With the increasing of the power demand in many production sectors, the searching for renewable sources of energy, which won’t cause environmental impacts, is becoming more and more important. Brazil is a country that ...

In view of the increase in the price of the petroleum, the researches searching of alternative fuels are being intensified more and more. Brazil owns biogas great availability derived of the anaerobic digestion of in ...

The control of thin-layer drying process is based on the drying curve of the product, obtained by periodically weighing of the sample. The most frequently way of doing this control is to take the sample out of the dryer ...

The residues generated in animal production represent a significant fraction of the biomass originating from productive systems and its recicly in search of the largest economical and environmental ...

The new millennium paradigm of self-sustainable agriculture comprises the optimization of the production process. Considering that situation, the Agricultural Mechanization Lab (Lama/UEPG) developed a prototype solar ...

The necessity of the energy matrix diversification has become an alternative due to the shortage of resources for large-scale projects. A further reason on recent events that have changed the world geopolitical scene, ...

The photosinthetically active solar radiation (PAR – Photosynthetically Active Radiation) performs an important function for the plants development, because it is responsible by chemical process that excites the chlorophyll ...

In previous works with 1-wireTM technology only temperature sensors were used on data transmission network with high performance and low cost. In this work it was used the 1-wireTM technology from Dallas Semiconductor ...

The energy obtained from the sun – both thermal and electric – is still low in efficiency; due to it, it is necessary to analyse the solarimetric parameters to make it possible to define the correct size of the equipment, ...

Biogas, depending on the use has that to have its characteristics improved physicist- chemistries it is of great importance, such as: the removal of the carbon dioxide (CO2) and of the acid sulfuric (H2S). This ...