二次反射聚光熔盐吸热器的实验与数值模拟研究

谢文韬; 顾新壮; 代彦军; 徐达; 林蒙; 余波; 宋士雄

doi:10.19805/j.cnki.jcspe.2025.240162

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二次反射聚光熔盐吸热器的实验与数值模拟研究

新能源与储能 | 更新时间：2025-10-16

- 二次反射聚光熔盐吸热器的实验与数值模拟研究
- Experimental and Numerical Simulation Study on a Beam-down Concentrating Molten Salt Receiver
- 动力工程学报 2025年45卷第5期页码：685-692
- 作者机构：
  
  1. 鑫晨光热(上海)新能源有限公司,上海,201114
  2. 上海交通大学机械与动力工程学院,上海,200240
  3. 南方科技大学机械与能源工程系,广东,深圳,518055
  4. 中国电力工程顾问集团西南电力设计院有限公司,四川,成都,610057
  5. 上海晶电新能源有限公司,上海,201114
- 作者简介：
  
  [ "谢文韬(1983—),男,湖南衡阳人,正高级工程师,博士,研究方向为太阳能发电与热利用、DAC和新能源制氢" ]
- 基金信息：
  
  国家重点研发计划“政府间国际科技创新合作”重点专项资助项目(2022YFE0196500);上海市2023年度“科技创新行动计划”科技支撑碳达峰碳中和专项资助项目(23DZ1201000);中国电力工程顾问集团有限公司2023年度第二批重大科技专项资助项目(DG3-A03-2023);国家重点研发计划“可再生能源技术”重点专项资助项目(2023YFB4204301、2023YFB4204303)
- DOI：10.19805/j.cnki.jcspe.2025.240162
  中图分类号： TK513.1;TM615
- 网络出版：2025-05-19，
  
  纸质出版：2025
- 稿件说明：
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谢文韬,顾新壮,代彦军,徐达,林蒙,余波,宋士雄. 二次反射聚光熔盐吸热器的实验与数值模拟研究动力工程学报, 2025, 45(5): 685-692 https://doi.

org/10.19805/j.cnki.jcspe.2025.240162
谢文韬,顾新壮,代彦军,徐达,林蒙,余波,宋士雄. 二次反射聚光熔盐吸热器的实验与数值模拟研究动力工程学报, 2025, 45(5): 685-692 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240162.

org/10.19805/j.cnki.jcspe.2025.240162 DOI：

摘要

设计并搭建了T型熔盐吸热器

通过建立熔盐吸热器的三维数值模型

将二次聚光太阳能照射的边界条件与熔盐流动、换热以及光吸收相耦合

揭示了吸热器的能量损耗机制

并分析对比了熔盐的消光系数、流量分配和滤光网位置对吸热器内部温度分布的影响。结果表明:熔盐出口温度达到560~570 ℃;吸热器的主要能量损失来自开口再辐射损失、对流损失和光学反射损失等;相比于具有较大消光系数和浅层滤光网的熔盐吸热器

消光系数较小的熔盐吸热器内部温度更高

深层熔盐大量吸热后无法被快速排出

导致了吸热器内部的热量堆积。

Abstract

A T-shaped molten salt receiver was designed and modelled. A 3D numerical model of the reciver was established

coupling the boundary conditions of the beam-down concentrated solar radiation with molten salt flow

heat transfer

and solar energy absorption. The energy loss mechanisms of the receiver were revealed and the impacts of the molten salt's extinction coefficient

flow distribution

and filter mesh location on the internal temperature distribution of the receiver were analyzed via this approach. Results show that the outlet molten salt temperature reaches 560-570 ℃. The main energy losses are re-radiation loss

convection loss and optical reflection loss. The receiver with smaller extinction coefficient exhibits higher internal temperatures compared with receivers with larger extinction coefficient and shallow filter mesh

as the substantial heat absorbed by deep-layer molten salt cannot be rapidly discharged

leading to a heat accumulation inside the receiver.

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Keywords

references

QIU Yu, LI Mingjia, LI Mengjie, et al. Numerical and experimental study on heat transfer and flow features of representative molten salts for energy applications in turbulent tube flow[J]. International Journal of Heat and Mass Transfer, 2019, 135: 732-745.

TETREAULT-FRIEND M, GRAY L A, BERDIBEK S, et al. Optical properties of high temperature molten salt mixtures for volumetrically absorbing solar thermal receiver applications[J]. Solar Energy, 2017, 153: 238-248.

KUMAR K R, CHAITANYA N V V K, NATARAJAN S K. Solar thermal energy technologies and its applications for process heating and power generation—a review[J]. Journal of Cleaner Production, 2021, 282: 125296.

ROMERO M, STEINFELD A. Concentrating solar thermal power and thermochemical fuels[J]. Energy & Environmental Science, 2012, 5(11): 9234-9245.

刘赟, 赵伯阳, 申文然, 等. 采用渐变结构提升鼓形容积式多孔介质吸热器传热性能[J]. 动力工程学报, 2023, 43(4): 461-467. LIU Yun, ZHAO Boyang, SHEN Wenran, et al. Heat transfer performance of drum-type porous volumetric solar receiver improved by gradually changed structure[J]. Journal of Chinese Society of Power Engineering, 2023, 43(4): 461-467.

王婷, 庞力平, 杨勇平. 两段式塔式太阳能腔式吸热器设计及性能分析[J]. 动力工程学报, 2017, 37(4): 313-320.WANG Ting, PANG Liping, YANG Yongping. Design and performance analysis of a two-stage tower-type solar cavity receiver[J]. Journal of Chinese Society of Power Engineering, 2017, 37(4): 313-320.

熊烈, 杨凯, 黄晓宏, 等. 超临界二氧化碳太阳能腔式吸热器数值模拟研究[J]. 动力工程学报, 2023, 43(8): 1030-1038. XIONG Lie, YANG Kai, HUANG Xiaohong, et al. Numerical simulation of supercritical carbon dioxide solar cavity receiver[J]. Journal of Chinese Society of Power Engineering, 2023, 43(8): 1030-1038.

WILCOX D C. Turbulence modeling for CFD[M]. 3rd ed. La Cafiada, California, USA: DCW Industries, Inc, 2006: 53-456.

SEO J, SHIN D. Enhancement of specific heat of ternary nitrate (LiNO3-NaNO3-KNO3) salt by doping with SiO2 nanoparticles for solar thermal energy storage[J]. Micro & Nano Letters, 2014, 9(11): 817-820.

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