Patent attributes
A cooling system for an electronic rack of a data center, such as an IT rack or PoD, is disclosed. The system includes a coolant distribution unit (CDU) coupled to a rack manifold of the electronic rack through a fluid cooling loop. The CDU supplies cooling fluid that is distributed to the IT rack or PoD, and receives returning warm/hot fluid from the IT rack or PoD. The system further includes an enhancing cooling unit to receive a first part of a first distributed portion of the cooling fluid and to further cool the first part of the first distributed portion of the cooling fluid to a lower temperature value than the one of the supplied cooling fluid through an enhancing cooling loop. The system further includes a first external cooling unit connected to the CDU through a cooling fluid loop to supply the cooling fluid to the CDU. The system further includes an air cooling unit to receive a second distributed portion of the cooling fluid and to use the second distributed portion of the cooling fluid to cool the airflow for IT rack or PoD. The system is arranged in five portions, and fluids and cooling units are shared among the portions within distributing loops.
