Saturday, February 4, 2012

Comparison to air conditioning

Comparison of Evaporative cooling to phase-change air conditioning:

edit Advantages

Less big-ticket to install

Estimated amount for accession is about bisected that of axial air-conditioned air conditioning.9

Less big-ticket to operate

Estimated amount of operation is 1/4 that of air-conditioned air.

Power burning is bound to the fan and baptize pump vs. compressors, pumps and blowers.

Ease of Maintenance

The alone two automated locations in a lot of basal evaporative coolers are the fan motor and the baptize pump, both of which can be repaired at low amount and generally by a mechanically absorbed homeowner.

Ventilation air

The connected and top volumetric breeze amount of air through the architecture reduces the age-of-air in the architecture dramatically.

Evaporative cooling increases humidity, which, in dry climates, may advance the breathability of the air.

The pad itself acts as a rather able air clarify if appropriately maintained; it is able of removing a array of contaminants in air, including burghal blast acquired by pollution, behindhand of actual dry weather. Refrigeration-based cooling systems lose this adeptness whenever there is not abundant clamminess in the air to accumulate the evaporator wet while accouterment a connected crawl of condensate that washes out attenuated algae removed from the air.

edit Disadvantages

Performance

Top dewpoint (humidity) altitude abatement the cooling adequacy of the evaporative cooler.

No dehumidification. Traditional air conditioners abolish damp from the air, except in actual dry locations area recirculation can advance to a accretion of humidity. Evaporative cooling adds moisture, and in dry climates, boredom may advance thermal abundance at college temperatures.

Comfort

The air supplied by the evaporative acknowledgment is about 80–90% about humidity; actual boiling air reduces the dehydration amount of damp from the skin, nose, lungs, and eyes.

Top clamminess in air accelerates corrosion, decidedly in the attendance of dust. This can appreciably abbreviate the activity of cyberbanking and added equipment.

Top clamminess in air may could cause condensation. This can be a botheration for some situations (e.g., electrical equipment, computers, paper/books, old wood).

Water

Evaporative coolers crave a connected accumulation of baptize to wet the pads.

Baptize top in mineral agreeable will leave mineral deposits on the pads and autogenous of the cooler. Bleed-off and bushing (purge pump) systems may abate this problem. Such deposits would tend to apply the minerals aural the pad. Depending on the blazon and absorption of minerals, accessible assurance hazards during the backup and decay abatement of the pads could be present.

The baptize accumulation band may charge aegis adjoin benumb beginning during off-season, winter temperatures. The acknowledgment itself needs to be drained too, as able-bodied as bankrupt periodically and the pads replaced.

Miscellaneous

Odors and added alfresco contaminants may be destroyed into the architecture unless acceptable clarification is in place.

Asthma patients may charge to abstain ailing maintained evaporatively cooled environments.

A sacrificial anode may be appropriate to anticipate boundless evaporative acknowledgment corrosion.

Copse absolute of dry acknowledgment pads can bolt blaze even by baby sparks.

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