太阳能热发电站熔盐储罐首次充盐策略研究

韩伟; 崔凯平; 刘欣; 韩振兴; Francisco Mangas

doi:10.19912/j.0254-0096.tynxb.2019-1392

PDF(2602 KB)

太阳能学报 ›› 2022, Vol. 43 ›› Issue (3) : 282-287. DOI: 10.19912/j.0254-0096.tynxb.2019-1392

太阳能热发电站熔盐储罐首次充盐策略研究

韩伟^1,2, 崔凯平¹, 刘欣¹, 韩振兴³, Francisco Mangas⁴

作者信息 +

RESEARCH ON FIRST SALT FILLING STRATEGY FOR STORAGE TANKS OF CSP PLANT

Han Wei^1,2, Cui Kaiping¹, Liu Xin¹, Han Zhenxing³, Francisco Mangas⁴

Author information +

文章历史 +

摘要

通过计算流体动力学（CFD）模拟计算分析某实际工程设计阶段的充盐策略参数,对储罐内熔盐温度和储罐壁面温度的影响,通过分析模拟结果后确定在项目具体实施阶段采用预热系统及电加热器系统配合的充盐策略。通过将此充盐策略用于实际商业项目第1次充盐过程,效果良好,储罐整体温度较为均匀,同时也发现在第1次充盐过程中储罐基础存在较为明显的散热作用,应当引起足够重视。

Abstract

The heat storage system is one of the core systems of the concentrating solar power（CSP）station, and the failure of the storage tank system is extremely harmful to the CSP station. At present, there are few studies on the temperature influence of the storage tank operation conditions, especially the first salt filling process, and there is no detailed salt filling process strategy to guide operation. CFD simulation has been presented to analyze the parameters of the first filling process. The influence on the molten salt temperature in the storage tank and the temperature difference of the tank wall has been achieved. Based on the simulation results, the preheating and heater system has been decided to use during salt filling together. By using this salt filling strategy to the first salt filling process of practical commercial projects, the temperature difference of the tank wall is well controlled, and the overall temperature of the storage tank is relatively uniform. What should be noticed is that the foundation of the storage tank can significate effect the salt temperature during the first salt charging process.

导出引用

韩伟, 崔凯平, 刘欣, 韩振兴, Francisco Mangas. 太阳能热发电站熔盐储罐首次充盐策略研究[J]. 太阳能学报. 2022, 43(3): 282-287 https://doi.org/10.19912/j.0254-0096.tynxb.2019-1392

Han Wei, Cui Kaiping, Liu Xin, Han Zhenxing, Francisco Mangas. RESEARCH ON FIRST SALT FILLING STRATEGY FOR STORAGE TANKS OF CSP PLANT[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 282-287 https://doi.org/10.19912/j.0254-0096.tynxb.2019-1392

中图分类号： TK514

参考文献

[1] SHAN J H, DING J, LU J F.Numerical investigation of high-temperature molten salt leakage[J]. Energy procedia, 2015, 69: 2072-2080.
[2] 导致新月沙丘光热电站熔盐泄露事故的七个原因分析[R/OL]. http://www.cspplaza.com/article-8519-1.html(2016).
The seven main reasons that may resulting the molten salt tank leakage of Crescent Dunes CSP plants[R/OL]. http://www.cspplaza.com/article-8519-1.html(2016).
[3] 韩伟, 赵晓辉, 张智博, 等. 弃风弃光电量的光热回收系统运行特征研究[J]. 电力建设, 2019, 40(s): 90-97.
HAN W, ZHAO X H, ZHANG Z B, et al.Performance analysis on CSP plant with dumped energy recovery system[J]. Electric power construction, 2019, 40(s): 90-97.
[4] TORRAS S, PEREZ C D, RODRIGUEZ I, et al.Parametric study of two-tank TES systems for CSP plants[J]. Energy procedia, 2015, 69: 1049-1058.
[5] SCHULTE-FISCHEDICK J, TAMME R, HERRMANN U.CFD Analysis of the cool down behaviour of molten salt thermal storage systems[C]//Proceedings of ES2008 Energy Sustainability 2008, Jacksonville, Florida, USA,2008.
[6] 陶文铨. 数值传热学[M]. 西安: 西安交通大学出版社, 2001: 353.
TAO W Q, Numerical heat transfer[M]. Xi’an: Xi’an Jiaotong University Press, 2001: 353.
[7] IRANZO A, SUÁREZ C, GUERRA J. Mixing enhancement in thermal energy storage molten salt tanks[J]. Energy conversion and management, 2018, 168: 320-328.
[8] FRITZ Z, JAVIER G B, MARCELINO S, et al.Transient molten salt two-tank thermal storage modeling for CSP performance simulations[J]. Solar energy, 2013,93: 294-311.