文章基本信息

标题：Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique
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作者：Domingos Mário Zeca Fernando ; Marcus Vinicius Contes Cala ; Francisco José Noris 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2022
卷号：11
期号：6
页码：1-8
DOI：10.33448/rsd-v11i6.28887
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：The present paper makes an analysis of the frequency of sky conditions in the city of Maputo/Mozambique based on the clearness index (Kt). From the determination of extraterrestrial solar radiation and measured data of four years of global daily radiation, Kt was calculated. Different sky conditions were classified according to the Escobedo criterion, which dispenses the data of direct and / or diffuse radiation in its classification. The city of Maputo, during the year, is observed more days with conditions of clear sky, in average of 120 days. And for cloudy sky conditions, the city of Maputo presents the least number of days, with an average of 48 days. The frequency of days for partially cloudy sky and partially clear sky conditions is 85 and 112 days respectively. The information generated in this paper can be used in future studies to project solar systems for thermal use or direct conversion of solar radiation into electricity.
关键词：Cloudiness;City of Maputo;Clearness Index.