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

Bobin Wei; Linggang Kong; Qing'an Jiang; Yumei Cao

doi:10.3788/LOP56.030801

Laser & Optoelectronics Progress, Volume. 56, Issue 3, 030801(2019)

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

Bobin Wei¹, Linggang Kong^2、*, Qing'an Jiang², and Yumei Cao¹

Author Affiliations

¹ China Energy Engineering Group Gansu Electric Power Design Institute Company Limited, Lanzhou, Gansu 730050, China

² National Engineering Research Center for Technology and Equipment of Environmental Deposition, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China

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Figures & Tables(10)

Fig. 1. Schematic of CPC

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Fig. 2. Arrangement of mirror filed

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Fig. 3. Diagram of the change of land occupancy rate in a mirror field without shadow and sheltered working hours

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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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Fig. 5. Instantaneous efficiency of light entering the CPC rate across the entire primary mirror field

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Fig. 6. Experimental setup and application diagram

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Table 1. Data sheet with a half opening angle of 60°
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Table 1. 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

Table 2. Data sheet for CPC with a half opening angle of 45°
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Table 2. 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

Table 3. Value of λN
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Table 3. 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

Table 4. Data comparisonof linear Fresnel power generation system

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Table 4. 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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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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