Freecooling: How Natural Cooling Works

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In this article we will talk about cooling, or rather, about one of the popular technologies called free cooling .

Free cooling means free cooling without the use of specialized coolers, compressors and other "gluttonous" equipment. De facto, free cooling is most often understood as natural cooling of IT equipment or entire rooms due to cooler air from the street. This is where the main disadvantage of the method comes from: cooling becomes possible only if the temperature "overboard" is significantly lower than what needs to be achieved in the cooled room.

More about freecooling: scope of application of the technology

In order to understand the principle of freecooling, first of all, it is necessary to understand wordpress web design agency what a vapor compression refrigeration cycle is and how machines based on it work. The heart of the system is special tubes into which a liquid with a low boiling point is pumped. Thanks to this, it becomes possible to significantly reduce the resource consumption of the refrigeration machine: the boiling liquid, due to the pressure difference, “carries” heat from the room and produces heat exchange.



As a rule, such devices do not work "alone". When the outside air temperature rises, an effective air conditioning system comes into play. And if it gets colder outside and there is no need for it, it will automatically turn off. This approach allows you to effectively maintain the required temperature in the room and save electricity at the same time.

How Free Cooling Works
The #CloudMTS data centers are equipped with precision air conditioners, which allow the temperature in the machine rooms to be monitored and adjusted with precision to the degree.

It would seem that the need for effective heat dissipation is present only in the warm season. However, in some cases, natural heat dissipation may be insufficient due to the high volume of so-called heat surplus. Switch rooms, rooms with server equipment and other similar objects are capable of giving off more heat than the "walls" can remove even in the cold winter. A constantly functioning free-cooling system is the best option for maintaining the temperature at the desired level. If it is -10 outside, there is no point in turning on an energy-consuming air conditioner - it is enough to open the "window".

The principle of free cooling and its types

There are three main groups of free-cooling systems depending on their operating principle and internal structure: direct, indirect and based on a refrigeration machine ( chiller ). Let's look at each of them in more detail and highlight the main features of each option.