Energy, 2014, 103(103):242-252.
[15] 蒋忠兵, 李笃信, 李昆. 金属粉末注射成形充模流动过程模拟的数学模型探讨[J]. 硬质合金, 2009(1):15-19. JIANG Z B, LI D X, LI K. Discussion on mathematical model of simulation of filling flow process in metal powder injection molding[J]. Cemented Carbide, 2009(1):15-19.
[16] 周心权, 吴兵, 杜红兵. 矿井通风基本概念的理论基础分析[J]. 中国矿业大学学报, 2003(2):133-137. ZHOU X Q, WU B, DU H B. Theoretical basis analysis of basic concepts of mine ventilation[J]. Journal of China University of Mining & Technology, 2003(2):133-137.

新型熔盐储热材料的充放热性能研究

Research on charge and discharge performance of a new molten salt heat storage material

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