Keeping the indoor environment cool and comfortable during the warm summer months can be a frustrating and often expensive task, to say the least. An evaporative air cooler offers an ecological, healthy and cost-effective alternative to traditional air conditioning systems.
Evaporative air conditioners, also called evaporative coolers, are devices that cool the air by evaporating water, using the large enthalpy of vaporization of water, that is, the ability of water to exchange energy with its environment.
From the ecological point of view, the air conditioning, for its refrigerant, is more harmful to the environment. The air coolers are more ecological, using only water.
Evaporative cooling is a simple and cost-effective method for cooling interior spaces. However, depending on the climate where you live, evaporative cooling may not be the most efficient cooling option for you. Therefore, understanding how evaporative air coolers work will help you decide if it is the cooling solution you need.
Working of an Air Cooler in Humid Condition
Cooling by evaporation is quite simple and occurs naturally. For example, sweating in hot weather is a form of evaporative cooling, so your body produces sweat, which evaporates and allows the body to cool. You can also feel the effects of evaporative cooling when you leave a pool on a hot day and immediately feel a chill. These cooling effects occur because the dry air passes over the water, absorbing a part of it.
This absorption occurs when the temperature and pressure of the water vapor tries to equalize with the air. As a result, the water molecules are converted into gas molecules and the temperature of the air that is higher and the temperature of the water that is lower is switched.
To constantly freshen your home, residential evaporative air coolers rely on this natural phenomenon, using a fan to collect hot and stale air inside the unit, where it is passed over cushions moistened with water to cool it down. During this process, the air cools to 6 degrees. Then, the fresh, rejuvenated air circulates again. Since fresh air is circulating and a continuous breeze is created, the ambient temperature may feel a few degrees lower than the actual temperature.
The key to efficient cooling with an evaporative air conditioner is that the hot air is dry, like that found in desert areas. In fact, evaporative coolers are most effective during the hottest part of the day and when humidity levels are below 50 percent. These machines would actually be ineffective in hot and humid areas, because the air is already saturated with moisture.
How do evaporative air conditioners compare to traditional air conditioning systems in terms of cost-effectiveness, energy efficiency and environmental impact?
The use of simple technology to cool indoor air helps portable air coolers succeed in energy efficiency. When compared to air conditioners that use refrigerated cooling systems, the operation of evaporative air conditioners costs up to 50 percent less. In fact, a 90 cm evaporative air cooler running for eight hours, usually costs less than one euro, because the only costs associated with the operation are water and electricity. This is almost three times cheaper than the costs of traditional cooling systems.
For environmentally conscious consumers, evaporative coolers are an ideal solution to keep us fresh and without damaging the environment. Unlike traditional air conditioners that use refrigerants to cool homes, evaporative air conditioners use a natural process that cools the air with movement and water. This process does not add contaminants or other chemicals that can harm the environment.
On the other hand, evaporative coolers really work best when fresh air is available, such as coming in through a window or an open door. This constant circulation ensures that the indoor air is cooler than it would be with traditional air conditioners that require an airtight space to operate. Further,
Facts know about Working of an Air Cooler in Humid Condition
An air conditioner needs refrigerants to cool the air through refrigeration cycles by vapor compression or absorption. A Honeywell air cooler, works through an evaporation process: water is pumped from the tank and poured on the cooling medium which absorbs heat from the air, cooling and humidifying the environment. In this way, cold air leaves the unit with the help of a fan.
It is widely known that refrigerant gases from air conditioning are harmful to the planet. In the opposite direction, an air cooler is more environmentally friendly when using water, in addition, the cooling process of the Honeywell air cooler does not require a compressor so it reduces energy consumption.
The air conditioner cools the air and makes it dry, and works only indoors. A Honeywell air cooler refreshes the air naturally and is a three in one, i.e. cooler, humidifier and fan, so it works also in open spaces.