Friday, August 19, 2011
China Sourcing Fair: Electornics & Components(Mumbai)
AOLAN is going to Mumbai for exhibition during November 23-25, 2011
Swamp Cooler vs Air Conditioner
Although swamp coolers and air conditioners were invented to turn hot air into cool, the science behind each method is quite different.
What is a swamp cooler? It’s just another name for an evaporative cooler. Water is used to wet absorptive pads around the sides of the cooler.
A fan or "squirrel cage" draws outside air through the pads and the air is cooled as the water in the pads evaporates.
The major benefit of this type of cooler is that you only need to power a water pump and a fan to draw the air through the pads.
They typically use between three and 10 gallons of water per day. That's equivalent to a few toilet flushes or, on the high end, a short shower.
Unless the relative humidity is less than a maximum of 40%, swamp coolers are not very effective. They work well in the Southwest, West Texas, and parts of Idaho, Washington, Colorado, Wyoming, and Montana. In these areas you could expect a swamp cooler to achieve a 15- 20 degree difference between outside and inside temperatures.
Also, for a swamp cooler to remain effective it must exhaust as much air as it takes in. This necessitates keeping a
window open. If you don’t, the humidity will rise and so will the temperature of the air blown from the cooler.
Air conditioning, on the other hand, is popular because it will reliably dehumidify and cool the air, no matter where you live. This how an air conditioner works:
The compressor compresses cool Freon gas, causing it to become hot, high-pressure Freon gas. This hot gas runs through a set of coils so it can dissipate its heat, and it condenses into a liquid.
The Freon liquid runs through an expansion valve, and in the process it evaporates to become cold, low-pressure Freon gas. This cold gas runs through a set of coils that allow the gas to absorb heat and cool down the air inside. Mixed in with the Freon is a small amount of lightweight oil that lubricates the compressor.
Swamp cooler cost vs air conditionerAs far as hard costs, evaporative coolers are less expensive than air conditioners. For example, a 4500 CFM evaporative cooler costs about $700 to purchase and install. A similarly sized AC unit would cost about $2,500. In addition, repair parts are often more expensive for AC units than evaporative coolers.
Which is cheaper to operate?The swamp cooler wins handily. For similar sized units, the annual utility costs for an air conditioner are three times those of a swamp cooler (water & electric).The difference is the amount of energy required to power an air conditioner compressor versus the electric motors used in a swamp cooler.
MaintenanceThe evaporative cooler can easily be serviced by any home owner with a minimum of mechanical knowledge, a screwdriver and an adjustable wrench. On the other hand, repair and maintenance of air conditioning systems should be left to professional service technicians.
Which is better for the environment?Unless you believe that soon to be outlawed R-22 refrigerant leaking into the atmosphere from your air conditioner is a good thing, the swamp cooler wins again. The swamp cooler maintains a Green profile by mimicking nature’s way of cooling.How an air conditioner or swamp cooler affects the indoor environment of your home is determined by the way each circulates the air. Although an air conditioner re-circulates the same air, it's helpful in controlling allergens such as dust and pollen.Since open windows are necessary when running a swamp cooler, you’ll be letting in everything the air conditioner keeps out.
Swamp Cooler vs Air Conditioner: Which one wins?I think swamp coolers are an inexpensive alternative to air conditioning if you live in Phoenix, Arizona or anywhere the humidity is around 30%. But if you call Little Rock, Arkansas your home, nobody’s going to talk you out of your air conditioner.
What is a swamp cooler? It’s just another name for an evaporative cooler. Water is used to wet absorptive pads around the sides of the cooler.
A fan or "squirrel cage" draws outside air through the pads and the air is cooled as the water in the pads evaporates.
The major benefit of this type of cooler is that you only need to power a water pump and a fan to draw the air through the pads.
They typically use between three and 10 gallons of water per day. That's equivalent to a few toilet flushes or, on the high end, a short shower.
Unless the relative humidity is less than a maximum of 40%, swamp coolers are not very effective. They work well in the Southwest, West Texas, and parts of Idaho, Washington, Colorado, Wyoming, and Montana. In these areas you could expect a swamp cooler to achieve a 15- 20 degree difference between outside and inside temperatures.
Also, for a swamp cooler to remain effective it must exhaust as much air as it takes in. This necessitates keeping a
window open. If you don’t, the humidity will rise and so will the temperature of the air blown from the cooler.
Air conditioning, on the other hand, is popular because it will reliably dehumidify and cool the air, no matter where you live. This how an air conditioner works:
The compressor compresses cool Freon gas, causing it to become hot, high-pressure Freon gas. This hot gas runs through a set of coils so it can dissipate its heat, and it condenses into a liquid.
The Freon liquid runs through an expansion valve, and in the process it evaporates to become cold, low-pressure Freon gas. This cold gas runs through a set of coils that allow the gas to absorb heat and cool down the air inside. Mixed in with the Freon is a small amount of lightweight oil that lubricates the compressor.
Swamp cooler cost vs air conditionerAs far as hard costs, evaporative coolers are less expensive than air conditioners. For example, a 4500 CFM evaporative cooler costs about $700 to purchase and install. A similarly sized AC unit would cost about $2,500. In addition, repair parts are often more expensive for AC units than evaporative coolers.
Which is cheaper to operate?The swamp cooler wins handily. For similar sized units, the annual utility costs for an air conditioner are three times those of a swamp cooler (water & electric).The difference is the amount of energy required to power an air conditioner compressor versus the electric motors used in a swamp cooler.
MaintenanceThe evaporative cooler can easily be serviced by any home owner with a minimum of mechanical knowledge, a screwdriver and an adjustable wrench. On the other hand, repair and maintenance of air conditioning systems should be left to professional service technicians.
Which is better for the environment?Unless you believe that soon to be outlawed R-22 refrigerant leaking into the atmosphere from your air conditioner is a good thing, the swamp cooler wins again. The swamp cooler maintains a Green profile by mimicking nature’s way of cooling.How an air conditioner or swamp cooler affects the indoor environment of your home is determined by the way each circulates the air. Although an air conditioner re-circulates the same air, it's helpful in controlling allergens such as dust and pollen.Since open windows are necessary when running a swamp cooler, you’ll be letting in everything the air conditioner keeps out.
Swamp Cooler vs Air Conditioner: Which one wins?I think swamp coolers are an inexpensive alternative to air conditioning if you live in Phoenix, Arizona or anywhere the humidity is around 30%. But if you call Little Rock, Arkansas your home, nobody’s going to talk you out of your air conditioner.
Portable Air Conditioner Reviews
Portable air conditioning units offer a solution to unique cooling problems when traditional options
such as window air conditioners or central air aren't viable. Here are a few situations where a stand
alone air conditioner could be just the answer you're looking for.
Other portable room air cooling units like a fan create a cooling breeze but do nothing to reduce
humidity; while a portable swamp cooler actually adds moisture to the air as it cools. This leaves
only the portable air conditioner as a viable source of cooling and dehumidifying when traditional
cooling appliances are unavailable.
such as window air conditioners or central air aren't viable. Here are a few situations where a stand
alone air conditioner could be just the answer you're looking for.
- New additions or that room above the garage you just remodeled.
- College dorm rooms.
- When window air conditioners are not permitted by the landlord.
- The central A/C doesn't reach the uppermost rooms of your home.
- Irregular shaped windows won't accommodate a window unit.
- Fear of damaging new vinyl replacement windows with an in-window unit.
- Extra cooling for rooms containing sensitive electronic equipment like computers.
Other portable room air cooling units like a fan create a cooling breeze but do nothing to reduce
humidity; while a portable swamp cooler actually adds moisture to the air as it cools. This leaves
only the portable air conditioner as a viable source of cooling and dehumidifying when traditional
cooling appliances are unavailable.
Tuesday, August 16, 2011
Can I Use a Swamp Cooler Where I Live?
If you would like to find out if your local climate is suitable for a swamp cooler, click this
link to NOAA(National Oceanic and Atmospheric Administration). The table lists the
average relative humidity for representative cities in all 50 states.
The M and A columns stand for Morning and Afternoon. As you will quickly notice, the
humidity decreases in the afternoon as the heat of the day increases.
link to NOAA(National Oceanic and Atmospheric Administration). The table lists the
average relative humidity for representative cities in all 50 states.
The M and A columns stand for Morning and Afternoon. As you will quickly notice, the
humidity decreases in the afternoon as the heat of the day increases.
Monday, August 8, 2011
How does evaporative air cooler work?
Evaporative air cooler is essential wet air traveling through your home or space absorbing heat that's radiated from all the surfaces. When you first step out of a shower or swimming pool, don't you feel cool when you first hit the air? That's natural evaporative air cooler.
Evaporative air cooler uses the same priniciple. They blow air through cool wet sponges. The blowing wet air picks up heat and makes the space feel cooler. With today's high energy prices, evaporative air cooler provides an efficient and cheap process of cooling for people who live in a dry-heat area. In fact, the hotter and dryer the temperature, the better they work. Plus they bring in a constant supply of fresh air. Evaporative air cooler costs less to buy, and unlike a/c units, can be maintained by the homeowner.
Evaporative air cooler uses the same priniciple. They blow air through cool wet sponges. The blowing wet air picks up heat and makes the space feel cooler. With today's high energy prices, evaporative air cooler provides an efficient and cheap process of cooling for people who live in a dry-heat area. In fact, the hotter and dryer the temperature, the better they work. Plus they bring in a constant supply of fresh air. Evaporative air cooler costs less to buy, and unlike a/c units, can be maintained by the homeowner.
Thursday, August 4, 2011
Why I choose AOLAN
Evoparative air cooler has a fan that absorbs the hot dry air in the cooler, which is passed through cooling pads. The pads are damped by the pump that circulates water through the machine. As the dry air picks up some of the water, its temperature drops, sometimes by as much as 30 degrees fahrenheit, depending on the climate. The cooled air blown into the room. Another advantage of evaporative cooler is that the pads that cool the air can also filter it. As the air passing through the pads, dir, dust, allergens and other pollutant are capured in the fibers of the pads. So you can breathe cleaner and cooler air.
Air conditioning only re-circulates the same air you've breathing and living in for days. However, Aolan Evaporative Air Cooler continually circulates the outside fresh air.
Each Aolan air cooler has large cooling pads. During the cooling circulation, these pads are damped by water distributor. Hot air from ourside is then drawn through these pads and cooled by the water evaporation.
Besides, as Aolan product moisturizes the air, your skin, eyes and nose don't suffer the dryness caused by air conditioning. What's more, Aolan Evaporative Air Cooler filters the air as it's cooled, removing dust, mold, and smoke…
Air conditioning only re-circulates the same air you've breathing and living in for days. However, Aolan Evaporative Air Cooler continually circulates the outside fresh air.
Each Aolan air cooler has large cooling pads. During the cooling circulation, these pads are damped by water distributor. Hot air from ourside is then drawn through these pads and cooled by the water evaporation.
Besides, as Aolan product moisturizes the air, your skin, eyes and nose don't suffer the dryness caused by air conditioning. What's more, Aolan Evaporative Air Cooler filters the air as it's cooled, removing dust, mold, and smoke…
Wednesday, August 3, 2011
Evaporative air cooler
An evaporative air 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
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.
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.
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