Results of long-term operation of cascade tubular air heaters at the Berezovskaya GRÉS

Experience of operation of tubular air heaters (TAH) on twelve boilers of type PK-38 for 150-MW power units of the Berezovskaya GRES (state regional power plant) in Belarus is presented. Coal-fired, gas-fired, and oil-fired operation modes with updating tubular air heaters in a cascade layout are described. Advantages of the cascade layout and conditions for reliable, efficient, and long-term service of the TAH are shown.