Experimental study on performance of a modified small spacing"V" wave water drenching filler with assembling height of 1mand plate spacing of 22mm was conducted.The least square method was applied to put forward the thermal performance and resistance characteristic equations.Moreover

performance of the above filter and the conventional water drenching filler with plate spacing of 30mm was compared.It indicated that

within the range of common air to water ratio for countercurrent natural draft cooling towers

the thermal performance of the modified water drenching filter was enhanced by 21%to 28%

compared with the water drenching filter with conventional plate spacing

and its ventilation resistance was 83%to 99% of that of the latter one.Furthermore

the modified"V" wave water drenching filter was applied in a natural draft cooling tower with spraying area of 5 000m2.Calculation showed that the water temperature at outlet of the tower was about 1℃lower than that of the tower using"V"wave water drenching filter with conventional plate spacing

the cooling effect was significantly improved.