Navegando por Autor "Teixeira, Carlos Alberto"

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Avaliação de parâmetros de trabalho de um trator new holland modelo TL75E -4X2 TDA
(2019) Santos, Atos Siqueira; Teixeira, Carlos Alberto; http://lattes.cnpq.br/8235740394746329; http://lattes.cnpq.br/5402074701580023
Large areas occupied by crops were and still are favored by the mechanization of the crops, being the speed of work of the machines one of the most important factors in the effective working capacity of the mechanized assembly, which expresses the time, towork a certain area. The velocities measured in the field, collected according to the time the tractor took to cover a thirty-meter path, delimited by beacons, were compared with speeds provided by the manufacturer in the decal attached to the tractor paralama used in this model work New Holland TL75E, these speed comparisons were by different combinations of range, gear and engine speed, speeds measured in the field were found to be predominantly lower than those provided by the manufacturer in a range of8 to 23% less in the 32 combinations of range, gear and rotation. The manufacturer states that at approximately 2200 rpm in the engine rotation, the output on the shaft of the power take-off (TDP) is 540 rpm, however, through measurements with the use of tachometer it was found that in this engine rotation the output in the TDP was an average of less 13 rpm than that reported by the manufacturer for this engine speed. Losses are related to periodic and preventive maintenance of the tractor as well as the natural wear and tear of the engine's internal components, such losses can adversely affect the yields of agricultural operations.
Como economizar energia elétrica em casa e no trabalho
(Universidade Federal Rural de Pernambuco(UAST); Unidade Acadêmica de Serra Talhada., 2011) Teixeira, Carlos Alberto
O crescimento econômico brasileiro está desenvolvendo o Brasil e com isso a utilização de energia se torna cada vez maior, com isso a racionalização de seu uso de se faz necessária. No Brasil a utilização de energia se concentra nos setores industrial, comercial, residencial e rural, sendo a força motriz, iluminação refrigeração, compressão de ar, as cargas que mais consomem energia elétrica. Serão ministradas oficinas sobre 'Como economizar energia em casa e no trabalho' para Órgão públicos e privados da cidade de Serra Talhada, com o objetivo de conscientizar as pessoas que é possível racionalizar o uso de energia com medidas técnico-educativas e também com a aquisição de equipamentos novos com selo PROCEL. Serão convidados vários órgãos para participarem de forma voluntária nesta oficina, que será ministrada várias vezes durante o ano. Espera-se com isso atender as principais demandas de economia de energia em escolas de ensino fundamental, médio e superior de Serra Talhada; Representantes das agências bancárias, Ministério Público, Fórum de Justiça, DETRAN, IPA, ADAGRO, Clube dos dirigentes lojista - CDL, COMPESA, a população em geral, prefeitura de Serra Talhada, entre outros. A expectativa é que cada órgão desse envie um ou mais representantes para o treinamento.
Proposta de dessalinizador solar híbrido
(2019-12-16) Aquino, Eduardo Fonsêca de; Teixeira, Carlos Alberto; http://lattes.cnpq.br/8235740394746329; http://lattes.cnpq.br/7478355003653071
The Northeast region of Brazil has very distinct edaphoclimatic characteristics when compared to other regions of the country, because it has dry climate and the soil is characterized by being shallow and sometimes with large amount of salts. Because of these characteristics, water from precipitation when infiltrates the soil carries the salts present in the superficial layers, increasing the concentration of salts in water that percolates to levels harmful to human and animal health. The wells in the region have saline water because of those characteristics, it is therefore necessary to adopt practices that can improve water quality, removing impurities, microorganisms, and salts present in the water. The solar desalination is a simple and easily replicated technology and studies have shown that it improves the quality of saline waters with impurities and / or microorganisms. This technology when used in conjunction with the solar concentrator, makes a gain in desalination system yield, because of the concentrator reflect solar radiation and concentrates the sun's rays on the desalination base, thus increasing the production of desalinated water. The Hybrid solar concentrator is also an easily replicable technology and can be built even with recyclable materials like mirrors and satellite dish, thus being an accessible and simple technology. In this work was developed and construction a 1.7 m² solar desalination area and a 1.7 m diameter solar concentrator and were installed in the rural area in the Poldrinhos settlement in the municipality of Serra Talhada / Pernambuco. Used mirrosand satellite dish and among other materials, resulting in an expense of R$ 1149.24. The use of hybrid solar desalination will increase the production of desalinated water compared to the flat solar desalination.