When the heat arrives and temperatures begin to rise, it is inevitable that the stuffiness will also be felt inside industrial warehouses. For this reason, it is important to decide in advance how to air-condition the various work environments and ensure a healthy and cool place for your employees during the summer months.
Industrial evaporative coolers are the ideal solution for cooling large spaces: thanks to the natural principle of adiabatic transformation, they manage to "cool" the air without using refrigerant gases and saving a large amount of electrical energy.
When evaluating a cooling system for large industrial environments—warehouses, logistics centers, production facilities, livestock farms, mechanical workshops, or hangars—one of the most frequently asked questions is: "By how many degrees can an evaporative cooler lower the temperature?"
It is a crucial question, because the choice of cooling system concerns not only operator comfort, but also production continuity, energy consumption, air quality, and, of course, operating costs.
In this article, we analyze in detail how much it can actually lower the temperature, what factors affect performance, and under which conditions it represents the most efficient choice compared to traditional air conditioning.
To accurately determine the temperature reduction that the cooler can guarantee, it is important to consider some fundamental aspects. The absence of refrigerant gases and the low energy consumption used make the cooling process dependent on certain external factors, first and foremost the relative humidity of the air and secondly its temperature.
Humidity: the factor that determines temperature reduction
As mentioned in the previous lines, the efficiency of an evaporative cooling system depends on external climatic conditions, first and foremost the percentage of humidity present in the air.
As we know, adiabatic cooling works through the natural principle of water evaporation: hot air drawn from outside passes through water-soaked honeycomb evaporative pads, releases part of its heat to the water (which then evaporates), and becomes enriched with a percentage of humidity, to be introduced into work environments at a more comfortable temperature.
Evaporative cooling:
what it is, how it works
A natural and sustainable principle that allows you to cool the air in medium to large environments for fatigue-proof workplaces!
Based on this principle, it is easy to understand how an incoming flow of dry and hot air (therefore lacking humidity) is much easier to cool than hot air rich in humidity.
With this premise, we can state that, passing through an evaporative cooler, external air at 32°C with a humidity level of 45% can cool by as much as 8-10°C, entering the work environment at a temperature of approximately 24°C.
As the humidity rate increases, efficiency decreases. This means that hot air, already rich in high humidity, will be enriched with a smaller amount of the latter, cooling overall to a lesser degree.
To summarize the concept: the hotter and drier the day, the higher the cooling system's performance will be.
The strong dependence on external climate means that a cooler cannot guarantee a constant temperature throughout the entire summer period. It is important to consider that, despite the small variations in terms of efficiency that may occur, these air conditioning systems are still able to make temperatures comfortable inside work environments, without excessively cooling the air and above all without drying it out.
Evaporative cooling vs air conditioning
Drier air, such as that from a traditional air conditioner, feels immediately colder, therefore apparently more comfortable, but risks creating, over time, an unpleasant sensation of throat dryness, which can compromise employees' health.
The air introduced by an evaporative cooler is less cold and certainly less dry thanks to the percentage of humidity it has absorbed during the adiabatic process and therefore much healthier for staff well-being.
Coolers, in fact, help to regulate humidity levels inside warehouses and large industrial and commercial areas, avoiding that unpleasant sticky sensation on the skin and promoting concentration, safety, and productivity.
Finally, they are suitable in environments where, due to logistical requirements, it is difficult to keep doors and windows constantly closed, as occurs with traditional air conditioning. Adiabatic cooling systems, therefore, do not decrease their efficiency with open openings and guarantee a constant renewal of stale air inside workplaces.
Evaporative cooling: sustainability and energy savings
As you will have understood, it is an ideal system for cooling industrial warehouses, storage facilities, workshops, and commercial environments as it has very low energy consumption.
The electrical energy used is, in fact, dedicated solely to operating the fans and is equal to 20-25% compared to that used by traditional air conditioning.
Furthermore, it is a completely natural and sustainable system, as no refrigerant gases are used for its operation, but only water which, at the end of its use, is returned to the environment. The ideal solution for trying to be as sustainable as possible and starting now to look toward a future more attentive to the Planet.
The air introduced by an evaporative cooler is less cold and certainly less dry thanks to the percentage of humidity it has absorbed during the adiabatic process and therefore much healthier for staff well-being.
Coolers, in fact, help to regulate humidity levels inside warehouses and large industrial and commercial areas, avoiding that unpleasant sticky sensation on the skin and promoting concentration, safety, and productivity.
Finally, they are suitable in environments where, due to logistical requirements, it is difficult to keep doors and windows constantly closed, as occurs with traditional air conditioning. Adiabatic cooling systems, therefore, do not decrease their efficiency with open openings and guarantee a constant renewal of stale air inside workplaces.
Opinions on evaporative cooling
Hear what those who have chosen to rely on an evaporative cooler have to say
"An evaporative cooler, designed to measure for our needs, was the optimal choice for us, as it aligns with our company philosophy.
Our concern was drying out the dough due to an overly intense airflow.
We are truly enthusiastic about the result achieved; we managed to lower the temperature inside the work areas from 35 to 28°C and our staff can work in a comfortable environment without experiencing heat fatigue."
Giovanni Da Re - Owner of Forno Da Re
"Those who were unfamiliar with this system strongly advised me against it, convinced that it was not possible, with such low electrical power, to generate the cooling capacity to cool our facility.
I am someone who believes in innovation; I trusted those who proposed it to me and the result is evident (and felt!).
This is an absolutely efficient system that I would recommend to anyone who has the same need we had."
Silvano Tonon - Owner of C.M.S
Conclusion
Considering that the performance of an industrial evaporative cooler can vary based on multiple factors such as air humidity, air changes, sizing, airflow, and building configuration, we can state that the adiabatic system can lower the temperature from 8°C up to 10°C, significantly improving operator comfort and air quality.
With reduced consumption, simple installation, and frequent air exchange, it represents the ideal solution for cooling large industrial environments.
Do you want to understand if evaporative coolers can be the ideal solution for your industrial warehouse? Discover our product range or contact us for personalized technical consultation.
