Page 48 - Climate Control News Dec-Jan 2020

Data Centre
ABOVE AND RIGHT: The air handling system cools without chillers by creating two airstreams which pass through a series of heat exchangers.
THE CORK INTERNET Ex- change (CIX) data centre in Ire- land has installed an innovative adiabatic cooling solution from Condair ME which has generated huge energy savings.
CIX has installed indirect air-to- air with the Condair ME evapora- tive cooling system to maintain the temperature across its data halls without using any chillers.
The solution uses 75% less ener- gy than a traditionally cooled data centre.
The EDPAC air handling system cools without chillers by creating two airstreams, one internal and one external.
The internal airstream circulates air to and from the data halls and the external airstream draws in, then vents, ambient outside air.
Both airstreams pass through a
series of heat exchangers to transfer cool thermal energy from the exter- nal to the internal airstream, with- out either physically mixing.
Four AHU modules, each deliv- ering up to 400kW of cooling, have been installed above the data halls at CIX, alongside four Condair ME evaporative coolers.
While the outside weather re- mains below 21°C, air-to-air cooling alone is sufficient to maintain the required data hall condition.
When the outdoor tempera- ture rises above this, the Con- dair ME evaporative coolers op- erate to provide up to 300kW of cooling to each AHU.
The expected electrical demand across the year is just 12kW per 400kW AHU module, including the electrical consumption of the Con- dair ME evaporative humidifiers.
Energy efficient cooling without chillers
Critical support during change-overs
AIRCON RENTALS RECENTLY responded to an urgent client request, requiring immediate re- dundancy whilst critical services were taken of- fline for repairs.
Following consultation, Aircon Rentals sup- plied multiple 600kW air cooled chillers, 550kVa generators, bulk fuel tanks, pumps, cables and switchboards.
The client's requirements included:
• N+1 configuration for both chilled water and
power generation,
• the system needed to be independent of any
base building services,
• be autonomous, starting and stopping under
specific conditions,
• have alarming and remote monitoring for
both client and Aircon Rentals technicians to
examine the onsite conditions,
• be able to run for at least 36 hours under full
load without refueling, and
• access to plant room to be maintained to work
on existing chillers.
The Aircon Rentals solution was able to re- solve all requirements and deployed a system that included automatic start on either chilled water over temperature alarm or base building
chiller failure. When either event occurred, the generator automatically started, providing pow- er to the associated chiller.
The pump, chiller and necessary valving auto- matically opened and automatically ran to sup- ply chilled water to the system.
For over 20 years, Aircon Rentals has been pro- viding continuity of critical services for a variety of clients in an array of difficult locations.
Specialising in highly engineered solutions, clients look to Aircon Rentals as they have a proven track record and reputation that is syn- onymous with service, quality, suitability and professionalism.
Aircon Rentals boasts one of the most com-
prehensive product ranges in the industry, with over 6000 individual products, supporting func- tions such as temperature control and power generation.
Essential services and difficult environments are areas where Aircon Rentals thrives. Data centre shut downs, N+1 redundancy, planned maintenance and chiller change-overs have be- come an area of specialty.
Providing the precise solution for your critical environment to ensure continuation of service, is Aircon Rentals specialty. For information on the range of products available for 24hour, seven day a week availability, consult www.aircon. com.au or phone 1800 626 996
Essential services
and difficult environments are Aircon’s specialty.
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