基于熔融盐换热的多孔介质单储罐斜温层储热机制研究

张俊峰; 肖斌; 王黎明; 信敏; 朱佳华

doi:10.19912/j.0254-0096.tynxb.2025-0804

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (9) : 76-87. DOI: 10.19912/j.0254-0096.tynxb.2025-0804

基于熔融盐换热的多孔介质单储罐斜温层储热机制研究

张俊峰¹, 肖斌¹, 王黎明¹, 信敏¹, 朱佳华²

作者信息 +

RESEARCH ON HEAT STORAGE MECHANISM OF POROUS MEDIUM SINGLE TANK THERMOCLINE BASED ON MOLTEN SALT HEAT EXCHANGE

Zhang Junfeng¹, Xiao Bin¹, Wang Liming¹, Xin Min¹, Zhu Jiahua²

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文章历史 +

摘要

该文建立高温填充床储热系统的仿真模型,以二元硝酸盐作为传热流体介质,分别采用石英石和钢渣作为多孔介质填充材料对单罐熔融盐多孔介质斜温层储热机制进行流体仿真研究。在保证其他条件一定的情况下,通过仿真分析多孔介质填充材料的不同物理性质对储热系统储热性能的影响来优化储热系统设计,分别得到多孔介质区域内流速、孔隙率、颗粒直径和储热罐高径比对系统性能的影响规律,整体研究结论能够为太阳能光热电站储热介质筛选、填充床构型设计与罐体尺寸优化提供数据支撑与设计参考。

Abstract

In this paper, a simulation model for a high-temperature packed-bed thermal energy storage system is constructed. Binary nitrate salt is used as the heat transfer fluid, and quartz stone and steel slag are adopted as porous filling materials respectively. The fluid simulation research is implemented on the thermocline stratification heat storage mechanism of single-tank molten salt systems with porous media. While keeping other conditions unchanged, the effects of varying physical properties of porous fillers on the heat storage performance are analyzed through simulations to optimize the system design. The influence laws of flow velocity in the porous region, porosity, particle diameter and the height-diameter ratio of the heat storage tank on system performance are obtained. The overall research results can provide data support and design references for thermal storage medium screening, packed-bed configuration design and tank size optimization of solar thermal power stations.

导出引用

张俊峰, 肖斌, 王黎明, 信敏, 朱佳华. 基于熔融盐换热的多孔介质单储罐斜温层储热机制研究[J]. 太阳能学报. 2026, 47(9): 76-87 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0804

Zhang Junfeng, Xiao Bin, Wang Liming, Xin Min, Zhu Jiahua. RESEARCH ON HEAT STORAGE MECHANISM OF POROUS MEDIUM SINGLE TANK THERMOCLINE BASED ON MOLTEN SALT HEAT EXCHANGE[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 76-87 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0804

中图分类号： TK513.5

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