EXPERIMENTS WITH CAVICAL IN THE SOLAR FURNACE OF THE PSA
This paper presents the experimental results on the thermal characterization of a special conical cavity calorimeter named CAVICAL. The experiments were done on the Solar Furnace (SF) at Almeria Solar Platform in Spain (PSA). The CAVICAL was previously used to measure the thermal power of a point focus solar concentration system named DEFRAC and developed at the Center of Energy Research of the National University of Mexico. The detailed theoretical heat transfer study on that instrument was done using the FLUENT code. The heat transfer mechanisms that were taken into account in the theoretical analysis were the radiative energy absorbed by the inner wall cavity, the energy transfer from the wall cavity to the air by natural convection, the energy transferred by conduction through the metallic wall of the calorimeter and by forced convection through the fluid in the cooling system. The calorimetric information allowed determining the thermal power that the concentrator is able to capture. Now, the purposes of the experiments, which results are presented in this paper, were to validate the theoretical model and to determine the relationship between the walls temperature distribution in the calorimeter cavity and the radiative incident flux on the conical calorimeter. This study is related to better determine of the incident solar radiative flux in solar receptors of solar concentration power plant. This allows the better determination of the system efficiency.
C.A.Estrada C.Pérez-Rábago J.Ballestrin M.Rodríguez
Universidad Nacional Autónoma de México Centro de Investigación en Energía AP 34, CP 62580 Temixco, CIEMAT - PSA Aptdo.22, E-04200 Tabernas, Almería, Spain
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）