Evaporative cooling to reduce electricity consumption in data centres
Data centres are expected to grow steadily due to the constant digitalization of more and more aspects of our daily lives. They receive, treat and dispatch huge quantities of data in extremely short computational time spans: in fact, they are designed to do humongous processing of information in factions of milliseconds because their outcomes, be they a GPS position or a financial transaction, are required at once. High computational capacity translates into high quantities of electric energy used by data centres, currently at around 3+% of worldwide energy production; and where there is a lot of energy being used, there is also the side effect of a lot of heat to be dissipated otherwise the data centre could overheat and malfunction. Cooling is essential for data centres to reject the heat they generate. Since cooling requires energy (around 40% of the total data centre’s input energy), it must be done in a sustainable way to minimize its impact on the data centre’s overall energy draw.
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