Cooling Solutions

Cooling, maintaining the climate of computing and network equipment is becoming increasingly important and expensive as the capacity of data centers, the capacity of individual telecommunications cabinets and server rooms racks grow.

Data Center Climate

The data center climate subsystem is a set of measures that ensures continuous uninterrupted operation of the data center, regardless of external conditions.

Cooling of high-load racks with IT equipment requires special development and application of precision technologies for maintaining temperature and humidity conditions, ensuring reliability and emergency operation of the cooling system.

When designing modern computing centers, AVECTIS LTD uses various technologies for building climate systems:

floor panel air distribution;
inter-cabinet air conditioning;
open architecture using split systems or precision air conditioners.

According to the type of heat carrier used, the systems are divided into DX (systems with direct cooling, freon-filled) and liquid (based on chiller, coolant, refrigerant), other systems based on the principle of complete free-convection cooling, natural cooling with intermediate coolant, etc.

Cooling technologies. Aisle Systems

Hot Aisle. As a rule, it is used in premises where there are several zones of different heat load, while with the help of panels and constructs, heat is concentrated in the enclosed zone and removed centrally either to the air conditioning zone, or captured by the inter-cabinet air conditioners built into the complex.

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Cold Aisle. A characteristic system for vertical (panel floor) air conditioning, as well as in small rooms without the constant presence of service personnel.

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Panel floor air distribution

raisedfloorcooling_avectis

It is used for moderate thermal loads per rack (7–8 kW) and large areas for constructing a data center. The system uses panel floor space and panel floor grilles (including those with controlled fans) as air ducts. There are options for use as air ducts and dropped ceilings.

Inter-cabinet air conditioning

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Inter-cabinet air conditioners, regardless of the coolant, perform one function: they take the generated heat from the hot zone, capture it and release prepared cold air into the consumption zone. These systems work on the principle of "cold to the required zone on request".

The design of the inter-cabinet systems makes it possible to divert from 20 to 40–60 kW from the local cabinet (in the case of a closed process).

Chillers

Chiller (chiller means refrigerating machine for liquid cooling) systems, they are also refrigerated liquid or chill liquid systems are the most efficient with a data center capacity of more than 80 kW.

Experience has shown, such systems have a very important advantage - the possibility to remove external units (chillers) to any distance, while freon systems are extremely limited in this option. The piping configuration does not matter in the chiller system.

When developing a system for maintaining the data center climate, fire extinguishing, emergency ventilation and monitoring subsystems for air conditioning of equipment and the environment are also being developed.