出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：This work aims to determine the optimal configuration for a low-cost flat solar collector, which is easy to build and maintain and can be used for drying fruit by family farmers. For this purpose, the factorial experimental design methodology was applied due to its reliability and for evaluating at the same time the effect of several factors or variables, from a minimum number of experiments. The variables to be studied were determined, following with the carrying out of the necessary set of experiments and with the analysis of statistically significant variables to determine the optimal configuration of the solar collector. The experimental results determined as the optimized configuration: Transparent alveolar polycarbonate roofing and use of a matte black painted zinc tile as a thermal capacitor. The calculation of the equipment's thermal efficiency was using its definition as the ratio between the power delivered by the system and the power available to it, and the result obtained for the optimal configuration was 42.00%. The factorial experimental design developed has an accuracy of 96.10% and proved to be significant and predictive.
