Abstract: Techniques for dynamically changing a pressure within a pressurized cooling system to thereby allow different cooling rates to be used to cool electronic equipment are disclosed. A pressurized cooling system cools electronic heat generating components using dielectric heat transfer fluid disposed within a two-phase immersion cooling container. This container is operable to maintain different pressure levels. The pressurized cooling system includes a pressure system structured to modify a pressure within the container. The system operates in a first state when the pressure is above a threshold pressure. The system operates in a second state when the pressure is at the threshold pressure. The system operates in either one of the first state or the second state based on an operating state of the heat generating component.

Abstract: A system may include a first energy storage system (ESS) configured to provide electrical power to a datacenter. A system may include a second ESS configured to provide electrical power to the datacenter, wherein the second ESS is a higher-level ESS relative to the first ESS. A system may include a hierarchical ESS controller in data communication with the first ESS, the second ESS, and the datacenter and configured to: obtain grid information from a regional power grid, obtain first ESS state information, obtain second ESS state information, obtain datacenter power demands, determine a discharge schedule of the first ESS and the second ESS for the datacenter based at least partially on the grid information and the datacenter power demands, and discharge at least one of the first ESS and the second ESS based on the discharge schedule.

Abstract: A processing unit includes a substrate, an electrical load, and a microfluidic volume. The electrical load is supported by the first surface of the substrate, and the microfluidic volume is positioned in the second surface of the substrate. The processing unit includes a first electrode positioned in the microfluidic volume and a second electrode positioned in the microfluidic volume. A first TSV connects the first electrode to the electrical load, and a second TSV connects the second electrode to the electrical load. An electrochemical fluid is positioned in the microfluidic volume to provide electrical power to the electrical load and receive heat from the electrical load.

Abstract: A thermal management system includes an air handling unit (AHU) configured to receive outside air (OA) from an OA intake, and water from a water source, where the AHU is configured to direct conditioned air toward a cold aisle and the AHU includes a modular adiabatic layer containing an evaporative media, and the modular adiabatic layer includes a plurality of subregions configured to be wetted by the evaporative media independently of one another.

Abstract: A system for providing power to a datacenter includes an information technology (IT) load, a grid connection, a grid information source, a discretely refuellable energy source, and an energy controller. The grid connection provides electrical communication between the IT load and a power grid. The grid information source is in communication with the grid connection and configured to obtain grid information. The discretely refuellable energy source is in electrical communication with the IT load. The energy controller is in data communication with the grid information source and configured to discharge the discretely refuellable energy source to the IT load based at least partially on the grid information.

Abstract: A method of thermal management of a computing device includes immersing a first electronic component of the computing device in a first working fluid contained in a first volume, immersing a second electronic component of the computing device in a second working fluid contained in a second volume, and changing a pressure in the first volume to alter a boiling temperature of the first working fluid in the first volume.

Abstract: A thermal management device includes a microfluidic volume having a first peripheral side and a second peripheral side and including at least one thermal element, a first port to the microfluidic volume, a second port from the microfluidic volume, an inlet valve at the first port to the microfluidic volume, an outlet valve at the second port, and a valve piezoelectric element in mechanical communication with a portion of at least one of the inlet valve and the outlet valve to move at least the portion of the at least one of the inlet valve and the outlet valve and selectively allow fluid flow through the microfluidic volume.

Abstract: A thermal management device includes a microfluidic volume having a first peripheral side and a second peripheral side and including at least one thermal element, a pumping membrane located adjacent to the microfluidic volume between the first peripheral side and the second peripheral side and the at least one thermal element, and a pumping piezoelectric element in mechanical communication with the pumping membrane to move at least a portion of the pumping membrane and alter a volume of the microfluidic volume. The thermal management device further includes a first port to the microfluidic volume and a second port from the microfluidic volume.

Abstract: A method for encoding data in a datacenter is provided that includes obtaining data to be encoded, encoding the data to a set of encoded spatiotemporal patterns, and outputting the set of encoded spatiotemporal patterns.

Abstract: A system may include a first node having a first display device configured to display a first spatiotemporal pattern. A system may include a second node having a second display device configured to display a second spatiotemporal pattern. A system may include a camera. A system may include a means for selectively imaging one of the first spatiotemporal pattern and the second spatiotemporal pattern with the camera.

Abstract: A method for encoding data in a datacenter is provided that includes obtaining data to be encoded, encoding the data to a set of encoded spatiotemporal patterns, and outputting the set of encoded spatiotemporal patterns.

Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.

Abstract: A liquid-submersible thermal management system includes a shell, a heat-generating component, a working fluid, and at least one heat-dispersing element. The shell defines an immersion chamber where the heat-generating component is located in the immersion chamber. The working fluid is positioned in the immersion chamber and at least partially surrounds the heat-generating component so the working fluid receives heat from the heat-generating component. The at least one heat-dispersing element is positioned on exterior surface of the shell to conduct heat from the shell into the heat-dispersing element.

Abstract: A system for efficiently interconnecting computing nodes can include a plurality of computing nodes and a plurality of network switches coupled in parallel to the plurality of computing nodes. The system can also include a plurality of node interfaces. Each computing node among the plurality of computing nodes can include at least one node interface for each network switch among the plurality of network switches. The plurality of node interfaces corresponding to a computing node can be configured to send data to another computing node via the plurality of network switches. The system can also include a plurality of switch interfaces. Each network switch among the plurality of network switches can include at least one switch interface for each computing node among the plurality of computing nodes. A switch interface corresponding to the computing node can be coupled to a node interface corresponding to the computing node.

Abstract: An electronic device includes a substrate having a first surface and an opposite second surface; a photonic transmitter supported by the first surface of the substrate; a photonic receiver supported by the first surface of the substrate; a microfluidic volume positioned in the second surface of the substrate; a waveguide positioned to direct photonic signal from the photonic transmitter to the photonic receiver, wherein at least a portion of the waveguide is positioned between the first surface of the substrate and at least a portion of the microfluidic volume; and a working fluid in the microfluidic volume to receive heat from the waveguide.

Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.

Abstract: A processing unit includes a first die and a second die with a microfluidic volume between the first die and the second die. At least one heat transfer structure couples the first die to the second die and is located in the microfluid volume. An electrochemical fluid is positioned in the microfluidic volume to provide electrochemical energy to at least one of the first die and the second die and receive heat from the first die and the second die.

Abstract: A power controller allocates input power to a datacenter between computing power for computing services, backup power, and overhead power for overhead systems. The power controller reallocates the overhead power and/or the backup power to the computing power. This may increase the overall utilization of the datacenter by allowing additional processing power of the servers to be used.

Abstract: A system for using free-space optics to interconnect a plurality of computing nodes can include a plurality of optical transceivers that facilitate free-space optical communications among the plurality of computing nodes. The system may ensure a line of sight between the plurality of computing nodes and the optical transceivers to facilitate the free-space optical communications. The line of sight may be preserved by the position or placement of the computing nodes in the system. The position or placement of the computing nodes may be achieved by using different shaped enclosures for holding the computing nodes.

Abstract: The disclosed technology is generally directed to vapor-air transition detection for two-phase liquid immersion cooling. In one example of the technology, a first device is cooled via two-phase liquid immersion cooling, such that the first device is submerged in a dielectric liquid in a system, and such that a boiling temperature of the dielectric liquid is a temperature that is suitable for keeping the first device cool. A portion of a first strip that is disposed in the system above the dielectric liquid is cooled. The first strip is composed of a thermo-conductive material. While the portion of the first strip is being cooled, via the first strip, a location of a vapor-air boundary in the system is determined based on a detected temperature along a length of the first strip.