The data for this study are based on actual observations of global irradiation of the database provided by the National Institute of Meteorology-INMET during the period 2013 to 2015, by registered Meteorological Observation Automatic Station A101 located in the city of Manaus in Amazonas state. These data were used to determine the Clarity Index in order to classify the types of predominant sky in the Amazon municipality in the period studied, for planning purposes of photovoltaic power generation. The research also contributes to the algorithm in MATLAB to determine the distance Earth-Sun, Solar Irradiation Extraterrestrial and the Clarity Index. The results come from the analysis were obtained through Matlab and Excel software that enabled the realization of the sky classification based on the results of the Clarity Index..

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Electricity is an important factor in the everyday life of society, and every day consumption is increasing. Besides this fact, there is also the current concern with the preservation and preservation of the environment. This research aims to evaluate, through simulations using PVSOL PREMIUM 2017 software, the power generation of a photovoltaic system connected to the distribution grid. In the simulations it was admitted that the photovoltaic system will be installed in the Terra Santa of Pará with the following geographic coordinates Latitude -1º 22'47 '' and Longitude -48º 28'47 ''. In this system, 10 AXITEC AXPOWER AC-250P / 156-60S photovoltaic modules and a FRONIUS IG 3000 inverter will be used to meet an annual consumption requirement of 4041 kWh. Th is study will also allow to know the prediction of income with energy consumption, energy savings after system implementation, inverter efficiency, system performance, time of return of investment and amount of energy injected into the grid of distribution.

EFFECTS OF ENVIRONMENTAL TEMPERATURE AND WIND SPEED IN THE PERFORMANCE OF PHOTOVOLTAIC SOLAR MODULESEFECTOS DE LA TEMPERATURA AMBIENTAL Y LA VELOCIDAD DEL VIENTO EN EL DESEMPEÑO DE LOS MÓDULOS SOLARES FOTOVOLTAICOSRESUMOOs efeitos da temperatura ambiente e da velocidade dos ventos na análise de desempenho de um módulo fotovoltaico solar de silício monocristalino foram analisados em Campo Grande, MS, para o período janeiro a dezembro de 2017. O trabalho de pesquisa foi realizado monitorando a variação da eficiência do módulo em função desses parâmetros. Uma análise estatística é apresentada e o resultado indica que os valores do coeficiente de correlação são 96% e 68% para a temperatura ambiente e para velocidade dos ventos, respectivamente, considerando o nível de confiança de 95%. Os resultados mostram que existe uma forte relação linear positiva entre a eficiência do módulo e a temperatura ambiente, e uma relação linear positiva moderada com a velocidade dos ventos.Palavras-chave: Módulo Fotovoltaico; Predição de Eficiência; Condições Climáticas.ABSTRACTThe effects of ambient temperature and wind velocity on the performance analysis of a monocrystalline silicon solar photovoltaic module were analyzed in Campo Grande, MS, from January to December 2017. The research work was carried out by monitoring the efficiency variation of the module according to these parameters. A statistical analysis is presented and the result indicates that the values of the correlation coefficient are 96% and 68% for the ambient temperature and for wind speed, respectively, considering the 95% confidence level. The results show that there is a strong positive linear relationship between the modulus efficiency and the ambient temperature, and a moderate positive linear relation with the velocity of the winds.Keywords: Photovoltaic Module; Prediction of Efficiency; Climate Conditions.RESUMENLos efectos de la temperatura ambiente y de la velocidad de los vientos en el análisis de desempeño de un módulo fotovoltaico solar de silicio monocristalino fueron analizados en Campo Grande, MS, para el período enero a diciembre de 2017. El trabajo de investigación fue realizado monitoreando la variación de la eficiencia del módulo en función de estos parámetros. Se presenta un análisis estadístico y el resultado indica que los valores del coeficiente de correlación son 96% y 68% para la temperatura ambiente y para la velocidad de los vientos, respectivamente, considerando el nivel de confianza del 95%. Los resultados muestran que existe una fuerte relación lineal positiva entre la eficiencia del módulo y la temperatura ambiente, y una relación lineal positiva moderada con la velocidad de los vientos.Palabras clave: Módulo Fotovoltaico; Predicción de Eficiencia; Condiciones Climáticas.

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With the growth of the fleet of vehicles in recent years, it becomes essential to know the quality of the most used automotive lubricating oils on the market. The aim of this research was to analyze the performance of synthetic and semi-synthetic lubricants of Shell brand, synthetic lubricating oil used was 5W-40 and semi-synthetic was 10W-40, both had the same SAE viscosity of 40, On the packaging. Through experimental observations and laboratory tests used on the engine of a Gol City type 1.6 2014 Flex-type car that traveled 5,000 km with each lubricating oil. The research in question is relevant since many consumers of automotive vehicles do not have the specific knowledge about the quality of the lubricants taking into account only the price of the lubricating oil used. The research provided the knowledge of the physical properties through the kinematic viscosity test and viscosity index that were performed in a "Saybolt" viscometer, the results obtained in this step were converted to "centistokes" according to the approximate system conversion multiplication factors Of viscosity. The observation tests, water contamination in which a heating plate was used, were also carried out to verify which of the lubricating oils present the highest contamination by water.Keywords: Viscosity, Engine, Lubricating Oil, Synthetic, Semi-Synthetic.Estudo comparativo de óleos lubrificantes sintéticos e semissintético e suas capacidades de lubrificação RESUMO Com crescimento da frota de veículos nos últimos anos, torna-se primordial o conhecimento da qualidade dos óleos lubrificantes automotivos mais utilizados no mercado. Essa pesquisa tem como objetivo analisar o desempenho dos óleos lubrificantes de bases sintéticas e semissintéticas da marca Shell, óleo lubrificante sintético utilizado foi o 5W-40 e o semissintético foi o 10W-40, os dois apresentam o mesmo grau de viscosidade SAE de 40, apresentado na embalagem. Através de observações experimentais e ensaios em laboratório utilizados no motor de um automóvel tipo Gol City 1.6 2014 do tipo Flex que percorreu 5.000 km com cada óleo lubrificante. A pesquisa em questão é relevante tendo em vista que grande parte dos consumidores portadores de veículos automotivos não detém o conhecimento especifico sobre a qualidade dos lubrificantes levando em consideração somente o preço do óleo lubrificante utilizado. A pesquisa proporcionou o conhecimento das propriedades físicas através do teste de viscosidade cinemática e índice de viscosidade que foram realizados em um viscosímetro "Saybolt", os resultados obtidos nessa etapa foram convertido para "centistokes", segundo os fatores de multiplicação de conversão aproximada de sistema de viscosidade. Também foram realizados os testes de observação, contaminação por água em que foi utilizado uma chapa aquecedora, para verificar qual dos óleos lubrificante apresentam maior contaminação por água.

This research presents a case study that was carried out in a municipal school located in the East Zone of the M unicipality of M anaus. The project was developed in two classes of elementary school I for a quantitative of 80 (eighty) students of both sexes with ages between 10 and 13 years belonging to the 5th year of elementary school I aiming to propose a reflection on formal and non-formal environmental education. -formal approach to pedagogical practices regarding awareness, awareness and conservation for the development of environmental social transformation in the school context. Among the environmental education practices developed in this school are: lectures on fighting and control of fires, prevention of epidemiology and pollution of the environment . After the lectures the students expressed the learning of environmental perception through a workshop to create drawings that were exposed to the school community. These drawings and the learning with the lectures motivated the students to fight the destruction of the environment. For this, posters were prepared by the students to be used in a mobilizing walk of awareness about the conservation and preservation of the environment. In this walk were distributed seedlings to be planted next to the community located in the middle of the school.school for a quantitative of 80 (eighty) students of both sexes, aged 10 to 13 years, belonging to the 5th year Of elementary school I.