Thermal performance of solar trough system with a novel cavity receiver

被引：0

作者：

Song Z. ^{[1
]}

You S. ^{[1
]}

Zhang H. ^{[1
]}

Zheng W. ^{[1
]}

Cao R. ^{[2
]}

Gao X. ^{[1
]}

机构：

[1] School of Environmental Science and Engineering, Tianjin University, Tianjin

[2] China Architecture Design & Research Group, Beijing

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 03期

关键词：

Cavity receiver; Collector efficiency; Heat transfer performance; Solar collectors;

D O I：

10.19912/j.0254-0096.tynxb.zwh-yutou-02

中图分类号：

学科分类号：

摘要：

A novel cavity receiver is proposed for parabolic trough collectors. The heat-collecting efficiency of it is high, and it is simple to connect and operate and maintain. In this study, a three-dimensional heat transfer model of the novel cavity receiver is built for simulation. And an actual system of the parabolic trough collector with the novel cavity receiver is built for experiments. By comparing the receiver's instantaneous efficiency in the simulation and in the experiments, the accuracy of the model is verified. In addition, the thermal performance of the novel cavity receiver in different environment parameters and working parameters is quantitatively analyzed. The results showed that heat-collecting efficiency increases with the increase of normal direct solar irradiance and ambient temperature, decreases with the increase of ambient wind velocity and inlet fluid temperature, and is less affected by mass flow rate of the heat transfer fluid. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：475 / 479

页数：4

共 11 条

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