Crossflow Cooling Tower

Crossflow is a design in which the air flow is directed perpendicular to the water flow (see diagram below). Air flow enters one or more vertical faces of the cooling tower to meet the fill material. Water flows (perpendicular to the air) through the fill by gravity. The air continues through the fill and thus past the water flow into an open plenum volume. Lastly, a fan forces the air out into the atmosphere. A distribution or hot water basin consisting of a deep pan with holes or nozzles in it's bottom is located near the top of a crosflow tower . Gravity distributes the water through the nozzles uniformly across the fill material.

Advantages of the crossflow design:
  • Gravity water distribution allows smaller pumps and maintenance while in use.
  • Non-pressurized spray simplifies variable flow.
  • Typically lower initial and long-term cost, mostly due to pump requirements.

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