摘要:
Apparatus and method for facilitating servicing of a liquid-cooled electronics rack are provided. The apparatus includes a coolant tank, a coolant pump in fluid communication with the coolant tank, multiple parallel-connected coolant supply lines coupling the coolant pump to a coolant supply port of the apparatus, and a coolant return port and a coolant return line coupled between the coolant return port and the coolant tank. Each coolant supply line includes a coolant control valve for selectively controlling flow of coolant therethrough pumped by the coolant pump from the coolant tank. At least one coolant supply line includes at least one filter, and one coolant supply line is a bypass line with no filter. When operational, the apparatus facilitates filling of coolant into a cooling system of a liquid-cooled electronics rack by allowing for selective filtering of coolant inserted into the cooling system.
摘要:
A docking station is provided for cooling an electronics rack of a data center. The docking station includes an enclosure having at least one wall, a cover coupled to the at least one wall, and a central opening sized to receive the electronics rack therein. The enclosure is separate and freestanding from the electronics rack and surrounds the electronics rack, and facilitates establishing a closed loop airflow path passing through air inlet and outlet sides of the rack and through an air return pathway of the enclosure. The docking station further includes an air-to-liquid heat exchange assembly, disposed within the air return pathway for cooling circulating air passing through the closed loop airflow path, and at least one modular cooling unit, disposed within the enclosure for providing system coolant to the air-to-liquid heat exchange assembly and to at least one electronics subsystem of the electronics rack.
摘要:
A multi-rack assembly is provided which includes adjacent first and second electronics racks, each being at least partially air-cooled, and an air-to-liquid heat exchanger associated with the first rack for cooling at least a portion of air passing through the first rack. The heat exchanger, which is disposed at the air inlet or air outlet side of the first rack and is coupled in fluid communication with a coolant loop to receive coolant from the loop and exhaust coolant to the loop, transfers heat from air passing thereacross to coolant passing therethrough. The assembly also includes a cooling unit, associated with the first rack and cooling coolant in the coolant loop, and an airflow director associated with the second rack and facilitating ducting at least a portion of air passing through the second rack to also pass across the heat exchanger associated with the first rack.
摘要:
Cooling apparatuses and methods are provided for immersion-cooling one or more electronic components. The cooling apparatus includes a housing at least partially surrounding and forming a fluid-tight compartment about the electronic component(s), and a boiling fluid mixture of first and second dielectric fluids within the fluid-tight compartment, with the electronic component(s) immersed within the mixture. A condensing fluid is also provided within the fluid-tight compartment, and is immiscible with the boiling fluid mixture. The condensing fluid has a lower specific gravity and a higher thermal conductivity than the boiling fluid mixture, and facilitates condensing of vaporized boiling fluid mixture. A cooling structure is provided within the compartment, and includes a condensing region and a sub-cooling region, with the condensing region being in contact with the condensing fluid, and the sub-cooling region being in contact with the boiling fluid mixture. The cooling structure facilitates heat removal from the fluid-tight compartment.
摘要:
Apparatuses and methods are provided for facilitating cooling of an electronic component. The apparatus includes a vapor-compression refrigeration system, which includes an expansion component, an evaporator, a compressor and a condenser coupled in fluid communication. The evaporator is coupled to and cools the electronic component. The apparatus further includes a contaminant separator coupled in fluid communication with the refrigerant flow path. The separator includes a refrigerant cold filter and a thermoelectric array. At least a portion of refrigerant passing through the refrigerant flow path passes through the cold filter, and the thermoelectric array provides cooling to the cold filter to cool refrigerant passing through the filter. By cooling refrigerant passing through the filter, contaminants solidify from the refrigerant, and are deposited in the cold filter. The separator may further include a refrigerant hot filter coupled to a hot side of the thermoelectric array for further filtering the refrigerant.
摘要:
Cooling apparatuses and methods are provided for immersion-cooling one or more electronic components. The cooling apparatus includes a housing at least partially surrounding and forming a fluid-tight compartment about the electronic component(s) and a dielectric fluid disposed within the fluid-tight compartment, with the electronic component(s) immersed within the dielectric fluid. A vapor-condenser, heat sink, and thermal conductive path are also provided. The vapor-condenser includes a plurality of thermally conductive condenser fins extending within the fluid-tight compartment, and the heat sink includes a first region and a second region, with the first region of the heat sink being in thermal contact with the vapor-condenser. The thermal conduction path couples the fluid-tight compartment and the second region of the heat sink in thermal contact, and includes a thermoelectric array, which facilitates transfer of heat from the fluid-tight compartment to the second region of the heat sink through the thermal conduction path.
摘要:
A pressure control unit and method are provided for facilitating single-phase heat transfer within a liquid-based cooling system. The pressure control unit includes a pressure vessel containing system coolant, and a pressurizing mechanism associated with the pressure vessel. A coolant line couples system coolant in the pressure vessel in fluid communication with the coolant loop of the cooling system, and a regulator mechanism couples to the pressurizing mechanism to maintain pressure within the pressure vessel at or above a defined pressure threshold, thus maintaining pressure within the coolant loop above the pressure threshold. The defined pressure threshold is set to facilitate system coolant within the coolant loop remaining single-phase throughout an operational temperature range of the system coolant within the coolant loop. More particularly, the pressure threshold is set to ensure pressure of system coolant within the coolant loop remains above the coolant's saturation pressure at maximum operational temperature.
摘要:
A cooling system and method are provided for facilitating cooling of multiple liquid-cooled electronics racks. The cooling system includes a main system coolant supply loop with a plurality of system coolant supply branch lines for facilitating supply of cooled system coolant to the electronics racks, and a main system coolant return loop with a plurality of system coolant return branch lines for facilitating return of exhausted system coolant from the electronics racks. When operational, cooled system coolant circulates through the coolant supply loop and exhausted system coolant circulates through the coolant return loop. A plurality of modular cooling units are coupled to the coolant supply loop and coolant return loop. Each modular cooling unit includes a heat exchanger to facilitate cooling of a portion of the exhausted coolant circulating through the main system coolant return loop for return as cooled system coolant to the main system coolant supply loop.
摘要:
Condenser structures and cooling apparatuses are provided which facilitate vapor condensation heat transfer of a coolant employed in cooling an electronic device. The condenser structure includes a thermally conductive condenser block with multiple exposed cavities therein extending from a first main surface towards a second main surface. The condenser block is a monolithic structure, and the first main surface is a coolant vapor condensate formation surface when the condenser structure is operationally facilitating cooling of an electronic device. The exposed cavities extend from the first main surface into the condenser block to increase a condensation surface area of the condenser block, thereby facilitating coolant vapor condensate formation on the condenser block, and thus cooling of the electronic device using a two-phase coolant. The condenser structure also includes coolant-carrying channels for facilitating cooling of the condenser block, and thus vapor condensate formation on the condenser block.
摘要:
A hybrid air and liquid coolant conditioning unit is provided for facilitating cooling of electronics rack(s) of a data center. The unit includes a first heat exchange assembly, including a liquid-to-liquid heat exchanger, a system coolant loop and a facility coolant loop, and a second heat exchange assembly, including an air-to-liquid heat exchanger, an air-moving device, and the facility coolant loop. The system coolant loop provides cooled system coolant to the electronics rack(s), and expels heat in the liquid-to-liquid heat exchanger from the electronics rack(s) to the facility coolant. The air-to-liquid heat exchanger extracts heat from the air of the data center and expels the heat to the facility coolant of the facility coolant loop. The facility coolant loop provides chilled facility coolant in parallel to the liquid-to-liquid heat exchanger and the air-to-liquid heat exchanger. In one implementation, the hybrid coolant conditioning unit includes a vapor-compression heat exchange assembly.