Abstract
Recently, environmental problems have become more acute. In 1980, the International Union for the Conservation of Nature (IUCN) prepared the World Conservation Strategy. This document interpreted the term “sustainable development” as an inseparable link between social development and nature conservation. And already in 1992, after the United Nations Conference on Environment and Development, the concept of sustainable development gained a leading status. The conference materials determined that sustainable development is a development of a society that meets the needs of today without compromising the ability of future generations to meet their own needs. Therefore, being aware of the need for energy conservation, there is increasing emphasis on the use of solar energy throughout the world to generate electricity and heat.
Highlights
The potential of solar energy in Ukraine is sufficiently high for widerspread use both heat-and-power engineering and photovoltaic systems in almost all regions
In some solar air heaters, fans are attached to the absorber, which provide air passage and improve heat transfer
Taking into account the most predictable movement of the coolant inside collectors with the movement of the air through air chambers, we shall undertake a study on the efficiency of chamber forms to outline the optimized and the most effective alternative
Summary
The potential of solar energy in Ukraine is sufficiently high for widerspread use both heat-and-power engineering and photovoltaic systems in almost all regions. In some solar air heaters, fans are attached to the absorber, which provide air passage and improve heat transfer The disadvantage of this construction is that it consumes energy to operate the fans, increasing the cost of the system operating. The air is directed to the gap between the absorber plate and the insulated rear wall of the collector: avoiding heat loss through transparent surfaces. Solar air collectors are simple devices, have a numerous of options of constructive execution, warming, a material and a covering of an absorber, a translucent covering, and means of ensuring creation of turbulent air streams inside. More significant deviations can be compensated by a small increase in the surface area of the collector
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