Different types of installations Evaporative cooler

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1 different types of installations

1.1 typical installations
1.2 evaporative (wet) cooling towers
1.3 misting systems

1.3.1 misting fans







different types of installations
typical installations

typically, residential , industrial evaporative coolers use direct evaporation, , can described enclosed metal or plastic box vented sides. air moved centrifugal fan or blower, (usually driven electric motor pulleys known sheaves in hvac terminology, or direct-driven axial fan), , water pump used wet evaporative cooling pads. cooling units can mounted on roof (down draft, or downflow), or exterior walls or windows (side draft, or horizontal flow) of buildings. cool, fan draws ambient air through vents on unit s sides , through damp pads. heat in air evaporates water pads re-dampened continue cooling process. cooled, moist air delivered building via vent in roof or wall.


because cooling air originates outside building, 1 or more large vents must exist allow air move inside outside. air should allowed pass once through system, or cooling effect decrease. due air reaching saturation point. 15 or air changes per hour (achs) occur in spaces served evaporative coolers, relatively high rate of air exchange.


evaporative (wet) cooling towers


large hyperboloid cooling towers made of structural steel power plant in kharkov (ukraine)


cooling towers structures cooling water or other heat transfer media near-ambient wet-bulb temperature. wet cooling towers operate on evaporative cooling principle, optimized cool water rather air. cooling towers can found on large buildings or on industrial sites. transfer heat environment chillers, industrial processes, or rankine power cycle, example.


misting systems

mist spraying system water pump beneath


misting systems work forcing water via high pressure pump , tubing through brass , stainless steel mist nozzle has orifice of 5 micrometres, thereby producing micro-fine mist. water droplets create mist small instantly flash evaporate. flash evaporation can reduce surrounding air temperature as 35 °f (20 °c) in seconds. patio systems, ideal mount mist line approximately 8 10 feet (2.4 3.0 m) above ground optimum cooling. misting used applications such flowerbeds, pets, livestock, kennels, insect control, odor control, zoos, veterinary clinics, cooling of produce, , greenhouses.


misting fans

a misting fan similar humidifier. fan blows fine mist of water air. if air not humid, water evaporates, absorbing heat air, allowing misting fan work air cooler. misting fan may used outdoors, in dry climate. may used indoors.


small portable battery-powered misting fans, consisting of electric fan , hand-operated water spray pump, sold novelty items. effectiveness in everyday use unclear.








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