Principle of Operation
Warm water from the heat source is pumped to the water distribution system at the top of the tower. The water
is distributed over the wet deck fill by means of large orifice nozzles. Simultaneously, air is drawn in through
the air inlet louvers at the base of the tower and travels upward through the wet deck fill opposite the water flow.
A small portion of the water is evaporated which removes the heat from the remaining water. The warm moist air is
drawn to the top of the cooling tower by the fan and discharged to the atmosphere. The cooled water drains to the basin
at the bottom of the tower and is returned to the heat source.
The vertical air discharge of the Ultra-SST design and the distance between the discharge air and fresh air intakes,
reduces the chance of air recirculation, since the warm humid air is directed up and away from the unit. For detailed
layout information please consult EVAPCO’s Equipment Layout Guidelines Bulletin 311 which features reduced clearance dimensions
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The Ultra-SST Cooling Tower product line is a
type 316/304 stainless steel Advanced Technology design which utilizes induced draft, counterflow technology–the most efficient in the
industry and the best design for operation in a freezing climate. The counterflow design provides the Ultra-SST Cooling Tower with
inherently better operational and maintenance features.