Heat dissipation system, a power converter using such a heat dissipation system, and an associated method of thermal management of the power converter are disclosed. The heat dissipation system includes a condenser, a first cooling loop, and a second cooling loop. The first cooling loop is coupled to the condenser and includes a first two-phase heat transfer device. The second cooling loop is coupled to the condenser and includes a second two-phase heat transfer device. The condenser is disposed above the first and second two-phase heat transfer devices.

A method of cooling or heating a plurality of computer processor heat sources, such as processors in a data center or the like, is disclosed with individual sources having a control valve associated therewith. Individual heat sources are in communication with a supply of a coolant fluid and individual control valves have an inlet for receiving coolant fluid from its respective computer processor heat source reflective of the heat source temperature. The control valve has a chamber with an inlet that receives coolant, and an outlet. A valve member within the chamber is movable in response to changes in temperature of the coolant fluid within the chamber between a closed position and an open position. The valve member is of a material that changes shape in response to changes in temperature. The coolant is carbon dioxide (CO.sub.2) that is in its supercritical state as it passes through the heat sources.

A data rack system includes a data center rack frame, a shelf positioned within the data center rack frame; and a modular battery unit disposed on the shelf. The modular battery unit further includes a housing having an outer surface, a plurality of strips of phase change material (“PCM”) attached to the outer surface and spaced apart from one another; and air flow channels. The air flow channels are formed in spaces between two adjacent strips of the plurality of strips and defined by a shape and size of the spaces between the two adjacent strips.

Conditioning systems and methods for providing cooling to a heat load can include an evaporative cooler arranged in a scavenger plenum with a recovery coil downstream of the evaporative cooler. The conditioning systems can operate in various modes, including an adiabatic mode and an evaporative mode, and a blended mode between the adiabatic mode and the evaporative mode, depending on environmental conditions. The blended mode can be enabled by a fluid transmission and retention device fluidically connected to the inlet and outlet of the evaporative cooler, the recovery coil outlet, and the heat load. The fluid transmission and retention device can variably distribute the cooling fluid exiting the recovery coil and the cooling fluid exiting the evaporative cooler to one or both of the heat load and the evaporative cooler inlet. In an example, the fluid transmission and retention device includes a manifold. In another example, the fluid transmission and retention device includes one or more tanks.

A local cooler includes: a housing formed into a box shape; a heat exchanger provided along a slope extending upward to a rear portion from a lower position located on the front side of the housing; a first intake/exhaust port provided on a front surface of the housing; a second intake/exhaust port provided on a bottom surface of the housing; third intake/exhaust ports provided at a plurality of locations among side surfaces, upper surface and rear surface of the housing; and a closing plate capable of selectively shielding these intake/exhaust ports.

A two-phase liquid immersion cooling system is described in which heat generating computer components cause a dielectric fluid in its liquid phase to vaporize. Advantageously, a pH indicator is employed to monitor the dielectric fluid.

A data center cooling system, including a support structure having a lower portion and an upper portion, one or more fans supported by the support structure at a height that is equal to or greater than a height of the electronics cabinets, and a heat exchanger having one or more cooling coils supported at the upper portion of the support structure. In some embodiments, the cooling coils can be supported by the upper portion of the support structure so as to be above the top of and/or over one or more of the electronics cabinets. The fans can be configured to draw air from the one or two rows of electronics cabinets and to cause the air to be passed through the heat exchanger to cool the warmer air from the electronics cabinets.

A system includes at least one storage tank configured to store at least one of first compressed air or liquid air. The system also includes a power supply system comprising a turbine, a generator, and a flywheel. The power supply system is configured to receive second compressed air from the at least one storage tank, wherein the second compressed air comprises either the first compressed air or the liquid air which has been heated into a gaseous state; spin the turbine and the flywheel using the second compressed air, wherein the spinning of the turbine generates electrical energy at the generator; provide the electrical energy to a data center for powering electronic devices of the data center; and provide at least a portion of the second compressed air exhausted by the turbine to the data center for cooling the electronic devices of the data center.

A thermal management system includes a housing having an interior space; a heat-generating component disposed within the interior space; and a working fluid comprising a halogenated material disposed within the interior space such that the heat-generating component contacts a liquid phase of the working fluid. The system further includes a bellows assembly disposed with the interior space, the bellows assembly comprising a first bellows and a second bellows. The first bellows is in fluid communication with the interior space and the second bellows is in fluid communication with an environment external to the housing. The first and second bellows are mechanically coupled such that expansion of the first bellows causes contraction of the second bellows, and contraction of the first bellows causes expansion of the second bellows.

A cooling system of server includes a tank, a case body, a multi-hole box, a first dehumidifying material, a first tube, and a second tube. The tank is configured to accommodate a dielectric fluid. The multi-hole box is disposed in the case body. The first dehumidifying material is disposed in the multi-hole box. The first tube includes a first gas-inlet/outlet end and a second gas-inlet/outlet end respectively connected to the tank and the case body. The second gas-inlet/outlet end is connected to the first dehumidifying material. The second tube includes a liquid-inlet end and a liquid-outlet end respectively connected to the case body and the tank.