What is EVAPORATIVE Air Cooling?

Introduction

Civilizations throughout the ages have found ingenious ways to combat the heat in their region. For many thousands of years, a passive form of man-made evaporative cooling has been used. Thought to have been developed in Persia (Iran), badgirs (Farsi) or barjeels (Arabic) are towers that catch wind and funnel it past water, usually in the form of a pond and water fountain at the base of the tower, into a building. As the hot air passes through the water, it is cooled by the process of evaporation. Ingeniously, many of these buildings also have courtyards containing abundant water supply so that if the wind is not blowing, the natural action of rising hot air evaporates water from the courtyard, vents the cool air through the building and exhausts same through the tower.

What is Evaporative Air Cooling?

Evaporative cooling is a method of converting hot air into a cooling breeze using the evaporation of water. It is similar to the cool refreshing effect you feel when you immediately step out of the sea or swimming pool.

Our range of air-coolers utilizes the natural process of water evaporation along with an efficient air-moving system to create effective cooling. Fresh outside air is pulled through wetted filters that cool the air through the evaporation process. A centrifugal or computer designed axial fan type blower then circulates the cool air throughout the area requiring cooling.

Evaporative coolers have a low initial cost, use a lot less electricity than conventional air conditioners and do not use refrigerants, such as chlorofluorocarbons (CFCs) and hydro chlorofluorocarbons (HCFCs) that damage the ozone layer.

Benefits of Evaporative Air Cooling

• Cooler temperatures

  Evaporative air-cooling creates cooler temperatures in a number of ways:

  • It lowers actual temperature and can deliver cooler air under a wide variety of typical summertime climatic conditions.
  • It lowers effective temperature (the temperature you feel) by an average of 4º to 6.5º C (7º to 12 º F). In some cases, the temperature may be lowered by more, depending on relative humidity and ambient temperature.
  • It reduces radiated heat. The constant flow of cool air absorbs heat from all exposed surfaces and results in a reduction of the heat radiated to the human body.

• Environmental Benefits

  Evaporative cooling provides 100% fresh, cool air continuously while traditional refrigerated air conditioning utilizes a closed system that re-circulates the same stale, dry air over and over. Constant air movement of the evaporative cooler system pushes hot air out removing dust, pollen, smoke, odor and pollution and replaces it with cool, fresh air.

  Evaporative cooling is also an environmentally-friendly alternative to air conditioning since it has no CFC's or HCFC's.

• Energy Savings

  Are your business or residential air conditioning bills threatening to drive you out of business or your home? Evaporative air cooling systems typically use 70% to 90% less power than conventional air conditioning and best of all, you can leave the windows and doors open.

• Comfort and Health

  Research is shown that as temperatures climb, productivity and attentiveness drops off. Whether you are in school, church, at work, or in your home, being comfortable is important. Evaporative air cooling provides 100% fresh, cooled air continuously while conventional air conditioning uses a closed system that re-circulates the same stale air over and over again. Then constant air movement of the evaporative air cooler system pushes hot air out, thereby removing dust allergens, smoke odor and pollution while replacing it with cool fresh air. This is good for you, and makes our air cooling systems kind to asthma and allergy sufferers