What is the purpose of adiabatic cooling

How does adiabatic cooling work

Adiabatic evaporative cooling is powerful

The Evaporative cooling you know from your everyday life: When you blow on damp skin, you immediately feel the cooling of the skin through the evaporation. The cooling effect is stronger if, for example, you feel a wet T-shirt cold on your body in the wind. In this case, the T-shirt is the carrier for water that is evaporated from the air flowing past. The cooling you feel is evaporative cooling. Put simply, the enormous amount of heat that is necessary for the evaporation of the water is withdrawn from the air flowing past.

Evaporation removes a lot of heat from the air

Evaporative cooling is a very powerful type of cooling. The supply air is not cooled with cold water, but by dissipating the enormous amount of heat energy required to evaporate the water. To get a feel for the amount of energy needed to transition from liquid to gaseous state, imagine turning a liter of boiling water completely into steam in a saucepan on your electric stove. It takes about five times as long to evaporate as it took to boil the cold water before.

But how can the large amount of energy that water needs to become gaseous be used to cool air?

In the CoolStream, like a wet T-shirt in the wind, no additional heat energy is added to evaporate the water. Put simply, this thermal energy is taken from the air flow itself, i.e. the air is cooled.

The hotter the day, the higher the cooling capacity

Conventional air conditioning units have too little cooling capacity or even fail on the hottest days of all times, as the design of conventional systems for extreme weather conditions would be very expensive.

It's different with the CoolStream: the hotter and drier the outside air, the faster the water evaporates in the CoolStream. The faster the water evaporates, the more heat energy is extracted from the air by the evaporative cooling.

The cooling performance of the CoolStream increases naturally exactly when you need cooling most urgently. This applies to both the seasons and the course of the day. The failures on the hottest days known from conventional air conditioning with compressor systems are not an issue with the CoolStream.

"The air flowing through can be cooled down to 15 ° C in Europe and to 20 ° C in the Middle East."

Before the evaporative cooling, the outside air is initially hot and relatively dry, the air has a high proportion of tangible, so-called "sensible heat" shown in red. As the airflow sweeps over the water, water evaporates into the air. The heat energy required for evaporation is extracted from the air. The sensible temperature of the air drops continuously. The evaporated humidity absorbed by the air is also referred to as "latent heat". Since the total energy of the air-water system remains the same with this exchange of sensible for latent heat, this type of evaporation is also known as "adiabatic" designated.

When air conditioning with the CoolStream, in a second step after adiabatic evaporation, the latent heat is removed from the building with the air. The temperature in the building drops in the desired manner as a result of this heat dissipation.

In the Colt CoolStream, a special material with many small channels is used as a carrier for the water, through which the warm and relatively dry outside air flows optimally and without contact with drops in the water distribution system. When flowing through the wet carrier material, the warm air is greatly cooled by the removal of the heat of evaporation and can thus be used to air-condition a building.

ErP: All CoolStream system solutions are compliant with EU regulation 1253/2014, based on the ErP directive 2009/125 / EC