Which factors influence the efficiency of a data center?
A data center is assessed on the basis of its PUE value. The PUE value shows how much energy is necessary in order to ensure the operation of the data center. Aside from the actual data computers that consume pure electrical energy, HVAC installations are required in order to provide the energy to cool the computers. And devices are required for the actual computer cooling. There are various approaches to this energy conversion. There are direct systems, where the computers are cooled via an internal cooling circuit; cold water flows directly through the computers. Other models have a double-floor system – the cold air is blow into the data center area via double-floors, heated by the computers if needed and removed and cooled down by an exhaust air system.