Betsy Ricker for Zondits, September 10, 2015. Image credit: Creative Commons
CO2-based refrigeration has been implemented with success at ice rinks and in refrigeration applications, and it is now moving into the data center cooling sector. A new project was recently implemented at Bell Canada’s Ottawa data center that utilizes CO2 rather than the more traditional refrigerants. Similar projects implemented in data centers in China have claimed energy savings of 25% or more over traditional cooling systems.
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- As opposed to water cooling, CO2 poses no danger to electrical equipment or cabling as it is electrically benign
- CO2 has zero-ozone depleting potential combined with low toxicity
- CO2 has seven times the cooling capacity of water per kilogram, reducing volume flows with smaller diameter distribution pipe work.