细多管CPC线性菲涅耳聚光系统仿真及实验研究 
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Simulation and Experimental Study of a Thin Multi-Tube Compound Parabolic Condenser Linear Fresnel Spot System
1 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
2 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
图 & 表
图 1. CPC原理图
Fig. 1. Schematic of CPC
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图 2. 镜场布置图
Fig. 2. Arrangement of mirror filed
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图 3. 一次反射镜镜场土地占有率随无阴影和遮挡工作时长的变化图
Fig. 3. Diagram of the change of land occupancy rate in a mirror field without shadow and sheltered working hours
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图 4. 照射在镜场中的光线进入CPC率随镜场工作时长的变化图
Fig. 4. Rate at which the light entering the field enters the CPC varies with the length of the field work
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图 5. 照射在整个一次反射镜镜场中的光线进入CPC率的瞬时效率
Fig. 5. Instantaneous efficiency of light entering the CPC rate across the entire primary mirror field
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图 6. 实验装置及应用图
Fig. 6. Experimental setup and application diagram
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表 1CPC开口半角为60°的数据表
Table1. Data sheet with a half opening angle of 60°
| Item | Value |
|---|
| Distance h from center of thecollector tube to the CPC top /mm | 50 | | Parabolic focal length f /mm | 74.985 | | CPC opening width K /mm | 192.624 | | Total opening width of CPC 5K /mm | 963.124 |
|
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表 2CPC开口半角为45°的数据表
Table2. Data sheet for CPC with a half opening angle of 45°
| Item | Value |
|---|
| Distance h from center of thecollector tube to the CPC top / mm | 50 | | Parabolic focal length f / mm | 69.752 | | CPC opening width K / mm | 223.753 | | Total opening width of CPC 5K / mm | 1118.798 |
|
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表 3λN的值
Table3. Value of λN
| N | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| Angle/(°) | 90 | 84.63 | 79.35 | 74.25 | 69.39 | 64.82 | 60.57 | 56.65 | 53.05 | 49.76 | 46.77 |
|
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表 4线性菲涅耳发电系统数据比较
Table4. Data comparisonof linear Fresnel power generation system
| Item | Proposedsystem (thinmulti tube) | Constructionprojects (arough pipe) |
|---|
| Total opening halfangle of CPC /(°) | 45 | 45 | | Total opening widthof CPC /mm | 1118.79 | 475.49[15] | | Convergence rate of CPC /% | 95[8-10] | 78.42[15] | | Width of the mirror /mm | 831.81 | 500(V-type)[14] | | Number of mirrors | 20 | 32 | | Rate of rays light enteringthe CPC working 6 h /% | 75.19 | 73.28[14] | | Optical efficiency /% | 58 | 56[15] |
|
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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. Bobin Wei, Linggang Kong, Qing'an Jiang, Yumei Cao. Simulation and Experimental Study of a Thin Multi-Tube Compound Parabolic Condenser Linear Fresnel Spot System[J]. Laser & Optoelectronics Progress, 2019, 56(3): 030801.
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