Abstract: Solar energy represents the amount of solar radiation per unit time on unit area. Solar energy is used to obtain thermal energy through solar, and electrical energy through exist for solar energy: passive and active. The utilization of solar energy is essential for the development of human civilization.
Keywords: solar drying, solars tills, photovoltaict echnology
Recieved: 26 August 2012 Accepted: 5 February 2013 UDC: 638.124.8