Share
An evaporative cooler (also evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling uses the fact that water will absorb a relatively large amount of heat in order to evaporate (that is, it has a large enthalpy of vaporization). The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants. The cooling potential for evaporative cooling is dependent on the wet-bulb depression, the difference between dry-bulb temperature and wet-bulb temperature (see relative humidity). In arid climates, evaporative cooling can reduce energy consumption and total equipment for conditioning as an alternative to compressor-based cooling.
Related Searches

If you like air cooler, try these related items.

Sponsored Links
Banner 1
Portable Rechargeable Fan Mini Handy Fan Pocket Size Air Cooler USB w/ Battery
Portable Rechargeable Fan Mini Handy Fan Pocket Size Air Cooler USB w/ Battery
Price:
7.95 USD
Ends:
Feb 13, 01:15 am
USB Portable Hanging Neck Fan Cooling Air Cooler Little Electric Air Conditioner
USB Portable Hanging Neck Fan Cooling Air Cooler Little Electric Air Conditioner
Price:
21.98 USD
Ends:
Feb 16, 06:28 am
Mini Air Conditioner Humidifier Bedroom Artic Cooler USB Fan Desktop
Mini Air Conditioner Humidifier Bedroom Artic Cooler USB Fan Desktop
Price:
16.99 USD
Ends:
Feb 13, 01:40 am
Portable Rechargeable Fan Mini Handy Fan Pocket Size Air Cooler USB w/ Battery
Portable Rechargeable Fan Mini Handy Fan Pocket Size Air Cooler USB w/ Battery
Price:
8.39 USD
Ends:
Feb 12, 05:46 pm
Portable Rechargeable LED Fan air Cooler Mini Operated Desk USB - 18650 Battery
Portable Rechargeable LED Fan air Cooler Mini Operated Desk USB - 18650 Battery
Price:
8.99 USD
Ends:
Feb 02, 01:40 am
USB Portable Hanging Neck Fan Cooling Air Cooler Little Electric Air Conditioner
USB Portable Hanging Neck Fan Cooling Air Cooler Little Electric Air Conditioner
Price:
16.91 USD
Ends:
Feb 20, 02:39 pm
HYANKA Personal Air Conditioner,Portable Desktop Air Cooler Fan
HYANKA Personal Air Conditioner,Portable Desktop Air Cooler Fan
Price:
26.99 USD
Ends:
Feb 20, 04:45 pm
 Ontel Arctic Air Ultra Evaporative Portable Air Conditioner Cooler LED Light tv
Ontel Arctic Air Ultra Evaporative Portable Air Conditioner Cooler LED Light tv
Price:
35.90 USD
Ends:
Feb 09, 08:28 pm
USB Mini Desk Fan Portable Small Cooling Air Cooler No Battery
USB Mini Desk Fan Portable Small Cooling Air Cooler No Battery
Price:
6.99 USD
Ends:
Feb 14, 03:19 pm
7 Bids
Arctic Air-Ultra Evaporative Cooler Ontel Arctic Air Portable Fan -White
Arctic Air-Ultra Evaporative Cooler Ontel Arctic Air Portable Fan -White
Price:
6.50 USD
Ends:
Jan 31, 08:16 pm
Portable Mini Personal Air Conditioner Desktop Fan Space Cooler USB Rechargeable
Portable Mini Personal Air Conditioner Desktop Fan Space Cooler USB Rechargeable
Price:
20.51 USD
Ends:
Feb 13, 01:50 am
Desk Portable Air Conditioner Cooler  Mini 3 Modes & 7 Colors Light Air Purifier
Desk Portable Air Conditioner Cooler Mini 3 Modes & 7 Colors Light Air Purifier
Price:
18.98 USD
Ends:
Feb 10, 02:12 am
Portable Rechargeable Air Cooler LED Light USB Mini Desk Fan NO BATTERY
Portable Rechargeable Air Cooler LED Light USB Mini Desk Fan NO BATTERY
Price:
6.99 USD
Ends:
Jan 25, 08:26 am
Portable USB Rechargeable LED Fan Air Cooler Mini Operated Desk w/ 18650 Battery
Portable USB Rechargeable LED Fan Air Cooler Mini Operated Desk w/ 18650 Battery
Price:
5.99 USD
Ends:
Jan 31, 04:35 pm
4
4" USB Mini Desk Fan Small Quiet Air Cooler USB Power Portable Office Table Fan
Price:
12.99 USD
Ends:
Feb 23, 02:20 am
Ontel Arctic Air Ultra Evaporative Portable Air Conditioner Cooler LED Light tv
Ontel Arctic Air Ultra Evaporative Portable Air Conditioner Cooler LED Light tv
Price:
39.95 USD
Ends:
Jan 26, 11:45 pm
Portable Evaporative Air Cooler Fan & Humidifier w/ Remote Control Wheels
Portable Evaporative Air Cooler Fan & Humidifier w/ Remote Control Wheels
Price:
98.49 USD
Ends:
Feb 14, 06:50 pm
Caynel USB Mini Portable Air Conditioner USB Personal Cooler Fan
Caynel USB Mini Portable Air Conditioner USB Personal Cooler Fan
Price:
28.80 USD
Ends:
Feb 19, 01:25 am
Portable Summer Space Cooling Fan Mini Air Conditioner Cooler Humidifier US
Portable Summer Space Cooling Fan Mini Air Conditioner Cooler Humidifier US
Price:
26.95 USD
Ends:
Feb 20, 09:07 am
Misty Mate Cool Blast Personal Portable Air Cooler Mister Pump with Belt NEW
Misty Mate Cool Blast Personal Portable Air Cooler Mister Pump with Belt NEW
Price:
35.00 USD
Ends:
Feb 25, 04:02 am
Banner 2