The natural draft dry cooling tower (NDDCT) has been increasingly used in power generation for its merits of excellent water-saving, high energy saving, simple maintenance and long life service. To study the performance of a newly installed 660 MW NDDCT under crosswind condition, a model with scale of 1:200 was built according to the scaling law of geometric similarity. The experiments were set up in self-similar region with high Reynolds to meet momentum similarity, while meeting the scaling law of Froude and Euler numbers. A first order law radiator resistance model is also proposed and verified by a systematic test. The exponent law profile of wind velocity above the ground was built and verified by experimental data. On the ground of a constant heating rate bases, the flow field inside the NDDCT and the ventilation rate were investigated at the crosswind range of 0–20 m/s.

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nddct power generation froude euler natural draft dry cooling tower exponent law profile of wind velocity above reynolds flow field order law radiator resistance model ground scaling law of geometric similarity momentum ventilation rate

Junfu Lu,Weiliang Wang, Yuzhao Wang, Guanming Lin, Weidou Ni, Hai Zhang, Guangxi Yue,.Fresh breeze cuts down one-third ventilation rate of a natural draft dry cooling tower: A hot state modelling. 131 (0),.

Junfu Lu, et al."Fresh breeze cuts down one-third ventilation rate of a natural draft dry cooling tower: A hot state modelling" 131

Junfu Lu,Weiliang Wang, Yuzhao Wang, Guanming Lin, Weidou Ni, Hai Zhang, Guangxi Yue,"Fresh breeze cuts down one-third ventilation rate of a natural draft dry cooling tower: A hot state modelling"