Evaporative cooling pads use the heat of evaporation to cool air. The evaporative cooler, also known as the swamp cooler, comprises three main components: a fan, a cooling pad, and a pump.
The process is simple. The pump in the evaporative cooling system circulates water through the reservoir to a cooling pad. The pad is then made wet. There is also an air fan inside the cooler that draws outside air through the pad.
When you are looking at evaporative coolers, there are two temperatures to keep in mind. These are:
The Dry Temperature: This is the temperature of the surrounding air that we measure using a thermometer.
The Warm Bulb Temperature: The lowest temperature that can reach by the evaporation of water alone.
To convert water from liquid to vapor, energy must be available. The cooler’s air gives off heat energy that evaporates water. The air passes through the cooler at a dry bulb temperature. This is then lowered and distributed back to the environment. Important to note is that the temperature difference between air and water does not affect the cooling effect of evaporation.
The humidity in the air is crucial for evaporative cooling. Evaporation takes place only when the humidity of air is below 100 percent. The greater the effectiveness of the evaporative coolant, the lower the humidity. The best way to assess the potential of an evaporative cooler is to compare the wet bulb temperature with the air’s dry. These two indicators can be used in order to calculate the relative humidity.
Although statistics indicate that the UK averages between 88-92%, depending on where you’re in the country, it still tends to be low when temperatures are high. This provides the ideal environment for an evaporative cooler, especially in food manufacturing and bakery, which have high temperatures.
What Is The Use Of Evaporative Coolers?
The main difference between a portable or fitted evaporative cooling system and one that is portable or fitted is the absence of exhaust hoses and outside condenser boxes. They do not provide ‘refrigerant or cooled air’ like air conditioners.
Evaporative cooling has a lot to offer. It can cut your running expenses by as much as 90%. Furthermore, it is one of the most eco-friendly solutions on the market.
How to Maximize Your Evaporative Cooler Results?
It is crucial to ensure effective evaporative cooling by making sure that every cooling pad is fully saturated throughout the operation.
It is vital to find a reliable supplier who is familiar with your industry.
However, it’s important to remember that evaporative coolers may not be the right solution for everyone. They might even be inappropriate depending on the sector, environment, or location in which you want them installed. These are some of the restrictions that evaporative cools can’t be used in an appropriate manner.
- They are not recommended to be used in areas that are closed off or unventilated.
- After being filled with water they can only be used in unventilated areas. They will pump humidity in the area and cause mould.
