Design of Solar Dish Concentrator for Improving Flux Uniformity on Planar Receiver

Jian Yan; Duzhong Nie; Youduo Peng; Hai Wang; Yongxiang Liu; Yong Tian

doi:10.3788/AOS202040.0922002

Acta Optica Sinica, Volume. 40, Issue 9, 0922002(2020)

Design of Solar Dish Concentrator for Improving Flux Uniformity on Planar Receiver

Jian Yan^1、*, Duzhong Nie^1,2, Youduo Peng¹, Hai Wang³, Yongxiang Liu¹, and Yong Tian¹

Author Affiliations

¹School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China

²School of Intelligent Equipment Technology, Hunan Vocational College of Science and Technology, Changsha, Hunan 410004, China

³College of Mechanical and Automotive Engineering, Zhaoqing University, Zhaoqing, Guangdong 526061, China

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Figures & Tables(16)

Fig. 1. Schematic of mirror rearrangement of parabolic dish concentrator. (a) Mirror rearrangement parameters; (b) ray transmission in symmetrical plane of mirror unit km

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Fig. 2. Schematic of generatrix of non-imaging dish concentrator

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Fig. 3. Optical discretization of plane receiver

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Fig. 4. Optimized design flow chart of solar dish concentrator/plane receiver system

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Fig. 5. Flux distribution in focal plane of improved parabolic dish concentrator system using mirror translation strategy. (a) Comparison of flux distributions before and after improvement; (b) comparison of optimization results under different parameters

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Fig. 6. Non-uniform factor and optical intercept efficiency of improved parabolic dish concentrator system using mirror translation strategy

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Fig. 7. Local concentration ratio distribution of improved parabolic dish concentrator system using mirror rotation strategy.(a) K=6, f=8450 mm; (b) K=6, f=6000 mm; (c) K=10, f=8450 mm; (d) K=10, f=6000 mm

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Fig. 8. Results of improved parabolic dish concentrator system using mirror rotation strategy. (a) Local concentration ratio; (b) non-uniform factor and optical intercept efficiency

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Fig. 9. Optimization results of non-imaging dish concentrator system. (a) Local concentration ratio; (b) non-uniform factor and optical intercept efficiency

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Fig. 10. Local concentration ratio distribution of optimized non-imaging dish concentrator system.(a) K=6, f=8450 mm; (b) K=6, f=6000 mm; (c) K=10, f=8450 mm; (d) K=10, f=6000 mm

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Fig. 11. Optical model of non-imaging dish system based on OptisWorks software

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Fig. 12. Flux density distributions of metal coil receiver under different concentrators. (a) With parabolic dish concentrator; (b) with optimized non-imaging dish concentrator

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Table 1. Geometric parameter and optical parameter of solar concentrator system

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Table 1. Geometric parameter and optical parameter of solar concentrator system

Parameter	Value
R /mm	7000
f /mm	8450, 6000
K	6, 10
M_K	[12, 12, 12, 24, 24, 24] when K=6[12, 12, 12, 12, 12, 24, 24, 24, 24, 24] when K=10
R₁/mm	200
ρ_m	0.93
W₀ /(W·m^-2)	800
Solar half angle δ /mrad	4.65
Absorptivity of plane receiver ρ_wall	1.0
R_constrain /mm	200
R_target /mm	180

Table 2. Optimization results of improved parabolic dish concentrator system using mirror translation strategy

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Table 2. Optimization results of improved parabolic dish concentrator system using mirror translation strategy

K	f /mm	T	C_average	F(X)	C_max
	8450	Ideal parabolic dish concentrator	1402.00	3.62	24737.01
	6000	Ideal parabolic dish concentrator	1402.00	4.22	37245.26
6	8450	[292.35, 231.96, 336.69, -236.19, 180.59, -131.88]	1264.95	0.34	1820.83
	6000	[-157.84, 146.86, 242.00, 158.88, 108.55, -66.92]	1321.14	0.37	1935.91
10	8450	[-292.35, -100.19, -264.90, 179.80, 336.69, -261.18, -208.04, -185.48, -154.95, 122.24]	1327.35	0.30	1821.69
	6000	[-188.04, -259.41, 146.86, -299.16, 242.00, 183.05, -145.26, 107.86, 89.62, -48.52]	1257.55	0.31	1763.81

Table 3. Optimization results of improved parabolic dish concentrator system using mirror rotation strategy

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Table 3. Optimization results of improved parabolic dish concentrator system using mirror rotation strategy

K	f /mm	G₁	C_average	F(X)	C_max
6	8450	[-9.199, -4.233, 8.009, 7.032, 6.105, 2.848]	1380.41	0.36	2399.40
	6000	[8.212, 11.627, 10.799, 8.534, 5.776, 3.204]	1395.90	0.51	2909.45
10	8450	[-7.556, 7.986, 2.508, 8.066, 7.752, 6.952, 2.346, -5.712, 5.254, 4.154]	1396.80	0.42	2709.23
	6000	[9.278, 13.176, 4.202, 11.345, -9.955, 9.328, 7.449, 6.148, 3.840, 3.701]	1393.65	0.47	2306.62

Table 4. Optimization results of parameters of non-imaging dish concentrator system

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Table 4. Optimization results of parameters of non-imaging dish concentrator system

K	f /mm	G₂	C_average	F(X)	C_max
6	8450	[8.839, 8.800, 7.692, 2.745, 6.200, 4.885]	1324.67	0.18	1730.97
	6000	[-7.046, 11.530, 10.551, 8.271, 5.965, -2.638]	1351.14	0.20	1722.93
10	8450	[-1.511, 7.773, -5.589, 8.067, -3.153, 2.365, 6.567, 6.200, -5.314, 4.885]	1349.91	0.21	1798.43
	6000	[-3.898, 9.788, 12.405, -11.400, 7.990, 8.758, 7.755, -5.748, 2.280, -3.451]	1357.50	0.25	2055.24

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Jian Yan, Duzhong Nie, Youduo Peng, Hai Wang, Yongxiang Liu, Yong Tian. Design of Solar Dish Concentrator for Improving Flux Uniformity on Planar Receiver[J]. Acta Optica Sinica, 2020, 40(9): 0922002

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Paper Information

Category: Optical Design and Fabrication

Received: Dec. 16, 2019

Accepted: Feb. 10, 2020

Published Online: May. 6, 2020

The Author Email: Yan Jian (yanjian1988@hnust.edu.cn)

DOI:10.3788/AOS202040.0922002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology