Experimental study of tubular air receiver for solar tower

被引：0
|
作者：
Qiu K. [1 ]
Li H. [1 ]
Chen D. [1 ]
Liu D. [2 ]
Chen J. [1 ]
Xiao G. [1 ]
机构：
[1] State Key Laboratory of Clean Energy Utilization of Zhejiang University, Hangzhou
[2] Nantong Wanda Boiler Co. Ltd, Nantong
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 10期
关键词：
Brayton cycle; Experimental study; Pressured air receiver; Solar energy; Solar tower concentrator;
D O I：
10.19912/j.0254-0096.tynxb.2019-1001
中图分类号：
学科分类号：
摘要：
Solar air Brayton cycle with energy storage is a potential flexible peak regulating power source, which has the advantages of stable power generation and quick response capability. A high temperature tubular air receiver was designed and fabricated for solar air Brayton cycle, whose thermal performance was studied under real concentrating conditions at the solar tower test platform of ZJU. The experimental results show that the outlet temperature changes only 0.3% when the DNI drop by 31.1% suddenly, indicating a good operating stability of a solar Brayton system with the receiver. The outlet temperature of pressured air reaches 904 ℃, with the maximum thermal power of 56 kW, matching the requirements of a 10 kW solar Brayton cycle system. Design optimization was conducted for the receiver based on experimental data, and the efficiency can be increased further by 15.6% when the aperture diameter decreases by 20% and the pressure loss can be decreased by 81% when the inlet pressure is increased 100 kPa and the inner diameter of absorber tubes is increased 1.6 mm. The study indicates a practical way to improve the performance of high temperature tubular air receiver. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：116 / 123
页数：7
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