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Redundant Mechanically Cascaded Refrigeration System for Electronics Cooling Application Disclosure Number: IPCOM000013921D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue



Now that the limitations of bulk CMOS scaling are imminent, other means to enhance circuit performance are being investigated. One of those means is to operate the circuits at low temperatures. Towards this end, standard vapor compression refrigeration systems are being used to cool central processors in computer systems, namely the high end of IBM's S390 servers. To assure continuous computer operation in the event of a refrigeration system fail, redundancy is incorporated by using a dual circuit evaporator and two Modular Refrigeration Units (MRUs) as shown schematically in figure 1. MRU #1 MRU #2 Condenser Condenser