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Articles by Elena POSTELNICU
Total Records ( 2 ) for Elena POSTELNICU
  Mirela MILITARU , Elena POSTELNICU , Mihai CHITOIU and Valentin VLTDUT
  Solar energy represents one of the future energy sources with a high potential, used as an alternative to conventional methods, especially during summer. The advantages of using solar energy are multiple, this type of energy being virtually endless and free, and its use has no negative effects on the environment, being regarded as a clean energy source. Solar energy has multiple applications in agriculture, one of its benefits being that it is used for dryers as an alternative energy source, especially in regions with a high solar potential. In this paper different types of fruits and vegetable dryers, nationally and abroad are presented, as well as results obtained from different methods of solar dryers.
  Elena POSTELNICU , Valentin VLADUT , Cristian SORICA and Mirela MILITARU
  Solar radiation represents an inexhaustible and unexploited energy resource in Romania and internationally. At present time, in which the energy issue grows in importance, and environment protection became a society demand, efforts in unconventional energy technologies development (solar, wind, geothermal, etc.). Many sectors rely on sun technology benefit, and so can agriculture. The productivity of these sectors depends on the amount of energy that they gather from the sun. Generally there are two types of solar systems: the ones that convert solar energy into electricity and the others that convert solar energy into heat. Both types have many applications in agriculture, helping the productivity. Photovoltaic panels are very economy efficient regarding electricity distribution for long distance locations, like agricultural exploitations, farms, orchards, and other agricultural operations. The use of solar panels is indicated for agriculture due to easy maintenance. Farmers don’t use only energy from the sun, its heat being also very important in agriculture. Drying cereal and other products through sun exposure is widely used. In this paper solutions of solar radiation use nationally and internationally are presented, different methods adapted for agriculture, as well as results from researches in this field.
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