HOW CHILLED WATER SYSTEMS MEET DATA CENTRE AVAILABILITY AND SUSTAINABILITY GOALS
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The data centre industry continues to develop larger data centres to meet capacity demands , while at the same time taking steps to significantly reduce the impact of data centres on the environment . Companies like Vertiv design with sustainability in mind , developing data centre solutions that help meet the needs of the present without compromising the ability of future generations to meet their own needs .
Cooling systems , and in particular , chilled water systems can play an important role in this evolution . They allow owners and operators to develop new data centres that efficiently address both direct and indirect emissions , which are factored into the total equivalent warming impact ( TEWI ) metric .
Today ’ s chilled water systems reduce direct emissions by limiting the amount of refrigerant used compared to other technologies and enabling the use of new , greener refrigerant types available in the market . These systems also reduce
indirect emissions when they adopt new technologies and the system is optimized via best practices regarding system control , which are described in this paper .
The ability of a chilled water system to drive down both direct and indirect emissions can help critical facility operators to achieve a lower TEWI . Chilled water systems can also effectively balance water and energy usage for efficient cooling systems to support a low water usage effectiveness ( WUE , as defined by the Green Grid ).
The combination of low TEWI and low WUE makes chilled water systems one of the most sustainable choices for data centre thermal management in terms of energy and water efficiency . These systems have been adapted to follow the evolution of data centres to non-raised floor designs and can help facilitate the transition to liquid cooling . p
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