Research on the arrangement of thermoreduction of spray layer in elevated temperature turbulent flue

The numerical simulation is about the arrangement of spray layer arrangement in front of the entrance of absorption tower using the method CFD and Discrete Phase Model (DPM). The conclusions are as follows: the droplets is difficult to penetrate the flue gas when the direction of spray layer is perpendicular to the gas flow influenced by velocity of flue gas. It is helpful to reduce the temperature of the flue gas and to avoid the blockage of nozzle if the direction of spray layer is parallel to the gas flow and downstream. The mass flow of cooling water increases more than 60% when the droplets diameter increase 50 μm. The nozzle arrangement in spray layer is related to the velocity of the flue gas. More nozzles should be installed at the place where the flue gas is rapider.