What should you Look for when you Want to Buy Evaporative Coolers?

Thus, you have decided that you need an evaporative cooler to end your suffering from the scorching heat of the summer air. However, you cannot just pick the first air cooler you see on the product display of an appliance store or on the product catalog of an online store. A wide variety of evaporative air coolers are offered in the market, and some units may suit your specific cooling needs.
Before you start your
search for the coolest evaporative cooler in town, you have to make sure that the climate in your area is suitable for evaporative cooling. It is because evaporative coolers are ideal only in dry or low-humidity areas. If you live in a very humid area, an evaporative air cooler may only make the air more humid.

swamp air cooler ILLUSTRATION

         http://www.youtube.com/watch?v=TGFj5w1GpRQ

1. Size. The proper size of the air cooler for maximum cooling depends on the size of your home. Look for the CFMs of evaporative coolers and see which ones match the size of your room. CFM (cubic feet per minute) refers to the amount of air that an evaporative air cooler can distribute within your house. For a 1,500-square foot home, 6,000 CFM is necessary.
2. Cooling Effect. Choose an air cooler with a large cooling effect, even if you are going to use it to cool a small room.
3. Airflow. Check the cooler if it blows enough air. Good airflow is crucial to effective cooling because a great amount of air is needed to get rid of heat. If an air cooler cannot provide that, then it is not worth considering.
4. Noise Level. Evaporative coolers naturally produce noise during operation. If you prefer a noiseless evaporative cooler, opt for a large one that can blow a reasonable amount of cool air. However, they cost a bit more than smaller ones.

You can ,as far as the above-mentioned features are conconcerned,surely buy evaporative coolers which satisfy u as well as keep u in a cool spot in the heatweaving weather.

Desert air cooler working process

What is an Evaporative Cooler?

An evaporative cooler (also swamp cooler, desert cooler, and wet air cooler) is a device that cools air through the evaporation of water.

Evaporative cooling differs from typical air conditioning systems which use vapor-compression or absorption refrigeration cycles. Evaporative cooling works by employing water's large enthalpy of vaporization. The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor, which requires much less energy than refrigeration. In extremely dry climates, it also has the added benefit of conditioning the air with more moisture for the comfort of occupants. Unlike refrigeration, it requires a water source, and must continually consume water to operate.

In the United States, the use of the term swamp cooler may be due to the odor of algae produced by early units.Air washers and wet cooling towers use the same principles as evaporative coolers but are optimized for purposes other than cooling the air inside a building. For example, an evaporative cooler may be designed to cool coils of a large air conditioning system to increase its efficiency.

Mini air cooler

Evaporative cooling is especially well suited for climates where the air is hot and humidity is low. In the United States, the western/mountain states are good locations, with evaporative coolers prevalent in cities like Denver, Salt Lake City, Albuquerque, El Paso, Tucson, and Fresno where sufficient water is available. Evaporative air conditioning is also popular and well-suited to the southern (temperate) part of Australia. In dry, arid climates, the installation and operating cost of an evaporative cooler can be much lower than that of refrigerative air conditioning, often by 80% or so. However, evaporative cooling and vapor-compression air conditioning are sometimes used in combination to yield optimal cooling results. Some evaporative coolers may also serve as humidifiers in the heating season.

In locations with moderate humidity there are many cost-effective uses for evaporative cooling,

in addition to their widespread use in dry climates. For example, industrial plants, commercial kitchens, laundries, dry cleaners, greenhouses, spot cooling (loading docks, warehouses, factories, construction sites, athletic events, workshops, garages, and kennels) and confinement farming (poultry ranches, hog, and dairy) often employ evaporative cooling. In highly humid climates, evaporative cooling may have little thermal comfort benefit beyond the increased ventilation and air movement it provides.

Source von Wikipedia


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Why an Air cooler (swamp cooler or spot coolers)?

Why an Air Cooler? (Also Known as a Swamp Coolers or Spot Coolers)

These free standing Portable Air Coolers (Evaporative Swamp Cooler) work by endothermic reaction (a reaction that consumes heat). They use a fan to draw in hot, dry air through a wetted material. As the hot dry air is pulled through the wetted material, the dry air absorbs moisture through evaporation which absorbs heat and the air is cooled and becomes more humid. The DRYER the input air, the more effective it is. If the air being drawn through the pads is humid (Above 58%) there will be no cooling effect because humid air will not absorb moisture through evaporation because it is already wet.

These Evaporative Portable Air Coolers (Evaporative Swamp Coolers) , Humidifiers, and Fan are versatile, lightweight and economical way to cool your personal air by cooling the air that goes through the unit down by  10°F to 15°F cooler than the ambient air temperature. The Coolers easily roll from room to room for use anywhere in your house or office.
 
Unlike a typical fan, which simply blows the ambient air around with no temperature change at all, the free standing Portable Air Cooler (Evaporative Swamp Cooler) can cool the ambient air that goes through the unit down by 10°F to 15°F and adding Ice for even extra air cooling!

In no way does free standing Portable Air Coolers (Evaporative Swamp Cooler) do the work of an air conditioner. It WILL NOT dehumidify the air nor will it cool a room by reducing the ambient air temperature of a room like an air conditioner. They simply are a better air blower than a typical fan and reduce the air temperature through the unit down 10 °F to 15 °F. They are for personal cooling!

The free standing Portable Air Cooling  (Evaporative Swamp Cooler) is environmentally friendly because they do not use freon. These Portable Air Coolers (Evaporative Swamp Cooler) have casters which allow it to be easily moved from room to room with no heavy lifting and uses 100 Watts!.

These free standing Air Coolers (Evaporative Swamp Cooler) are great for use in small apartments, condos, offices , RV's or any area that an air conditioner can not be used or can not reach.

Amongst all air cooling technologies, evaporative air cooling is the only method of natural cooling of Air. Evaporative air cooling works on the principle of 'heat absorption' by moisture/water evaporation. The evaporative air cooling draws exterior air into special cooling pads soaked with water where the air is cooled by evaporation and then circulated into the space to be cooled. Evaporative air cooling is the most cost effective method of air cooling.


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How Do Eco-friendly Evaporative Air Coolers Work?

How Do Eco-friendly Evaporative Air Coolers Work?

  

AS The temperature of the remaining water drops , water is evaporated by the moving air.  Heat and energy is carried away by the faster moving molecules as water in the Air Cooler  evaporates.when the water evaporates the air near the surface increases its relative humidity and would slow down the evaporation if it was not blown away and replaced with air with a low relative humidity. The wind from the Evaporative cooler  fan increases evaporation and the rate the energy leaves the liquid water.

Temperature is a measure of the energy in the water.Since the energy in the remaining water is dropping so too is the temperature of the remaining water. The same thing happens when you lick the back of your hand and blow on it. Top 7 Reasons to Purchase an Air Cooler Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.It feels cool. This is how an evaporative cooler works. Water is pumped over porous pads where air is drawn through causing the water to evaporate and cool the air.

The result is that hot dry air is converted into cool moist air that is blown into a house for cooling. The process works best when there is a good flow of air and the relative humidity of the incoming air is below 30%. The efficiency (cooling effectiveness) goes down with an increase in the relative humidity of outside hot air.

Experiment - Examining relative humidity effects on evaporative cooler operation

Evaporation Cooling Experiment Chart

In

many location where there is low relative humidity, one effective and inexpensive means to cool houses and businesses is with evaporative coolers. These use a fan to draw hot, dry outside air through water wetted pads where evaporation of the water cools the air. The cool moist air is then blown into the house and distributed for cooling.This experiment allows you to input the outside air relative humidity and the outside air temperature to obtain the temperature of the air that is blowing from the Air Cooler  into the house.

Evaporative Cooler Operation Illustration

What  you find: For a given temperature of outside air, as the relative humidity rises the temperature drop between the outside and inside air becomes less and less. Top 7 Reasons to Purchase an Air Cooler: http://www.gzxingke.en.alibaba.com 1.Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.For very dry air or low relative  humidity,the temperature drop can be 30 degrees or more. Temperatures greater than 80 degrees in the output air to the house is usually considered too high and few people will use them when this occurs.

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Eco friendly air cooler: Top 7 Reasons to Purchase an Air Cooler

Eco friendly air cooler: Top 7 Reasons to Purchase an Air Cooler: http://cosmeticsmachinery.blogspot.com 1.Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.

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