Abstract

Temperature of flue gas exhausted from industrial fire-tube boilers is still rather high, infact. Recovery of this waste heat for heating the boiler feed water leads to increase boiler efficiency, thus reduces fuel consumption and improves the environment. Based on heat transfer theory this research worked out the program for calculation of the fintube economizer which could be installed at the end of the boiler. The research also carried out economical evaluations for the application of economizers.