![]() ![]() As such, certain types of buildings are more likely to have cooling towers. Cooling towers are inherently more efficient than air conditioners. Most common uses include air conditioning and removing heat from commercial and industrial processes. Step 2: Consider Characteristics of Buildings Likely to Have Cooling TowersĬooling towers are heat rejection devices that transfer heat to the atmosphere through evaporation. Investigators with experience identifying cooling towers may notice cooling towers make a distinct “hum” or a “cascading water” sound.Usually, water lines are smaller and rounded.Water lines are typically made of cast metal or plastic, while air ducts are made of sheet metal.Water lines run between the cooling tower and building, while AC units have air ducts or small refrigerant lines.When in motion, fan blades in AC units appear as a “blur” while those in cooling towers do not.) Spin slower (This helps distinguish cooling towers in aerial photographs.Have more spacing between the fan blades.Compared to AC units, fans in cooling towers tend to.Oblique (tilted) aerial imagery or street view may aid in identifying side-mounted fans. Note: Side mounted fans are difficult, if not impossible, to see from aerial photographs. Fans are usually located on the top or side of cooling towers.Cooling towers are typically located on the roof or near the building.Buildings without a readily visible air cooling system warrant further investigation. Most buildings have some type of air cooling system, either cooling towers or AC units.See images of cooling towers in a variety of shapes and sizes. ![]()
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