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细多管CPC线性菲涅耳聚光系统仿真及实验研究

Simulation and Experimental Study of a Thin Multi-Tube Compound Parabolic Condenser Linear Fresnel Spot System

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摘要

线性菲涅耳聚光发电系统具有迎风面小、土地占有率高等优点, 从而受到市场的青睐, 但是聚光系统建造的高成本制约着其发展应用。针对上述问题, 采用多个细集热管代替一个粗集热管的方式来解决, 使复合抛物面聚光器(CPC)的总开口达到1118.79 mm, 一次反射镜的宽度达到831.81 mm。同时本文对于该设计思路下的聚光系统进行了研究, 得到CPC开口半角θ=45°较好, 在工作时长6 h内, 照射在一次镜场中的光线进入CPC的比率均达到75%以上, 瞬时进入率也高达75%以上, 实验验证在夏天晴朗天气中午系统光学效率达到61%。

Abstract

A linear Fresnel concentrating power-generation system is favored by the market because of its small windward area and high land-occupation rate. However, the further reduction of the construction cost of the concentrating system is an ongoing problem. Therefore, we include several thin heat pipes instead of a crude heat pipe to solve this problem so that the total opening and primary reflector widths are increased to 1118.79 and 831.81 mm, respectively, for the compound parabolic condenser (CPC). Additionally, we study the light-gathering system for this design idea and find a CPC opening half-angle of 45°. For a working time of 6 h, the light that is incident on the primary mirror field is reflected into the CPC, and the rate is above 75%. Additionally, the instantaneous rate of light entry into the CPC is more than 75%. The experimental results showed that the optical efficiency reached 61% at noon in summer/sunny weather.

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中图分类号:O436

DOI:10.3788/lop56.030801

所属栏目:几何光学

基金项目:国家科技支撑计划(2014BAF01B00)、甘肃省科技计划(2017GS11036, 18JR3RA116)、甘肃省陇原青年创新创业人才项目

收稿日期:2018-07-04

修改稿日期:2018-07-28

网络出版日期:2018-08-31

作者单位    点击查看

魏博斌:中国能源建设集团甘肃省电力设计院有限公司, 甘肃 兰州 730050
孔令刚:兰州交通大学国家绿色镀膜技术与装备工程技术研究中心, 甘肃 兰州 730070
蒋庆安:兰州交通大学国家绿色镀膜技术与装备工程技术研究中心, 甘肃 兰州 730070
曹玉梅:中国能源建设集团甘肃省电力设计院有限公司, 甘肃 兰州 730050

联系人作者:孔令刚(konglinggang1978@163.com)

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引用该论文

Wei Bobin,Kong Linggang,Jiang Qing′an,Cao Yumei. Simulation and Experimental Study of a Thin Multi-Tube Compound Parabolic Condenser Linear Fresnel Spot System[J]. Laser & Optoelectronics Progress, 2019, 56(3): 030801

魏博斌,孔令刚,蒋庆安,曹玉梅. 细多管CPC线性菲涅耳聚光系统仿真及实验研究[J]. 激光与光电子学进展, 2019, 56(3): 030801

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