A brilliant alternative to more traditional cooling systems, evaporative cooling is one of the systems we specialise in here at Heritage. It is perfectly suited to a variety of different working environments, particularly large spaces like factories and warehouses. If you’re wondering how it evaporative works, read on.
At Heritage, we offer free site surveys. One of our Gas Safe engineers will visit your premises and quote the ideal heating or cooling solution for your needs – at no cost to you. To find out whether evaporative cooling is suited to your business, simply get in touch.
Evaporative cooling: how does it work?
If you’re looking for an energy-saving, efficient commercial cooling solution for your business, evaporative cooling could be the right option. But how exactly do evaporative cooling system work?
1. Water is evaporated
In an evaporative cooling system, cooling pads are continuously moistened by a water pump. These water-cooled pads are an essential part of the cooling process.
The heat used by an evaporative cooling system to evaporate water and turn it into water vapour is called latent heat. Liquid water changes state, becoming water vapour – which we cannot see. As it changes state, its absorbs some heat from its surroundings.
2. Air is cooled
Hot air from outside is drawn into an evaporative cooling system. This hot air is forced across the wet cooling pads by a motor-driven fan. Hot air being forced over the water-cooled pads accelerates the natural process of heat exchange.
During the heat exchange process, when the water in the evaporative cooling system changes into water vapour, some of the air’s sensible heat (heat we can feel) is transformed into latent heat (heat we can’t feel). This process is what causes the hot air to cool.
3. Cool air is circulated
Once cooled, the fresh air is then circulated throughout the building’s interior. In an evaporative cooling system, cool air is pumped around your building until it is exhausted.
Cool air is never recirculated in an evaporative cooling system. It is replaced by more cool air from your evaporative cooling, which continually draws fresh air from outside and cools it.
Benefits of evaporative cooling
Now you know a bit more about how an evaporative cooling system works, you might wonder: what benefits does evaporative cooling technology offer?
- Air quality: Because the system continually draws fresh air in from outside, instead of recirculating the same increasingly stale air, the interior air quality of your building improves – which will also reduce the spread of viruses.
- Energy saving: With efficient design, evaporative cooling uses around 90% less energy than some traditional cooling systems. Better for the environment – and better for your energy bill too.
- Doors and windows can be kept open: Evaporative cooling maintains its efficiency even when large doors and windows are left open – ideal if you operate from a warehouse or factory and need to open bay doors for loading.
- Maintenance: With fewer moving parts, evaporative cooling is easier and cheaper to maintain than many other systems. Heating and cooling experts, like us, can keep your unit running at optimum levels for many years to come.
