Abstract: Apparatuses and methods of fabrication are provided which include a mechanical coolant pump to facilitate pumping a coolant through a coolant loop. The mechanical coolant pump is to couple to an individual and be physically powered by a specified movement of the individual to pump coolant. Coolant pumped by the mechanical coolant pump is circulated by the coolant pump through a device associated with the individual to cool the device.

Abstract: Tamper-respondent assemblies are provided which include an enclosure mounted to a circuit board and enclosing one or more components to be protected within a secure volume. A tamper-respondent sensor covers, at least in part, an inner surface of the enclosure, and includes at least one tamper-detect circuit. A monitor circuit is disposed within the secure volume to monitor the tamper-detect circuit(s) for a tamper event. A pressure connector assembly is also disposed within the secure volume, between the tamper-respondent sensor and the circuit board. The pressure connector assembly includes a conductive pressure connector electrically connecting, at least in part, the monitor circuit and the tamper-detect circuit(s) of the tamper-respondent assembly, and a spring-biasing mechanism to facilitate breaking electrical connection of the conductive pressure connector to the tamper-detect circuit(s) with a tamper event.

Abstract: Tamper-respondent assemblies are provided which include a circuit board, an enclosure assembly mounted to the circuit board, and a pressure sensor. The circuit board includes an electronic component, and the enclosure assembly is mounted to the circuit board to enclose the electronic component within a secure volume. The enclosure assembly includes a thermally conductive enclosure with a sealed inner compartment, and a porous heat transfer element within the sealed inner compartment. The porous heat transfer element is sized and located to facilitate conducting heat from the electronic component across the sealed inner compartment of the thermally conductive enclosure. The pressure sensor senses pressure within the sealed inner compartment of the thermally conductive enclosure to facilitate identifying a pressure change indicative of a tamper event.

Abstract: Apparatuses and methods of fabrication are provided which include a mechanical coolant pump to facilitate pumping a coolant through a coolant loop. The mechanical coolant pump is to couple to an individual and be physically powered by a specified movement of the individual to pump coolant. Coolant pumped by the mechanical coolant pump is circulated by the coolant pump through a device associated with the individual to cool the device.

Abstract: Aspects include a cryptographic hardware security module having a secure embedded heat pipe and methods for assembling the same. The cryptographic hardware security module can include a printed circuit board having one or more components. The cryptographic hardware security module can further include an encapsulation structure having a top can and a bottom can. The top can is fixed to a first surface of the printed circuit board and the bottom can is fixed to second surface of the printed circuit board opposite the first surface. A heat pipe is positioned between the top can and the component. The heat pipe includes two or more 180-degree bends. A portion of the heat pipe extends beyond a secure region of the encapsulation structure.

Abstract: Tamper-respondent assemblies are provided which include an enclosure mounted to a circuit board and enclosing one or more components to be protected within a secure volume. A tamper-respondent sensor covers, at least in part, an inner surface of the enclosure, and includes at least one tamper-detect circuit. A monitor circuit is disposed within the secure volume to monitor the tamper-detect circuit(s) for a tamper event. A pressure connector assembly is also disposed within the secure volume, between the tamper-respondent sensor and the circuit board. The pressure connector assembly includes a conductive pressure connector electrically connecting, at least in part, the monitor circuit and the tamper-detect circuit(s) of the tamper-respondent assembly, and a spring-biasing mechanism to facilitate breaking electrical connection of the conductive pressure connector to the tamper-detect circuit(s) with a tamper event.

Abstract: Tamper-respondent assemblies are provided which include a circuit board, an enclosure assembly mounted to the circuit board, and a pressure sensor. The circuit board includes an electronic component, and the enclosure assembly is mounted to the circuit board to enclose the electronic component within a secure volume. The enclosure assembly includes a thermally conductive enclosure with a sealed inner compartment, and a porous heat transfer element within the sealed inner compartment. The porous heat transfer element is sized and located to facilitate conducting heat from the electronic component across the sealed inner compartment of the thermally conductive enclosure. The pressure sensor senses pressure within the sealed inner compartment of the thermally conductive enclosure to facilitate identifying a pressure change indicative of a tamper event.

Abstract: Apparatuses and methods are provided for blocking removal of an air-moving assembly from a housing when in operational state. The apparatus includes a protective louver assembly having a louver(s) and an interlock element(s). The louver(s) is disposed at an air inlet or an air outlet of the air-moving assembly, and pivots between an operational and a quiesced orientation, dependent on presence or absence, respectively, of airflow through the air-moving assembly. The interlock element(s) is associated with the louver(s) to pivot with the louver(s) between the operational orientation and the quiesced orientation. In the operational orientation, the interlock element(s) blocks, at least in part, access to at least one fastener securing the air-moving assembly within the housing, and thereby prevents removal of the air-moving assembly from the chassis when in the operational state.

Abstract: A deionized-water cooling system for electrical equipment is provided. The system includes a cooling loop in which water comes into contact with the electrical equipment and a deionization bypass connected to the cooling loop. The deionization bypass includes a first filter component configured to remove dissolved oxygen, a second filter component configured to filter solid particles, a deionization cartridge configured to deionize water, and a plurality of valves configured to control a water flow within the deionization bypass.

Abstract: Apparatuses and methods are provided for protectively covering an air inlet or outlet of an air-moving assembly. The apparatus includes a protective cover assembly, which includes a retractable cover and a spring-biasing mechanism. The retractable cover transitions between a retracted state, when the air-moving assembly is operatively positioned within the chassis, and in extended state, when the air-moving assembly is withdrawn from the chassis. In retracted state, the retractable cover is retracted away from the air inlet or outlet, and in extended state, the retractable cover covers, at least partially, the air inlet or outlet. The spring-biasing mechanism is coupled to the retractable cover and biases the retractable cover in the extended state when the air-moving assembly is withdrawn from the chassis, and compresses to allow transition of the retractable cover to the retracted state as the air-moving assembly is inserted into operative position within the chassis.

Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.

Abstract: A deionized-water cooling system for electrical equipment is provided. The system includes a cooling loop in which water comes into contact with the electrical equipment and a deionization bypass connected to the cooling loop. The deionization bypass includes a first filter component configured to remove dissolved oxygen, a second filter component configure to filter solid particles, a deionization cartridge configured to deionize water, and a plurality of valves configured to control a water flow within the deionization bypass.

Abstract: Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

Abstract: Composite heat sink structures and methods of fabrication are provided, with the composite heat sink structures including: a thermally conductive base having a main heat transfer surface to couple to, for instance, at least one electronic component to be cooled; a compressible, continuous sealing member; and a sealing member retainer compressing the compressible, continuous sealing member against the thermally conductive base; and an in situ molded member. The in situ molded member is molded over and affixed to the thermally conductive base, and is molded over and secures in place the sealing member retainer. A coolant-carrying compartment resides between the thermally conductive base and the in situ molded member, and a coolant inlet and outlet are provided in fluid communication with the coolant-carrying compartment to facilitate liquid coolant flow through the compartment.

Abstract: A method of providing a cooling apparatus for cooling a heat-dissipating component(s) of an electronics enclosure includes: providing a thermal conductor to couple to the heat-dissipating component(s), the thermal conductor including a first conductor portion coupled to the heat-dissipating component, and a second conductor portion to position along an air inlet side of the electronics enclosure, so that in operation, the first conductor portion transfers heat from the component(s) to the second conductor portion; coupling at least one air-cooled heat sink to the second conductor portion to facilitate transfer of heat to airflow ingressing into the enclosure; providing at least one thermoelectric device coupled to the first or second conductor portion to facilitate providing active auxiliary cooling to the thermal conductor; and providing a controller to control operation of the thermoelectric device(s) and to selectively switch operation of the cooling apparatus between active and passive cooling modes.

Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.

Abstract: A pump is provided which includes a rotating element, and a volute housing having a fluid inlet and a fluid outlet. In operational state, the rotating element rotates, drawing fluid through the fluid inlet of the volute housing and expelling the fluid at a higher pressure through the fluid outlet. Further, the pump includes a bypass mechanism integrated, at least in part, within the volute housing and exposing in nonoperational state of the pump, a bypass path through, at least in part, the volute housing that allows the fluid to pass from the fluid inlet to the fluid outlet of the pump.

Abstract: Energy efficient control of cooling system cooling of an electronic system is provided based, in part, on weighted cooling effectiveness of the components. The control includes automatically determining speed control settings for multiple adjustable cooling components of the cooling system. The automatically determining is based, at least in part, on weighted cooling effectiveness of the components of the cooling system, and the determining operates to limit power consumption of at least the cooling system, while ensuring that a target temperature associated with at least one of the cooling system or the electronic system is within a desired range by provisioning, based on the weighted cooling effectiveness, a desired target temperature change among the multiple adjustable cooling components of the cooling system. The provisioning includes provisioning applied power to the multiple adjustable cooling components via, at least in part, the determined control settings.

Abstract: Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

Abstract: Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.