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Topic: Evaporative cooling

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	Evaporative cooling - Wikipedia, the free encyclopedia
		Evaporative cooling is a system in which latent heat of evaporation is used to carry heat away from an object to cool it.
		Evaporative cooling is a very common form of industrial and residential cooling since it is relatively cheap and requires less energy than many other forms of cooling.
		Evaporative cooling is commonly used in cryogenic applications.
	en.wikipedia.org /wiki/Evaporative_cooling (541 words)

	Swamp cooler - Wikipedia, the free encyclopedia
		Evaporative cooling is especially well suited where the air is hot and humidity is low.
		An earlier form of air cooling was invented in Persia (Iran) thousands of years ago in the form of wind shafts on the roof, which caught the wind and passed it through water and blew the cooled air into the building [2].
		Typically, residential and industrial swamp coolers use direct evaporative cooling and can be described as an enclosed, metal or plastic box with vented sides containing an axial fan (squirrel cage), fan motor with pulley wheels and a water pump to wet the cooling pads.
	en.wikipedia.org /wiki/Swamp_cooler (1111 words)

	Evaporative cooling: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-21)
		Evaporative cooling is a very common form of residential cooling in inland parts of Australia, EHandler: no quick summary.
		(frost) is generally the cooling of a body by the transfer of a portion of its heat away from it....
		A cooling pond is a man-made body of water primarily formed for the purpose of providing cooling water for a nearby power plant....
	www.absoluteastronomy.com /encyclopedia/e/ev/evaporative_cooling.htm (1016 words)

	EVAPORATIVE COOLER
		Evaporative cooling is one of the most ancient and one of the most energy-efficient methods of cooling a home.
		The most common form of residential evaporative cooling uses a vertical pad of cellulose fiber, a system for delivering water to the top of the pad, and a fan to draw air through the porous pad as the water runs down the medium and is absorbed.
		Average consumption of water for cooling, as well as total hours of cooler run time were both heavily influenced by the number of homes that could switch to air conditioning.
	www.ci.phoenix.az.us /WATER/evapcool.html (1491 words)

	Evaporative Cooling (Site not responding. Last check: 2007-10-21)
		Evaporative cooling, which uses the heat in the air to evaporate water from leaves and other wetted surfaces, can cool the greenhouse to 10-20° F below outside temperature.
		With an evaporated cooling system, humid air containing the heat that it picked up within the greenhouse is exhausted out through the vents or fans, and cooler, drier air is brought in.
		Comparison of the air temperature leaving the evaporative cooling system at different levels of relative humidity of the outside air when the inside temperature is 90º F. Send mail to agra-tech@agratech.com with questions or comments about this web site.
	www.agra-tech.com /evaporative_cooling.htm (726 words)

	BC Hydro - Power Smart for Business - Evaporative Cooling
		Evaporative cooling is a process by which moisture is added to air in order to reduce air temperature and increase relative humidity.
		Because a direct evaporative cooling system does not recirculate any air, it is imperative that the building's exhaust system is able to match the rate at which conditioned air is introduced to the space.
		In a typical indirect evaporative air cooler, the essential element is a heat exchanger in which dry air contacts heat-exchange surfaces whose other sides are cooled evaporatively.
	www.bchydro.com /business/investigate/investigate803.html (1350 words)

	About Evaporative Cooling (Site not responding. Last check: 2007-10-21)
		Using the "kiss" method (keep it simple, stupid), evaporative cooling is the use of this evaporation process to cool the air passing through a wetted cooling media.
		The mechanics of building evaporative cooling equipment is similar to any other ventilating or heating equipment with the exception that an evaporative cooling section is required.
		Evaporative cooling is commonly used to pre-cool the air passing over heat exchangers, motors and many other types of mechanical equipment.
	www.piec.com /page3.htm (2149 words)

	FALCON PORTABLE EVAPORATIVE COOLING SYSTEMS (Site not responding. Last check: 2007-10-21)
		Evaporative cooling might best be illustrated by the chill felt when comming out of a swimming pool.
		Likewise, with today's evaporative cooling units, air is drawn through the wet pad media and the heat exchange takes place as air moves over the wet pad causing water to evaporate off the pad removing heat from the air.
		Evaporative cooling pads typically produce the most effective evaporative cooling when designed to provide the maximum interaction possible between the air and the water.
	www.falconexportservices.com /portacool.html (409 words)

	feature - WineMaker Magazine: Evaporative Cooling
		Evaporative cooling means using the power of water evaporation to cool a fermentation.
		For example, at 70 °F, the evaporative coolings at 20, 50 and 80% relative humidities are 20, 12, and 4 °F, respectively.
		The controllability of a fermentation temperature using evaporative cooling depends significantly on the daily variability in the ambient temperature and the mass of fermenting juice, which serves to buffer temperature change.
	winemakermag.com /feature/200.html (1673 words)

	Evaporative air cooling
		The cooling sensation felt by a person when a breeze passes over and evaporates perspiration on their skin, is the most common human experience of the phenomenon.
		According to a report by the World Bank there are over 4 million evaporative air coolers in operation in the United States of America, providing estimated annual energy savings equivalent to 12 million barrels of oil, in addition to an annual reduction of 5.4 billion pounds of CO2 emissions.
		As the effects of global warming, are felt in cooler climates, the use of evaporative air coolers is becoming widespread, especially in the United Kingdom and Europe.
	www.tombling.com /cooling/evaporative-air-cooling.htm (506 words)

	What is Evaporative Cooling?
		Evaporative cooling is a method of converting hot air into a cool breeze using the process of evaporating water.
		Evaporative cooling provides 100% fresh, cool air continuously while traditional refrigerated air conditioning utilizes a closed system that recirculates the same stale dry air over and over.
		If the air conditioner and the evaporative cooler ran for a comparable period of time, the ratio of energy for the evaporative cooler to the air conditioner would be 0.991 Kw per hour to 3.6 Kw per hour, or 0.275.
	www.kennspenns.com /cooling/champ~whatis.html (552 words)

	Evaporative Cooling (Swamp Cooler)
		Cooling by evaporation works very efficiently in dry areas, but isn't worth spit in the tropics, or any other humid climate.
		Evaporative coolers are energy efficient since the blower motor only has to move the air and not compress a refrigerant gas as required in an air conditioner.
		Evaporative coolers are also made for RV's and campers, and are designed to utilize 12 volt DC power.
	www.jbmailroom.com /swamper (1263 words)

	Wescor evaporative cooling white paper
		Evaporative cooling has made summers more bearable for thousands of years and with 21st century technology provides effective, economical, environmentally friendly, and healthy cooling.
		Evaporative cooling is responsible for the chill you feel when a breeze strikes your skin—the air evaporates the water on your skin, with your body heat providing the energy.
		In hotter areas or where cooling loads are high, such as in office buildings, one of the most useful applications for indirect evaporative cooling is supplementing a chiller or DX system.
	www.wescorhvac.com /EvapWhitePaper.htm (1571 words)

	Evaporative Cooling
		An evaporative cooler is basically a water-saturated paper or aspen-fiber pad with a fan blowing over it.
		During this process, warm outside air is cooled by evaporation and blown into the home.
		As you might imagine, the cost of powering an evaporative cooler's fan and a small water pump is far less than running air conditioning.
	www.taunton.com /finehomebuilding/pages/h00091.asp (306 words)

	Evaporative Cooling Reviews and Ratings (Site not responding. Last check: 2007-10-21)
		The blower motor draws ambient air through the evaporative pads pre-cooling the air before it is drawn through the chilling core.
		After the air is cooled it is directed outward to cool the occupants.
		The water that has been used plus excess humidity in the air and not evaporated during this process is then returned back to the ice chest to complete the cycle.
	www.gotoreviews.com /archives/evaporative-cooling (583 words)

	Welcome To Home Energy Magazine Online
		If the evaporative cooler is of the direct, single-stage variety, then the answer is no. Single-stage evaporative coolers are approximately 60% to 85% effective in reaching wet-bulb temperature (the coldest the incoming air can become by evaporating water into it).
		The process of two-stage cooling similar to that of refrigeration-based air conditioning, in that heat is transferred (or pumped) from the primary air to a secondary airstream.
		He holds three patents in indirect evaporative cooling and is a member of the ASHRAE Standards Committees on direct and indirect evaporative coolers.
	homeenergy.org /archive/hem.dis.anl.gov/eehem/97/970511.html (964 words)

	Phason - Evaporative cooling
		The process of operating all the sprinklers in sequence for their soak/mist durations and then evaporating the moisture, either naturally or mechanically, is called a cooling cycle.
		Direct evaporative cooling is achieved by evaporating water from the surface of an object, such as the hide of an animal.
		Indirect evaporative cooling is achieved by evaporating water vapor in the air.
	www.phason.ca /eccontrols.htm (392 words)

	DESICCANT ROTORS INTERNATIONAL - ECOCOOL COOLING PADS
		Evaporative Cooling is the growing buzzword for comfort cooling.
		Ecocool Evaporative Cooling Pads are available in both 5 mm and 7 mm flutes and can be customized for sizes and flute angles.
		The Ecocool Evaporative Cooling Pads are made of special grade cellulose paper and are engineered from specially treated cross-sectional fluted media, capable of absorbing and retaining water to provide the maximum cooling efficiency.
	www.drirotors.com /ecocool.htm (485 words)

	Portable Pro-Kool Evaporative Cooling Fans from Automotive Service Equipment
		Evaporative cooling is the same process your body uses to cool itself.
		Evaporation requires heat to change liquid water-to-water vapor and this heat is taken from your skin, producing the cooling effect.
		The cooled air is then forced through a building or space and displaces the warm air out building openings, cooling the surroundings.
	www.asedeals.com /cooling_fans_pro-kool.html (696 words)

	Evaporative cooling
		Evaporative cooling has long been recognized as the most efficient, ecological and safe method of cooling.
		Evaporation, nature’s air conditioner, is the most economical method for air cooling.
		Air conditioners, evaporative coolers and air handlers are now customizable within a 1” increment to provide owners with a cost effective and efficient air conditioning system.
	www.unitedmetal.com (263 words)

	Evaporative Cooling Tower Systems
		They can be used to cool the condensers on water cooled chillers, hydraulic cooling on molding machines, blow molding machines, air compressors, or any process that operates at or above 100 F (40 C).
		Evaporative cooling towers are basically a large galvanized steel or fiberglass casing where water is pumped up to the cooling tower and sprayed over a PCV wet deck, falling down to the basin where it is collected and drained back to the central pump set.
		Because some of the water is lost to evaporation, the cooling tower constantly adds water to the system to make up the difference.
	www.temperaturecorporation.com /cooling-towers.htm (367 words)

	Evaporative Cooling
		Evaporative cooling occurs when water evaporates in dry air; the temperature and the vapor pressure of the water and the air attempt to equalize.
		Temperature regulation by evaporative cooling in a desert grasshopper, Calliptamus barbarus (Ramme, 1951)
		Thermoregulation and evaporative cooling in the cicada Okanagodes gracilis (Homoptera, Cicadidae)
	database.biomimicry.org /item.php?table=strategy&id=1037 (1188 words)

	Commercial portable evaporative cooling
		EventAir portable evaporative air coolers are robust, reliable units designed for continuous use in open or well ventilated spaces.
		The Coolcube is a quiet, attractive portable evaporative cooler that has been designed with the busy workplace in mind.
		The Coolcube evaporative cooler is extremely environmentally friendly - it runs on ordinary tap water and uses a fraction of the energy of a refrigerated air conditioner.
	www.tombling.com /cooling/portable-cooler.htm (285 words)

	RollSeal Evaporative Cooling
		Evaporative cooling is a time-tested and efficient means of reducing air temperature by drawing incoming air across a wetted surface.
		Evaporative cooling is especially useful in situations where air inside the space to be cooled is well ventilated.
		Evaporative cooling needs only two factors to work: water and moving air.
	www.rollseal.net /rollseal2000/evapcool.htm (107 words)

	Evaporative Coolers
		A good rule of thumb is to have 1 air change every 3 minutes in northern states, 1 air change every 2 minutes in the mid section and 1 air change every 1-2 in the southern states.
		Mechanical cooling cools no matter what the humidity is and usually increases your home value more then a evap cooler, but a well designed evap install, cost less to install and hardly noticeable on your utility bill.
		The limitations of an evaporative cooler under conditions of high wet bulb temperature should be explained to the customer.
	www.hvacwebtech.com /evaporative.htm (568 words)

	Industrial evaporative cooling equipment, makeup air units
		A very small improvement in cooling efficency is not an equitable trade-off for the considerable additional cost.
		Filter housings with Evaporative Cooling to filter and cool the intake air to the turbine.
		Evaporative cooling module with selected accessories to retro-fit heaters with cooling capability.
	www.piec.com (522 words)

	What Is Evaporative Cooling? (Site not responding. Last check: 2007-10-21)
		Outdoor air-conditioning, not a swamp cooler, but evaporative cooling when cooling fans are not efficient for cooling, spot cooling or for cooler air instead of fans simply blowing hot air.
		When the day gets hot enough to require cooling, the relative humidity will be much lower than in the morning and allow evaporative cooling to work more efficiently.
		The efficiency of any evaporative cooling device is directly related to its ability to evaporate water (cool) at a given relative humidity.
	www.portablecoolers.com /evap/evap.html (1124 words)

	Outdoor Misting Fans, Evaporative Cooling, Spray Nozzles, High Pressure Pumps - Cline Misting
		We produce this cooling effect by what is referred to as evaporative cooling.
		Evaporative cooling is achieved by the high pressure pumps pumping water through the spray nozzles which turns the water into tiny droplets of mist.
		The tiny water droplets produced by evaporative cooling trap the dust particles, thereby reducing the amount of dust in your work area.
	www.clinemisting.com (143 words)

	Members of The Evaporative Cooling Institute
		Indirect cooling modules can be added to all master cool models for the highest efficiency available in evaporative technology.
		These portable evaporative coolers are the result of over 60 years manufacturing industrial / commercial fans and ventilation equipment and over 40 years manufacturing evaporative cooling systems for the greenhouse industry.
		At the core of Spec-Air's unique product line is the Stage II Indirect Evaporative Cooling Module which provides the flexibility of being a stand-alone ducted module, and energy recovery system for packaged rooftop units (ACER), and as the dry plate exchanger in a dehumidification / reheat curb (Spinner).
	www.evapcooling.org /members.htm (873 words)

	ECI: Evaporative Cooling International
		About Us In 1995 Evaporative Cooling International introduced a new generation of cooling equipment to the Middle East by establishing the EVAPCOOL A/C Factory in Dubai to serve the GCC and surrounding countries.
		With its revolutionary advance in efficiency, evaporative cooling becomes a viable option in a broad new range of locations and applications.
		EVAPCOOL evaporative coolers have been specifically designed to operate and function well in the harsh/humid environment of the Arabian Gulf.
	www.evapcoolme.com (216 words)

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