As more commerce moves online and the "internet of things" takes shape, large data centers proliferate. Each hosts hundreds or thousands of computer servers – the backbone and guts of the internet -- which generate a lot of heat as they hum. Carnot Refrigeration, a company from Trois-Rivières, Québec, has a solution for handling all that heat, while saving energy and replacing greenhouse gases as refrigerants.
In September 2014 a Bell Canada facility became the first data center in the world to use CO2 cooling, when the AQUILON TM system designed and manufactured by Carnot went on line.
Before September half the energy consumed at the facility, in Ottawa, was used for cooling around the servers. Since then, cooling energy use has been cut by 70% through a “free cooling” process which uses cold – and free -- outdoor air do some of the work. Data centers use enormous amounts of power. According to a 2014 report, US data centers annually consume 91 billion kilowatt-hours of electricity, enough to power all the households in New York City twice over.
Key people from Carnot Refrigeration recently visited Chicago to meet with data center operators and engineers, as well as to visit the AHR Expo. CO2 refrigeration has been accepted in Europe for use in places like food warehouses and supermarkets, and Carnot Refrigeration is pioneering its use in North America.
To learn more about Carnot Refrigeration, click HERE.