Abstract:The flue gas of wet desulfurization coal-fired power plant contains a large amount of water vapor,which forms a white smoke plume with visual pollution.Installing a flue gas condenser after the desulfurization tower can eliminate white smoke plumes,recover a large amount of water resources,and further reduce the content of pollutants in the flue gas.In view of the cumbersomeness of the factor j in the mass transfer equation of the Colburn-Hougen method that needs to be obtained by looking up the table,based on Fick's law and the heat and mass transfer analogy law,a mass transfer coefficient Kv is derived.Using the obtained Kv,the flue gas condenser was designed by the section by section calculation method,and the experimental verification was carried out.The results showed that the design calculation results are very close to the experimental results.The Kv can be used to calculate the condensation rate of water vapor and the section by section calculation method can be used to design flue gas condenser.