What Are The Advantages Of Hyperbolic Natural-draft Cooling Towers?

What Are The Advantages Of Hyperbolic Natural-draft Cooling Towers?
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Answer :

 Since no fans are used power cost and auxiliary equipments cost is reduced.
 Hyperbolic tower chimney creates its own draft even when there is no wind.
 Ground fogging and warm air re-circulation are avoided in hyperbolic towers.
 The structure is more or less self-supported.
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