Through experimental study on heat transfer performance of flue gas condensing heat exchanger with different new-type anticorrosive coatings,the influencing rule of surface anticorrosive coatings of heat exchanger on heat transfer performance of flue gas condensing heat exchanger is obtained.Three experimental correlations for heat transfer of flue gas condensing heat exchanger with different anticorrosive coatings are given.The condensing heat exchanger with amorphous Ni-P composite coating and organic coa...