This summer, high temperatures do not give respite. As soon as one heat wave passes, the next one is already on the starting grid, ready to go. So look for efficient cooling systems and, where possible, caring for the environment has become a priority. Besides, if only they were better as the temperature risesIt would be almost like a dream. And the best thing is that this dream seems to be something feasible if we look at RACU systemdeveloped scientists from the University of Cordoba as part of the We District project.
This is a refrigeration unit use hot air to keep the building cool. This makes it the most desirable solution at the temperatures we are experiencing in this heat wave. First of all, because what was seen, what was seen, will not be something isolated in the future.
It works by combining two air purification technologies: adsorption wheel and direct evaporative cooling. The latter, much more efficient in hot climates, allows the heat to be used to produce a cooling system. But what else do we know about this handy invention?
Cooling system that takes advantage of high temperatures
During these recent heatwaves, we saw that in many places the temperature turned out to be much higher than the mercury column indicated. This is due to the fact that in some places high air humidity percentage evokes a warm sensation.
This is inconvenient if we want to keep ourselves in the cold, so RACU has a desiccant to start with, which is responsible for remove moisture from the air. It then exchanges heat with the outside air through indirect evaporative cooling, which allows it to cool the air circulating inside the building. The result is a cooling system. the efficiency of which increases with temperature. BUT win win.
In fact, as explained in a statement from the University of Córdoba, the experimental results obtained show that “at 9 a.m. at an outdoor temperature of 25 ° C, the RACU system is able to cool the air to 16 ° C, at 42 ° C at 6 p.m. it cools down to 17 ° C With low power consumption“.
But where to get the energy for this? Heat exchange? Typically, refrigeration systems use polluting energy sources such as gas or oil. However, in this case hot water is used from 100% renewable district network. Again, it uses heat to cool rooms. Faced with such ingenuity, the ancient Romans would have been very proud.
Beyond the waves of heat
Naturally, this cooling system is very effective in cooling rooms in hot weather. Plus, it does it in a 100% renewable way. But in fact, its benefits go far beyond that.
First, remove the use from the equation coolantswhich highly pollute the environment and are hazardous to health in case of leakage.
In addition, using only outside air, better ventilationvery beneficial in times of COVID-19.
And if all that wasn’t enough, it’s proven that power consumption RACU four times less than a conventional refrigeration unit. There are plenty of reasons to trust him, although he is still in the experimental stage. It is clear that in the face of the coming future, we need such systems to help us mitigate the effects of climate change. All of this, of course, without forgetting that nothing will be enough unless we take action to stop it at the same time.
Source: Hiper Textual
