Flue gas-water direct-contact heat transfer performances

Studies the movement characteristics of droplets and heat and mass transfer performances of flue gas and water. Establishes a flue gas-water direct-contact heat transfer differential equation to obtain the temperature distribution of flue gas and water. Analyses the main factors influencing heat transfer performance. The results show that droplet size, water-gas ratio and height of heat exchanger are the main influencing factors. Tests a direct-contact heat exchanger for a flue-gas waste heat recovery project of a gas-fired boiler room, and verifies the results of theoretical calculation.