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About Data Center Cooling Technology you are get to know


Data center heat dissipation is a huge market and is expected to be worth about $8 billion by 2023. With the rapid growth of power density, many companies are investing heavily in new cooling technologies to ensure that they can take advantage of the next generation of computing power processors.

High-density deployment of modern data centers has intensive power requirements, but most of the power is not actually servers and computing devices themselves. Instead, it enters cooling equipment that prevents these systems from overheating.

Given the importance of cooling data centers, it is worth investigating some common terms used in this field:

Calibration Vector Cooling (CVC): A data center cooling technology designed specifically for high-density servers. It optimizes the air flow path through the equipment, so that the cooling system can manage heat more effectively, thereby increasing the proportion of circuit boards in each server chassis and reducing the use of fans.

Chilled water system: A data center cooling system, usually used in medium to large data centers, uses chilled water to cool air introduced by the air processor (CRAH). Water is supplied by a chiller located somewhere in the facility.

Cold channel/hot channel design: A common form is to use alternate "cold channel" and row data center server rack deployment of cold channel function in front of the rack cold intake, and hot channel by "hot channel". Hot air is discharged from the back of the rack. The hot passage discharges hot air into the air-conditioning intake for cooling, and then into the cold passage. Empty baffles are filled with baffles to prevent overheating or waste of cold air.

Computer room air conditioning (CRAC): One of the most common functions of any data center, the CRAC unit is very similar to the traditional air conditioning driven by a compressor, which sucks air into a refrigerant filled cooling device. They are inefficient in energy use, but the equipment itself is relatively cheap.

Computer Room Air Processor (CRAH): The CRAH unit, as part of a wider system, involves a chilled water plant (or cooler) somewhere in the facility. Cooling water flows through the cooling coils inside the equipment, and then air is extracted from the outside of the facility using a regulating fan. Because they work by cooling the external air, CRAH devices are more efficient when used in places with lower annual cooling temperatures.

Critical cooling load: Represents the total available cooling capacity (usually expressed in power watts) of the data center layer for cooling servers.

Direct to Chip Cooling: A data center cooling method that uses pipes to deliver coolant directly to the cold plate, which is combined with the processor of the motherboard to dissipate heat. The extracted heat is fed into the cooling water cycle and sent to the facility chiller.

Evaporative cooling: Managing temperature by exposing hot air to water, which causes water to evaporate and absorb heat from the air. Water can be introduced in the form of atomization systems or wet materials such as filters or mats. Although the system is very energy-efficient because it does not use CRAC or CRAH devices, it does require a lot of water. Cooling towers are usually used to promote evaporation and transfer excess heat to the external atmosphere.

Free cooling: Any data center cooling system uses the external atmosphere to introduce cooler air into the server instead of continuously cooling the same air.

Immersion system: An innovative new cooling solution that immerses hardware in non-conductive, non-flammable dielectric liquids.

Liquid cooling: Any cooling technology that uses liquid to expel heat from the air. Increasingly, liquid cooling refers to direct Cooling Solutions that expose server components, such as processors, to liquids to cool them more effectively.

Elevated Floor: Frame that elevates the data center floor to the top of the concrete floor of a building. The space between the two is used for water-cooled pipes or increased air flow. Although power and network cables have been used in this space, newer designs and best practices put these cables on top.

With the increasing demand for electricity in data centers, new cooling technologies will be needed to maintain the maximum operating capacity of the facility. Data centers can continue to provide reliable services at a high level of uptime through the combination of proven real methods such as cold/hot channel deployment and the latest innovations such as direct chip cooling.

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