What Is The Process Of Evaporative Cooling?
Evaporative cooling cools the air by evaporation. The evaporative cooler, often known as a swamp cooler, is made up of three basic parts: a pump, a cooling pad, and a fan.
The procedure is fairly straightforward, a pump within the evaporative coolers pumps water from the reservoir onto a cooling pad. As a result, the pad becomes damp. A fan within the cooler takes air from the outside environment and passes it through the wet pad. Evaporation cools the air as it travels through the pad.
When it comes to evaporative cooling systems, there are two temperatures to be mindful of. They are as follows:
The dry bulb temperature is the natural temperature of the air around us, which we often measure using a thermometer.
The wet bulb temperature is the lowest temperature that can be obtained solely from water evaporation.
Water requires energy to convert from liquid to vapor, and this energy is often derived from the air itself. The heat energy released by the air entering the cooler is used to evaporate the water. The dry bulb temperature of the air traveling through the cooler is decreased and dispersed back into the environment throughout this procedure. It is critical to realize that the temperature of the water does not affect the cooling provided by the evaporation process.
The humidity of the air is a critical component in the effectiveness of evaporative cooling. Evaporation occurs only when the humidity of the air is less than 100%. The more successful the evaporative cooling process, the lower the humidity. The potential for evaporative cooling is calculated by comparing the wet bulb temperature to the dry bulb temperature of the air. The relative humidity is calculated using these two indicators.
What About Evaporative Cooling Systems?
One of the primary distinctions between an evaporative cooler and a portable or fitted system is that the evaporative cooler lacks exhaust lines and external condenser boxes. They vary from air conditioners in that they do not provide ‘refrigerant air,’ but rather ‘cooled air.’
What makes evaporative cooling so appealing is its incredible cost-efficiency, with the ability to reduce your operating costs by up to 90%, as well as the fact that it is the most environmentally friendly solution available on the market because it introduces fresh air that is free of refrigerant gasses.
How Can You Be Sure You’re Getting The Most Out Of Your Evaporative Cooling?
The key to successful evaporative cooling is to have each of the cooling pads saturated at all times during operation and to make sure that the system’s fan and motors are scaled and constructed to provide the right airflow for your facility.
Working with an experienced supplier that understands the unique demands of your industry sector, such as reducing downtime and ensuring that system installation and commissioning are completed without contamination hazards, is crucial.
However, we must not forget that evaporative cooling is not always the best answer for your needs and may even be the wrong one depending on your industry, environment, or site of installation. Some limitations to the appropriate usage of evaporative coolers include:
• They must not be utilized in closed or unventilated places since they rely on the flow of fresh air to function.
• Once filled with water, they will just pump humidity into the space, making it moist and causing mould and other later harm to electrical systems or contents in that area if utilized in an unventilated environment.