Cooling solutions for critical environments
Uniflair, a world leader in the design, production and sale of precision air conditioning
units, industrial chillers and modular access floors, supplies reliable and efficient solutions
for technological and industrial applications in advanced service industries.
Excellence in quality and energy efficiency is Uniflair’s key objective, carrying out
continuous improvement processes using the latest technology available on the
market and developing solutions using its own research and development centre.
Uniflair and Interxion are collaborating together on the the server rooms has led to an adaptation of the
development of cooling infrastructures in data centres and infrastructure and a change in design mentality.
are determined in the development of both flexible and
reliable solutions with low energy consumption to reduce to Cooling systems have taken on a strategic importance
a minimum the TCO. Every single project is analysed and since they represent one of the main elements needed for
studied in order to implement the best solution, sharing correct operation of the blade servers. There are two main
experience and using the Uniflair Research Centre for testing. conditions which need to be guaranteed:
The subject of sustainability regarding infrastructures is 1. the correct temperature (between 20-
rapidly becoming one of the main features discussed when 22°C) in the suction section of the
providing solutions for technological blade servers
applications.
2. cooling even during emergency
One of the key elements of precision air conditions. If the cooling process
conditioning is that of reducing fan stops, high density equipment will
energy consumption since this results over-heat in a matter of seconds.
in an immediate energy saving. The
best results are achieved by using EC When making this choice, it is
backward curved blade fans which necessary to consider the following
result in energy savings of up to 35- general aspects: modularity and
40% compared to traditional systems. scalability, energy efficiency and TCO,
flexible solutions, open and simple
Another important element is the use of “extendibility”, optimum commissioning
systems which are able to partialise the and maintenance.
cooling capacity efficiently. For this
reason solutions are preferred which Maintaining correct pressurisation of the
feature tandem scroll compressors floor space is a key factor in ensuring
complete with an integrated electronic cooling, efficiency and reliability.
expansion valve in the microprocessor The pressurisation must be guaranteed
control. These features result in energy for the entire lifetime of the server
savings of between 8 to 16%. room which may be upgraded and
changed over time.
Moreover, free-cooling systems are available which are able
to cool the equipment using the external environment. The AFPS system (Automatic Floor Pressurization System)
Obtaining energy savings of up to 40% depending on the enables automatic adjustment of the airflow of CRAC
external climatic profile. Units featuring this system can be according to the servers installed and air flow demand.
connected in parallel, exploiting the stand-by units and With this solution it is possible to significantly reduce the air
therefore maximising energy recovery: intelligent free-cooling. flow issued by the perimeter units according to the servers
The increase in the loads which need to be dispersed within installed, therefore creating significant energy savings.
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