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- 摘要
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- 实验方案
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A universal solar simulator for focused and collimated beams
摘要： This paper presents a 70 kWe indoor solar simulator for concentrating and non-concentrating (quasi-collimated light) solar applications. Three major subsystems compose this solar simulator: a lamp array, an optical integrator, and a collimating mirror. The lamp array consists of seven radiation modules, each comprising a 10 kWe xenon short-arc lamp coupled to a custom-designed re?ector in the shape of a truncated ellipsoid. The optical integrator and collimating mirror are applied to homogenize the intensity distribution of light and ?x the light angle. The solar simulator can continuously produce concentrated high-?ux, medium-?ux and non-concentrating quasi-collimated sunlight. For a focal plane with a 60 mm diameter circular target, the measured peak and mean radiative ?ux are 9200 kW/m2 and 5100 kW/m2, respectively, and the corresponding radiation power is 14.45 kW. For a 4 × 3 m rectangular quasi-collimated light area, the measured radiative ?ux, half divergence angle, and uniformity of the light are 0.94 kW/m2, 1.3°, and 92%, respectively. At 30% of the rated power output, the temperature of the parabolic trough receiver increases to 350 °C; while at 80% of the rated power output, the focused radiation can easily melt the metal of tantalum (in a quartz reactor), which corresponds to a melting temperature of more than 3290 K. The solar simulator can continuously produce concentrated high-?ux, medium-?ux and non-concentrating sunlight, which can serve as a universal experimental platform for solar energy research.
关键词： Universal,Solar energy,Focused,Solar simulator,Collimated
更新于2025-09-23 15:21:21
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[IEEE 2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) - Pitesti, Romania (2019.6.27-2019.6.29)] 2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) - Design of an LED-based solar spectrum simulator for porphyrin dye-sensitized solar cell characterization
摘要： This paper presents the design considerations for a special solar spectrum simulator, based on LED technology, specifically conceived for the characterization of porphyrin-based dye-sensitized solar cells.
关键词： solar spectrum,photovoltaics,solar simulator,DSSC,LED
更新于2025-09-23 15:21:01
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A novel flux mapping system for high-flux solar simulators based on the indirect method
摘要： It is an important and challenging work to measure the energy flux density distribution of the concentrated radiation during the concentrating solar power applications. In order to evaluate the performance of a multi-lamps high-flux solar simulator, a novel flux mapping system based on the indirect method has been developed. It features two Lambertian targets. One is a stationary water-cooled Lambertian target where there is a circular hole in the center used to install a flux sensor. The other is a movable Lambertian target used to cover the flux sensor when shooting the concentrated light beam image. This kind of design can obtain the gray value of flux sensor region directly and does not require the interpolation in the sensor-influencing area. The design theory and principle, the hardware implementation and the experimental validation of this flux mapping system have been presented in detail. The repeatability experiments and the error analyses showed that the total relative errors of this flux mapping system were ± 8.1% with a repeatability of 1.1%, and ± 8.5% with a repeatability of 2.7%, for evaluating the flux and the total radiant power, respectively.
关键词： The indirect method,Concentrated solar radiation,High-flux solar simulator,Flux mapping system
更新于2025-09-19 17:15:36
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Flexible high flux solar simulator based on optical fiber bundles
摘要： High ?ux solar simulators have been widely used in solar thermal research due to their controllable ?ux intensity. Simulators based on optical-?ber transmission have recently gained further attention because of their superior ?exibility. In this study, we developed a ?exible, high-?ux solar simulator that consists of a xenon lamp-truncated ellipsoidal mirror array, a multicomponent glass optical-?ber bundle and a secondary concentrator. The ?exibility of the ?bers allows the simulator to produce various ?ux distributions in 2D and 3D space through corresponding optical-?ber bundle arrangements. Each bundle has a diameter of 10 mm and contains 30,000 optical ?bers that can transmit the high ?ux of a xenon lamp to a target. The density of the spot can reach 500 kW/m2. The intensity of the ?ux produced is determined by the power of the lamps, and the transmission properties and temperature resistance of the ?ber bundle.
关键词： Flux,Flexible,Solar simulator,Optical ?ber
更新于2025-09-19 17:13:59