The fan draws dry hot air into the machine and across the cooler pads these thick pads absorb water from the reservoir and.
Evaporative cooling system sketch.
Evaporative coolers cost about one half as much to install as central air conditioners and use about one quarter as.
An evaporative cooling system takes basic evaporation and automates it to efficiently lower the temperature of the air in your home.
When operating an evaporative cooler windows are opened part way to allow warm indoor air to escape as it is replaced by cooled air.
Evaporative cooling uses the fact that water will absorb a relatively large amount of heat in order to evaporate.
Evaporative cooling differs from typical air conditioning systems which use vapor compression or absorption refrigeration cycles.
The basis of any evaporative cooling system is the evaporation of water into an airstream.
Pad and fan systems are part of a greenhouse s mechanical ventilation system.
Typical fan and pad greenhouse arrangement.
The coolest area of the greenhouse is adjacent to the evaporative cooling pads.
Unlike central air conditioning systems that recirculate the same air evaporative coolers provide a steady stream of fresh air into the house.
Two evaporative cooling systems are commonly used in greenhouses.
Note that swamp coolers can be considered stand alone evaporative cooling systems but otherwise operate similarly as pad and fan systems.
They produce cool and humid air and are.
An evaporative cooler also swamp cooler swamp box desert cooler and wet air cooler is a device that cools air through the evaporation of water.
Evaporative cooling systems are characterised by low energy use compared with refrigeration cooling.
The most common way of accomplishing evaporative cooling in a greenhouse is with a fan and pad system figure 1.