Clouds and their effects on solar radiation in São Paulo

Abstract

Queria agradecer primeiramente aos meus pais por me incentivar e motivar no mundo da meteorologia. Ao sistema de educação de Cuba (público e para todos) por contribuir com minha formação como meteorologista. Agradecimento especial à minha estimada orientadora Dra Marcia Akemi Yamasoe, por todo apoio e profissionalismo durante a pesquisa, em ensinar novos conhecimentos que enriqueceram esta pesquisa e minha formação. A CAPES pela concessão da bolsa de mestrado. Aos doutores Eduardo Landulfo, Fabio Lopes por fornecer os dados do Lidar e sky câmera.

A Long-Term Analysis of the Architecture and Operation of Water Film Cooling System for Commercial PV Modules

“…This condition occurs because the month of September, mainly the first fortnight, in this region presents high insolation rate, small cloud cover, low humidity, low precipitation, and average daily temperatures above 23 • C [73]. In addition, the average amount of clouds at the site decreased from sunrise until around 11 a.m., subsequently presenting a monotonic increase until sunset, when it reaches the highest cloud cover [74], positively affecting the incidence of solar radiation in the PV modules. Regarding the weather conditions, the period is between 6:00 a.m. and 6:00 p.m. On these days, the variation of the solar radiation on the tilted surface of the modules [W/m 2 ] and the ambient temperature [ • C] varied, with the highest levels for both parameters happening at noon (see Figure 3 While high levels of solar radiations are beneficial for electric power production by the PV modules, these environmental conditions increase the operating temperature of the PV modules.…”