USAGE OF CONDENSATION HEAT-RECOVERY EXCHANGERS IN GAS-FIRED BOILERS

It is proposed to increase the efficiency of fuel use in gas-fired boiler plants by using the condensation heat-recovery exchangers designed for heating raw cold water supplied to chemical water-purification system. A schematic circuit of a heat-recovery plant with a heat-recovery exchanger is presented and the results of its full-scale tests are presented. It is shown that when applying this plant, an increase in the efficiency the use heat of fuel of boiler CUHF by 4-5% was achieved.