ENERGY EFFICIENCY OF AIR RECOVERY SYSTEMS

Abstract

In general, the main content of this article is energy saving and cost reduction .Maintenance of buildings associated with outdated construction technologies. As a comprehensive solution, the introduction of an air recovery system as an energy-efficient technology is proposed. Heat recovery or reverse heat generation is a heat exchange process in which heat is taken from the exhaust air being drawn out and transferred to the fresh injected air, which is heated. The process takes place in a recuperative heat exchanger in such a way that the ejected and fresh air are completely separated from each other so that they do not mix.

In cooled rooms, recuperative heat exchangers can also be used in the reverse way, that is, for cold recovery. In this case, the cold from the exhaust air is transferred to the supplied air.

An important characteristic of recuperators is the recovery efficiency coefficient.The heat recovery efficiency coefficient expresses the ratio between the maximum possible heat received and the heat actually received. Theoretically, the efficiency can vary from 30 to 90%. This characteristic depends on the cost, manufacturer and type of recuperator.