Abstract: Server baskets for use in immersion tanks are described herein. In one example, a server basket may be configured to receive a computer server. The server basket may include a cable management housing that has one or more data and power ports. The cable management housing may be located at or proximate to a top portion of the server basket. When the server basket is immersed in dielectric fluid in an immersion tank, the cable management housing may be located above a liquid level, thereby providing convenient access to the one or more ports. A signal repeater may be located in the cable management housing and above the liquid level. The server basket may include support arms that can be deployed when removing the server from the dielectric fluid. The support arms may enable drip drying and fluid recapture by the immersion tank. Other examples may be claimed or described.

Abstract: A two-phase immersion cooling system may include an immersion tank containing dielectric fluid. When cooling an electronic device that is immersed in the dielectric fluid, vigorous boiling may occur proximate to the device, and a stream of vapor bubbles may be produced. To prevent the stream of vapor bubbles from adversely affecting cooling performance elsewhere in the immersion tank, a baffle assembly may be provided. The baffle assembly may be removably attachable to the electronic device. In one embodiment, the baffle assembly may include a plate having one or more slots. The baffle assembly may include one or more posts extending from the plate and being configured to attach to a substrate of the electronic device. The baffle assembly may include a baffle that is removably attachable to the one or more slots. Other examples may be claimed or described.

Abstract: An immersion cooling system may include an immersion tank filled with dielectric fluid. To reduce vapor loss when accessing the tank, a retractable cover sheet assembly may be provided. The assembly may include a case having side walls defining an opening. A retractable cover sheet may be located above the opening of the case. The retractable cover sheet may be movable from a first position to a second position to provide a sized opening that is smaller than the opening of the case. A condenser may be mounted to a side wall of the case. The condenser may condense dielectric vapor at or near the sized opening. The condenser may be recessed from the sized opening to avoid interfering with servers being raised or lowered through the sized opening during hot swapping or servicing. Other examples may be claimed or described.

Abstract: Embodiments of immersion cooling systems and methods of operation are described herein. In one example, a method of operating an immersion cooling system can include providing an immersion cooling system, providing IT equipment to be cooled by the immersion cooling system, performing a readiness check of the immersion cooling system, performing a performance check of the immersion cooling system, determining a cooling power of the immersion cooling system, determining a cooling need of the IT equipment, determining a power delta, and adjusting a setting of the immersion cooling system or a setting of the IT equipment to reduce the power delta if the power delta is nonzero. Other examples may be described and claimed.

Abstract: Condenser tubes with non-uniform surface enhancements are described herein. In one example, the condenser tube may include a tube having a first end, a second end opposite the first end, an interior surface, and an exterior surface. The condenser tube may have a longitudinal bore defined by the interior surface and extending from the first end to the second end and configured to transport a coolant. The exterior surface may have a top portion and a bottom portion. The top portion may have a substantially smooth region. The bottom portion may have a plurality of surface enhancements extending longitudinally from the first end to the second end. In one application, the condenser tubes with non-uniform surface enhancements may be deployed in condensers for two-phase immersion cooling systems. Other examples may be claimed or described.

Abstract: A two-phase immersion cooling system may include an immersion tank configured to receive a dielectric fluid. The immersion tank may have an interior volume including a lower portion and an upper portion. The immersion tank may have an electronic device region configured to receive one or more electronic devices. The system may include a condenser mounted in the upper portion of the immersion tank. The system may include a liquid deflector located in the upper portion of the immersion tank and at least partially between a top side of the electronic device region and a top side of the condenser. The liquid deflector may be configured to prevent or inhibit dielectric liquid from splashing from the electronic device region onto the condenser. Other examples may be claimed or described.

Abstract: A device for and method of hot swapping one or more electronic devices from an immersion cooling tank having a first opening, the device including a condensing unit removably locatable in first opening of the immersion cooling tank, the condensing device having a condensing coil forming a second opening through which the electronic device(s) is removable. A retractable cover sheet assembly, under computer control, is positioned to form a sized opening, which may include a containment structure, prior to opening the tank lid to minimize dielectric fluid loss.