可改善平面接收器能流均匀性的太阳能碟式聚光器设计 
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Design of Solar Dish Concentrator for Improving Flux Uniformity on Planar Receiver
1 湖南科技大学机电工程学院, 湖南 湘潭 411201
2 湖南科技职业学院智能装备技术学院, 湖南 长沙 410004
3 肇庆学院机械与汽车工程学院, 广东 肇庆 526061
图 & 表
图 1. 抛物碟式聚光器的镜面重新布置示意图。(a)镜面重新布置参数;(b)镜面单元km对称平面内光线传输
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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图 2. 非成像碟式聚光器的母线示意
Fig. 2. Schematic of generatrix of non-imaging dish concentrator
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图 3. 平面接收器的光学离散
Fig. 3. Optical discretization of plane receiver
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图 4. 太阳能碟式聚光器/平面接收系统的优化设计流程
Fig. 4. Optimized design flow chart of solar dish concentrator/plane receiver system
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图 5. 镜面平移策略改进抛物碟式聚光系统后的焦平面能流分布。(a)改进前后能流分布对比;(b)不同参数下优化结果对比
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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图 6. 镜面平移策略改进抛物碟式聚光系统后的非均匀因子和光学拦截效率
Fig. 6. Non-uniform factor and optical intercept efficiency of improved parabolic dish concentrator system using mirror translation strategy
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图 7. 镜面旋转策略改进抛物碟式聚光系统的局部聚光比分布。(a) K=6, f=8450 mm; (b) K=6, f=6000 mm; (c) K=10, f=8450 mm; (d) K=10, f=6000 mm
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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图 8. 镜面旋转策略改进抛物碟式聚光系统的结果。(a)局部聚光比;(b)非均匀因子和拦截效率
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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图 9. 非成像碟式聚光系统的优化结果。(a)局部聚光比;(b)非均匀因子和拦截效率
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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图 10. 优化的非成像碟式聚光系统的局部聚光比分布。(a) K=6, f=8450 mm; (b) K=6, f=6000 mm; (c) K=10, f=8450 mm; (d) K=10, f=6000 mm
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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图 11. 基于OptisWorks的非成像碟式聚光系统光学模型
Fig. 11. Optical model of non-imaging dish system based on OptisWorks software
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图 12. 不同聚光器下金属盘管接收器的能流密度分布。(a)采用抛物碟式聚光器;(b)采用优化的非成像碟式聚光器
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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表 1太阳能聚光系统的几何参数和光学参数
Table1. Geometric parameter and optical parameter of solar concentrator system
| Parameter | Value |
|---|
| R /mm | 7000 | | f /mm | 8450, 6000 | | K | 6, 10 | | MK | [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 | | ρm | 0.93 | | W0 /(W·m-2) | 800 | | Solar half angle δ /mrad | 4.65 | | Absorptivity of plane receiver ρwall | 1.0 | | Rconstrain /mm | 200 | | Rtarget /mm | 180 |
|
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表 2采用镜面平移策略改进抛物碟式聚光系统的优化结果
Table2. Optimization results of improved parabolic dish concentrator system using mirror translation strategy
| K | f /mm | T | Caverage | F(X) | Cmax |
|---|
| 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 |
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表 3采用镜面旋转策略改进抛物碟式聚光系统的优化结果
Table3. Optimization results of improved parabolic dish concentrator system using mirror rotation strategy
| K | f /mm | G1 | Caverage | F(X) | Cmax |
|---|
| 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 |
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表 4非成像碟式聚光系统参数优化结果
Table4. Optimization results of parameters of non-imaging dish concentrator system
| K | f /mm | G2 | Caverage | F(X) | Cmax |
|---|
| 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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颜健, 聂笃忠, 彭佑多, 王海, 刘永祥, 田勇. 可改善平面接收器能流均匀性的太阳能碟式聚光器设计[J]. 光学学报, 2020, 40(9): 0922002. 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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