METHOD FOR UTILIZATION OF EXHAUST AIR HEAT

摘要

A method for utilization of heat of outlet air involves pass of fresh inflow air through connected in sequence inflow channels of the group of n heat utilizers, and the outlet air û through connected in sequence outlet channels of those, with following discharge to atmosphere. Part of the flow of heated inflow air after leaving the inflow channels of the last in the group of n heat utilizers is directed to connected in sequence outlet channels of the group of m heat utilizers for preliminary heating of external air before it goes to the group of n heat utilizers, and the other part is directed to the premises. Heated fresh air after having passed the outlet channels of the group of m heat utilizers is directed to the premises as well. The controlled and calculated part of heated fresh air supplied to the group of m heat utilizers heats the inflow air, this prevents freezing of the outlet channels through which humid outlet air goes out to atmosphere from the group of n heat utilizers.