Expansion cooling system

A cryogenic cooling system for a computational facility, comprising:

• a set of facility fluid supply lines at ambient temperature;
• a set of facility fluid return lines at ambient temperature;
• a set of fluid compressors that pressurize a working fluid between the set of facility fluid return lines and the set of facility fluid supply lines;
• a set of aftercooler heat exchangers fluidically coupled to the set of facility fluid supply lines and thermally coupled to a heat sink;
• a set of insulated housings wherein an interior of each insulated housing in the set of insulated housings is configured to accommodate a set of computational components, the computational components requiring cryogenic cooling;
• an inlet manifold disposed at each insulated housing of the set of insulated housings, and configured to be connected to the set of facility fluid supply lines at ambient temperature;
• an outlet manifold disposed at each insulated housing of the set of insulated housings, and configured to be connected to the set of facility fluid return lines at ambient temperature;
• a fluid bus in the interior of each insulated housing of the set of insulated housings, configured to carry the working fluid between the inlet manifold and the outlet manifold;
• a set of component heat exchangers fluidically coupled to the primary fluid bus and thermally coupled to the set of computational components;
• and
• a set of energy extracting fluid expanders disposed at each insulated housing of the set of insulated housings and coupled to the primary fluid bus,
• wherein the set of energy extracting fluid expanders are configured to cause cooling by expansion of the working fluid therein.