Abstract: A computer data center having multiple open computer hardware storage racks. Each rack includes multiple computer hardware components horizontally rack-mounted in a front side of the rack, and a heat exchanging unit vertically mounted to a back side of the rack. A first cooling circuit interconnects the heat exchanging units of at least some of the computer hardware storage racks. At least a first rack and a second rack are arranged back to back in the computer data center, with a first heat exchanger unit of the first rack facing a second heat exchanger unit of the second rack.

Abstract: A computer data centre having multiple open computer hardware storage racks. Each rack includes multiple computer hardware components horizontally rack-mounted in a front side of the rack, and a heat exchanging unit vertically mounted to a back side of the rack. A first cooling circuit interconnects the heat exchanging units of at least some of the computer hardware storage racks. At least a first rack and a second rack are arranged back to back in the computer data centre, with a first heat exchanger unit of the first rack facing a second heat exchanger unit of the second rack.

Abstract: The present invention relates to a method for operating a data centre, which is adapted to house a multiplicity/plurality of racks being designed to provide storage space for IT equipment. The data centre is equipped with cooling means in order to provide dissipation of heat being generated by the IT equipment. Data centre operated according to the present invention have a power utility efficiency (PUE) of at most 1.3, preferably at most 1.2, more preferred at most 1.15, in particular at most 1.1.

Abstract: The present disclosure relates to a mobile data centre unit, which is adapted to house at least one rackbeing designed to provide storage space for electronic equipment. The mobile data centre unit is equipped with passive cooling means in order to provide dissipation of heat being generated by the electronic equipment.