The feasibility of the use of eletric energy overnight rate, with discount, was determined by simulations in differents evapotranspirative regions in Brazil (4, 6, 8mm/day). These simulations showed the most economic ...

In this work it was utilized the concepts of fractal dimension and the correspondent fractal analysis to decrease the mix time for minerals utilized in animal food industry, in a more appropriate combination of the ...

In the last years, with the development of the Country, there occurred a great increase in the demand of electrical energy in Brazil, and in order to avoid shortage and even its lack, it becomes clear the needs for ...

Presently with rare exceptions, the energetic analysis are performed based on the First Principle of Thermodynamics, that considers the energy balance. On the other hand, the energetic analysis based on the Second Principle ...

An air to air heat pump computer program was modified to simulate a heat pump system for residential water heating, under steady state conditions. For that purpose a computer model of a counter flow concentric-tube ...

This work studied a protection system based upon a low voltage surge arrester and a cascade protection for electric equipments that are very important at an agricultural area and which are frequently damaged by atmospheric ...

This paper show the basics directives of “Luz da Terra” rural electrification program will be introduce at the Government of the State of São Paulo, giving special importance for technical assistance to the farmers and the ...

This work aimed to obtain information seeking the characterization of the anaerobic digestion of three poultry litter kinds (elephant grass, elephant grass + wood shavings and wood shavings) obtained after one broiler ...

The purpose of this work was to develop a mathematical method to estimate the pump performance curves by analytical method. The interpolated expressions were calculated the pump performance curves pressure, efficiency ...

This work presents a cost evaluation method for hydroelectric power plants with suitable technology for small isolated communities. The research was done for a standard typical project with installed capacities varying ...