Cooling and energy recovery system for data center server computers

A cooling chassis assembly for electronic equipment, comprising:

• a sealed server chassis configured to house electronic equipment including one or more heat-generating components;
• an exhaust pipe configured to direct heated gas from the sealed server chassis to a dual-pipe heat exchanger;
• a supply pipe configured to return cooled gas from the dual-pipe heat exchanger to the sealed server chassis;
• at least one internal flow path configured to direct the gas over and around the one or more heat-generating components;
• and
• at least one hermetic wire pass-through configured to permit an electrical line, a control line, a data line, or an optical line to pass through a boundary of the sealed server chassis while maintaining pressure integrity of the sealed server chassis.

A method of cooling electronic equipment and recovering energy therefrom, comprising:

• housing electronic equipment in a sealed server chassis;
• circulating gas heated by the electronic equipment from the sealed server chassis through an inner pipe of a dual-pipe heat exchanger and back to the sealed server chassis in a closed-loop or substantially closed-loop flow path;
• circulating nitrogen through an annular space between the inner pipe and an outer pipe of the dual-pipe heat exchanger such that heat is transferred from the gas in the inner pipe to the nitrogen in the annular space;
• rotating an inner screw turbine disposed within the inner pipe using flow of the gas through the inner pipe;
• and
• generating electrical energy from rotation of the inner screw turbine.