Perimeter Cooling Technology

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Perimeter Cooling Technology
The continuous increase of data center usage is
leading the industry to increase the load
density per square foot of existing
facilities. High density (HD) IT load per rack
demands bringing the cooling source closer to
the heat load in contrast to room level air
cooling. For high density racks, the use of
In-Row Cooling systems is becoming
increasingly
popular.
In-row cooling can be the main source of cooling
for a data center or work jointly with perimeter
cooling in what is called a hybrid cooled room
level system. Also, hot or cold aisle containment
can be integrated with Perimeter Cooling and
used throughout the data center to reduce
the mixing of hot and cold air. Currently, there
has not been much work comparing the performance
of In-Row Cooling in open versus contained
environments.
Benefits of Perimeter Cooling Technology-
1. Availability
? Multi-functional Microprocessor Controller -
Allows the units to restart after a power
failure without intervention Allows for room
level redundancy with up to ten units operating
in a group User friendly navigation with
icon based displays to indicate mode of
operation as well as room conditions Allows for
communication with multiple Building
Management System
protocols.
2. Energy Management
? Building Management Systems - Units are
designed to work with the most common BMS systems
including BACnet and Modbus.
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? Network interface - Provides management by
connecting the device directly to the
network with a dedicated IP
address, avoiding the need for a proxy such as a
server. Management is available via Web browser,
Telnet or SSH. Notification features inform you
of problems as they occur.
3. Total Cost of Ownership
? Economization - Achieved by utilizing cool
ambient air during winter months to take
advantage of economizer hours and eliminating
compressor operation.
The entire concept behind using various
techniques to cool the data center is to prevent
the heated IT exhaust from mixing with the cold
air. The hot aisle and cold aisle containment is
a step above the perimeter cooling method. The
perimeter cooling method distributes cold
air under the raised floor tile with no form of
containment. Here large air conditioners work in
parallel pushing in the cold air and drawing out
the hot air. In such a situation, there is a
chance of hot air and cold air mixing to get
bring the temperature of the room to an average
temperature. This prevents the formation of hot
spots.