研究目的
To design and build a universal solar simulator capable of providing both concentrated and non-concentrating (quasi-collimated) light for a wide range of solar energy research applications.
研究成果
The universal solar simulator successfully provides both concentrated and non-concentrating light, meeting the needs of a wide range of solar energy research applications. It achieves high radiative flux and good uniformity, demonstrating its potential as a versatile experimental platform.
研究不足
The divergence angle and uniformity of the quasi-collimated light field are not as good as natural sunlight. The spectrum of the solar simulator needs further correction to match the AM1.5 spectrum. The design and optimization process is complex and time-consuming.
1：Experimental Design and Method Selection:
The solar simulator was designed with three major subsystems: a lamp array, an optical integrator, and a collimating mirror. The Monte Carlo ray-tracing (MCRT) technique was used for optimization.
2：Sample Selection and Data Sources:
The performance was measured using a water-cooled Lambertian target with a CCD camera and a calibrated heat ?ux gauge for the lamp array, and an optical power meter for the quasi-collimated light field.
3：List of Experimental Equipment and Materials:
Seven 10 kWe xenon short-arc lamps, custom-designed re?ectors, optical integrator, collimating mirror, quartz reactor, and metals (niobium and tantalum) for melting experiments.
4：Experimental Procedures and Operational Workflow:
The lamp array was optimized for transfer efficiency. The optical integrator and collimating mirror were designed to homogenize and collimate the light. Performance measurements were conducted at various power outputs.
5：Data Analysis Methods:
The radiative flux distribution was analyzed using grayscale images converted into flux distribution maps. The uniformity and divergence angle of the quasi-collimated light were calculated from measured light intensities.
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