Dynamic mesh-based analysis of irradiance characteristics of solar simulator

Qinglong Meng; Yanpeng Li; Yaxiu Gu

doi:10.1117/12.2060645

8 September 2014 Dynamic mesh-based analysis of irradiance characteristics of solar simulator

Qinglong Meng, Yanpeng Li, Yaxiu Gu

Proceedings Volume 9195, Optical System Alignment, Tolerancing, and Verification VIII; 91950L (2014) https://doi.org/10.1117/12.2060645
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

The unsteady motion of a solar simulator was simulated using dynamic mesh technology in Fluent software. The dynamic irradiation characteristics of the simulator were studied under various conditions. Mesh updates were achieved using a dynamic layering method, and the periodic lifting motion of the simulator was defined using user-defined functions (UDF). Detailed dynamic irradiance characteristics were obtained for comparison with experimental results. The results showed that the simulator height and the number of light sources used were the main factors that affected the irradiance. The irradiance has a linear relationship with the simulator height, which means that the irradiance nonuniformity decreases with decreasing solar height; in addition, the sum of the irradiances under the various operating conditions matches the superposition of the irradiance. The dynamic irradiation numerical results are consistent with the experimental results at typical points, which verifies the reliability of the moving mesh numerical model. The validated model can be used to study various simulator conditions and provides forecast data for diurnal variation simulation of solar radiation.

Citation Download Citation

Qinglong Meng, Yanpeng Li, and Yaxiu Gu "Dynamic mesh-based analysis of irradiance characteristics of solar simulator", Proc. SPIE 9195, Optical System Alignment, Tolerancing, and Verification VIII, 91950L (8 September 2014); https://doi.org/10.1117/12.2060645

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KEYWORDS

Lamps

Computer simulations

Solar energy

Solar radiation models

Fluctuations and noise

Sensors

Data modeling

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