EN基于数值仿真的抛物槽式太阳能集热器研究进展
Research Progress of Parabolic Trough Solar Collector Based on Numerical Simulation
- 发电技术 2021年42卷第6期 页码：643-652
- 作者机构：
1.西安交通大学化学工程与技术学院, 陕西省 西安市 710049
2.华北电力大学能源动力与机械工程学院, 北京市 昌平区 102206
- 作者简介：
[ "王立(1996), 男, 硕士研究生, 主要研究方向为太阳能光热利用技术, 15188371956@163.com" ]
[ "张智(1997), 男, 硕士研究生, 主要研究方向为太阳能光热利用技术" ]
[ "施瑶璐(1998), 女, 硕士研究生, 主要研究方向为太阳能光热利用技术, syl1119@stu.xjtu.edu.cn" ]
[ "徐超(1980), 男, 博士, 教授, 主要研究方向为太阳能热利用关键技术, mechxu@ncepu.edu.cn" ]
孙杰(1982), 男, 博士, 研究员, 主要研究方向为太阳能热利用关键技术与系统集成, 本文通信作者, sunjie@xjtu.edu.cn
- 基金信息：国家自然科学基金项目(51776196)
DOI：10.12096/j.2096-4528.pgt.21061
中图分类号： TK513.1收稿：2021-05-20，
纸质出版：2021-12-31
- 稿件说明：
移动端阅览
王立, 张智, 施瑶璐, 等. 基于数值仿真的抛物槽式太阳能集热器研究进展[J]. 发电技术, 2021,42(6):643-652.
Li WANG, Zhi ZHANG, Yaolu SHI, et al. Research Progress of Parabolic Trough Solar Collector Based on Numerical Simulation[J]. Power Generation Technology, 2021, 42(6): 643-652.
王立, 张智, 施瑶璐, 等. 基于数值仿真的抛物槽式太阳能集热器研究进展[J]. 发电技术, 2021,42(6):643-652. DOI： 10.12096/j.2096-4528.pgt.21061.
Li WANG, Zhi ZHANG, Yaolu SHI, et al. Research Progress of Parabolic Trough Solar Collector Based on Numerical Simulation[J]. Power Generation Technology, 2021, 42(6): 643-652. DOI： 10.12096/j.2096-4528.pgt.21061.
摘要
介绍了抛物槽式太阳能集热器的数值仿真研究进展，特别是对集热管内流场与聚光器外流场所涉及的数值仿真研究进行了综述。在集热管内流场研究中，传热介质类型、聚光特性对集热性能与热应力分布影响显著，尤其在水/蒸汽介质集热回路中，特有的气–液两相流叠加管外非均匀热流密度分布有可能导致严重的集热管热应力弯曲变形问题。在聚光器外流场研究中，由于实际风速较大，超薄镜片的结构强度较低，聚光器承受风载变形，致使光学效率损失，甚至会导致抛物槽式集热器结构失效，直接影响整个集热镜场正常工作。
Abstract
The research progress of numerical simulation of parabolic trough solar collector was introduced. Especially the numerical simulation studies of the internal flow field in the collector tube and the external flow field of the concentrator were reviewed. In the study of the internal flow field in the collector tube
the type of heat transfer fluids and the characteristics of optical concentration have a significant effect on the heat collection performance and thermal stress distribution
especially in the water/steam medium heat collection loop. The unique gas-liquid two-phase flow superposition of the non-uniform heat flux distribution outside the tube may lead to serious thermal stress bending deformation of the collector tube. In the study of the external flow field of the concentrator
due to the high actual wind speed and the low structural strength of the ultra-thin lens
the concentrator is subjected to wind load deformation
resulting in the loss of optical efficiency
and even leading to the failure of the parabolic trough collector structure
which directly affects the normal operation of the whole collector field.
关键词
Keywords
references
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