Technical and economic analysis of solar collectors

Nowadays, most of governments trend towards reducing the independency of fossil fuel sources of energy and replacement them, with renewables one. In the solar-energy industry great emphasis has been placed on the development of active solar energy systems which involve the integration of several subsystems: solar energy collectors, heat-storage containers, heat exchangers, fluid transport and distribution systems, and control systems. Solar collectors systems are very developed instead of commercial water heater. It’s obvious using solar energy will be more environmental friendly. some parts of universe has sufficient radiation received to the earth surface and could be supply the entire world energy, for example, middle east region. In this paper we have announced the comparison of two kinds of heat water and their environmental factor, despite of life cycle of producing of solar collectors and commercial heaters. The results show that, considering the number of sunny days in Iran, the use of the solar collector system is more suitable in spite of the high cost of investing economically and environmentally.

کلیدواژه ها:

solar energy ، CO2 emission ، solar collector