An evaporative cooler is an innovative device that cools air through the natural process of water evaporation. Unlike conventional air conditioning systems that rely on vapour-compression or absorption refrigeration cycles, evaporative cooling harnesses the large enthalpy of vaporisation of water to provide a more energy-efficient cooling solution.
An evaporative cooler operates by pulling warm, dry air through wetted filter pads, which facilitates the evaporation of water. This process significantly lowers the temperature of the air, allowing for comfortable indoor environments while using much less energy than traditional refrigeration methods. Particularly effective in dry climates, evaporative cooling not only cools the air but also adds moisture, enhancing the comfort of building occupants.
Unlike closed-cycle refrigeration systems, evaporative cooling requires a continuous water supply, making it vital for operation. The air drawn in must be expelled, ensuring that the cooled, moist air creates positive pressure, effectively pushing out the warm air from your home or office.
Key Benefits of Evaporative Cooling
Energy Efficiency
Evaporative cooling is one of the most energy-efficient cooling methods available for homes, offices, factories, and other work areas. It operates without the use of ozone-depleting chemicals, making it an environmentally friendly choice.
Lower Actual Temperature
As warm air passes through wetted filter pads, the evaporative process lowers the outside air temperature before it enters your space. The cooling effect can vary based on system efficiency, airflow, and external conditions. Your dealer can advise on expected temperature reductions tailored to your area.
Lower Effective Temperature
The effective temperature refers to the cooling sensation felt by individuals due to air movement across the skin. A breeze can make you feel 2 to 4 degrees cooler than the actual air temperature, as the increased airflow enhances evaporation from the skin, providing a refreshing relief from heat.
Reduced Radiated Heat
In typical conditions, heat radiates from your body to surrounding walls and ceilings. However, as temperatures rise above 34-35°C, this heat can radiate back to you. Evaporative cooling systems mitigate this by continually supplying cool air that absorbs heat from surfaces, helping occupants feel significantly cooler.
100% Fresh Air
Evaporative air conditioning systems ensure a continuous influx of fresh, cool air, effectively pushing out stale air and preventing recirculation. This constant airflow enhances overall air quality in your home or building.
Effective Filtration
The system filters outside air through wet filter pads, trapping dust, pollen, and other pollutants, making it an excellent option for allergy sufferers. This process flushes airborne contaminants from the air, ensuring a healthier indoor environment.
