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Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Frontiers in Energy 2019年第4期13卷 673-683页

作者： Hu XIAO Yanping ZHANG Cong YOU Chongzhe ZOU Quentin FALCOZ School of Energy and Power Engineering Huazhong University of Science and TechnologyWuhan 430074China China-EU Institute for Clean and Renewable Energy Huazhong University of Science and TechnologyWuhan 430074China PROMES-CNRS Laboratory 7 rue du Four Solaire66120 Font-Romeu-Odeillo-viaFrance

The optical performance of a receiver has a great influence on the efficiency and stability of a solar thermal power *** of the literature focuses on the optical performance of receivers with different geometric shapes,but less research is conducted on the effects of critical geometric *** this paper,the commercial software TracePro was used to investigate the effects of some factors on a conical cavity receiver,such as the conical angle,the number of loops of the helical tube,and the distance between the focal point of the collector and the *** factors affect the optical efficiency,the maximum heat flux density,and the light distribution in the conical *** optical performance of the conical receiver was studied and analyzed using the Monte Carlo ray tracing *** make a reliable simulation,the helical tube was attached to the inner wall of the cavity in the proposed *** results showed that the amount of light rays reaching the helical tube increases with the increasing of the conical angle,while the optical efficiency decreases and the maximum heat flux density *** increase in the number of loops contributed to an increase in the optical efficiency and a uniform light *** conical cavity receiver had an optimal optical performance when the focal point of the collector was near the aperture.

关键词： parabolic collector conical cavity receiver critical geometric parameters optical performance

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