A Numerical Simulation of Indirect Air Cooling with Three-towers-in-one
The 600 MW indirect air cooling device as an example,the problems of three-towers-in-one about pollutant diffusion,environmental impact,structural optimization were analyzed with numerical simulation method. Results illustrate that: due to influence of environment temperature,air cooling tower heat transfer is highest in winter,lowest in summer;with increase of wind speed,heat transfer of the windward surface enhance,heat transfer of side surface and leeward surface decrease; compared with chimney,using air cooling tower remove flue-gas makes pollutant diffusion wider and less environment influence; gas outlet of desulfurization tower more high and less,flue-gas spread more widely; the external windbreak wall can reduce the suppress of wind on the side of the tower,the internal windbreak wall can weaken the rotation of hot air in tower.