Abstract: By using the technique of computational fluid dynamics (CFD), the numerical computations of three dimensional heat transfer and mass transfer in the cooling tower were carried out. Based on these, the reformation for optimized matching of the cooling air and the circulating water inside the cooling tower was accomplished; the excellent water distribution and air distribution were realized, the heat exchange efficiency was increased, the cooling effect had become higher than the designed value, and the outlet water temperature was greatly reduced, the gross coal consumption rate was decreased, and the unit operation economical efficiency was raised.

Key words: cooling tower, numeric computation, packing, shower head, reformation