5 Data Center Cooling Solutions

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Solutions for data center cooling are constantly coming onto the market that promise more performance and efficiency. 

Energy efficiency, management and cooling are complicated but necessary. Parts of maintaining and setting up data centers.  In an effort to optimize energy use, vendors and industry associations have invested a great deal of research into hardware development, data center design, and best practices.

Modern cooling technologies are used when a new data center is to be equipped, or retrofitting the hardware of the existing data one. which means, it will also require an upgrade in the cooling solution.

Cooling Solutions for Computer Rooms

Devices in this category ensure constant air circulation, temperature and humidity in the data center, as well as monitoring these stages. IT professionals have a number of options for setting up such servers room air cooling systems, also known as CRACs (Computer Room Air Conditioning).

The most common approach is to use a CRAC to cool aspirated air and then expel it through a raised duct. This creates cold aisles that run through the racks. Their cold air absorbs heat before it flows out again on the back of the rack.

Servers Immersion Cooling Solutions

Immersion cooling is one of the most modern cooling technologies for data centers. The hardware is immersed directly in dielectric liquids. This liquid is thermally conductive and uses absorption and evaporative cooling to extract heat from the infrastructure.

This form of liquid cooling is more efficient: it uses 99 percent less electricity than conventional data center cooling methods. Depending on how much coolant the user uses, this can still cost a lot of money. Most such systems consist of several components: pumps, external coolers, and evaporative cooling devices.

Open bath systems, including tubs in which hardware is completely immersed in the dielectric coolant, are the most cost-effective variant of immersion cooling. Their advantages are the almost noiseless operation, less need for air circulation and low dust development in the data center.

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Cold - Warm Aisle System

The concept for a cold – warm aisle data center cooling solution is best considered and implemented during the design process. The server racks are arranged in such a way that the air flow passes through them as efficiently as possible and creates a feedback loop for cooling and heating the air. 

The concept provides that the cold air flows in one direction and the heated air out in the other. In most data centers of this type, cold aisles lead away from the cold air output of the air conditioning system and warm aisles lead to the return ducts of the air conditioning system.

Another component of cold-warm  aisles is containment. It prevents air currents with different temperatures from mixing. Originally, the cold aisle containment was achieved by installing plexiglass or vinyl panels; 

Nowadays it’s possible to use the ceiling and floor plenum with variable ventilation systems in order to prevent the mixing of warm and cold air.

Free Cooling | Data Centers Cooling Solutions

Another technology that can be used to regulate the room temperature is Free Cooling. Instead of mechanical cooling via a data center chiller, it uses naturally cooled air or water. These systems filter, humidify and pump coolant from a source in the vicinity. They are also called economizers.

Of course, this type of cooling is only an option if the location of the data center has been chosen with regard to the cooling system and accordingly naturally cool air and water are available.

There are also data centers that supply themselves with cold water from nearby lakes, rivers or seas, instead of generating cold water with a cooling system. These include, for example, the Green Mountain data center in Stavanger (Rogaland), Norway and the Nautilus Data Technologies floating data center in Vallejo, California.

By using these systems, companies can extend the life of other existing cooling systems in the data center, ultimately reducing the overall maintenance costs and energy consumption of the data center.

Adiabatic Cooling | Data Centers

The adiabatic cooling of a data center works with the air pressure found in the data center. It uses evaporative cooling by forcing warm air through damp mats, which cool the air and pump it into the building.

This technique is based on the laws of thermodynamics, which state that hot air rises above cooler air due to its lower density.

Adiabatic cooling helps companies to cool air effectively and to regulate the temperature in a power-saving manner by varying the air flow. In this way, more than 40 percent of electricity costs can be saved.

Some facilities also have adiabatic heating, which provides an energy-efficient way to increase the humidity in the data center. Common types include evaporative, ultrasonic, and atomizing cooling devices, each of which requires different device components.

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