Although their temperatures are above zero, cooling towers and heat recovery systems are an essential element for the energy balance of all cooling and refrigeration systems. A fundamental law of thermodynamics is that energy cannot be destroyed, so the cooling of one area by reducing its temperature results in an increase of energy (temperature) in the chilling unit. This energy needs to be released to the atmosphere or it can be “recovered” to be used for hot water or under-floor heating. Logically these cooling towers are located outdoors.
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