HVAC Water Systems: Waterside Free Cooling

03/27/2015

Free cooling utilizes the evaporative cooling capacity of a cooling tower to indirectly produce chilled water for use in medium temperature loops, such as process cooling loops and sensible cooling loops. Free cooling is best suited for climates that have wetbulb temperatures lower than 55°F for 3,000 or more hours per year. It is most effectively applied to serve process and/or sensible cooling loops that between 50°F–70°F chilled water.

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