Abstract: An observed operational state can include an operational state of one or more system devices. A sensor can emit, in response to a detected observable condition reflective of a given operational state, a simulated signal reflective of a different operational state as a proxy for the detected condition. A controller receiving such a proxy signal can, at least partially responsively to the proxy signal, issue a command corresponding to the given operational state. For example, a leak detector can emit in response to a detected leak, or a flow-rate sensor can emit in response to a detected flow-rate of a liquid, a simulated fan-speed tachometer signal representative of a selected fan speed. At least partially in response to observing a simulated tachometer signal, a controller can issue a system command corresponding to an underlying system condition for which the simulated tachometer signal is a proxy.

Abstract: A heat exchanger includes: a heat spreader plate; plural microchannels for directing heat transfer fluid over the heat spreader plate, wherein each microchannel has a first end and an opposite end, extends substantially parallel with each other microchannel, and has a continuous flow path between the first and opposite ends; a fluid inlet opening for the microchannels and positioned between the first and opposite ends, a first fluid outlet opening from each of the microchannel first ends; and an opposite fluid outlet opening from each of the microchannel opposite ends, the fluid inlet opening and the first and opposite fluid outlet openings providing that a flow fluid that passes into the plurality of microchannels, flows along the plurality of microchannels outwardly from the fluid inlet opening. A method of cooling a heat generating component uses a fluid heat exchanger that splits a mass flow of coolant.

Abstract: A fluid heat exchanger includes: a heat spreader plate including an intended heat generating component contact region; a plurality of microchannels for directing heat transfer fluid over the heat spreader plate, the plurality of microchannels each having a first end and an opposite end and each of the plurality of microchannels extending substantially parallel with each other microchannel and each of the plurality of microchannels having a continuous channel flow path between their first end and their opposite end; a fluid inlet opening for the plurality of microchannels and positioned between the microchannel first and opposite ends, a first fluid outlet opening from the plurality of microchannels at each of the microchannel first ends; and an opposite fluid outlet opening from the plurality of microchannels at each of the microchannel opposite ends, the fluid inlet opening and the first and opposite fluid outlet openings providing that any flow of heat transfer fluid that passes into the plurality of microc

Abstract: Leak detectors can have a sensor configured to detect a presence of a working fluid externally of a liquid-based heat-transfer system. The leak detector can also have an electrical circuit configured to emit a signal responsive to a detected presence of the working fluid externally of the liquid-based heat transfer system. Methods of detecting a leak of a working fluid from a liquid-based heat-transfer system can include sensing a presence or an absence of a working fluid externally of a liquid-based heat-transfer system. The methods can include generating a tachometer signal in correspondence with a sensed absence and a sensed presence of the working fluid. The methods can include monitoring the generated tachometer signal.

Abstract: Systems, devices and methods for generating a virtual mapping of a room are provided. A plurality of racks for housing servers, a plurality of position determining devices and a plurality of temperature sensors can be provided. A computer can be operatively connected to the plurality of position determining devices and the temperature sensors. Each position determining device can be associated with one or more of the temperature sensors. For each of the temperature sensors, position information can be obtained from the position determining device associated with the temperature sensor and the position information used to plot the temperature sensor in a virtual mapping of the room. The virtual mapping can then be used to visually represent a location in the room where a temperature measurement was taken.

Abstract: Leak detectors can have a sensor configured to detect a presence of a working fluid externally of a liquid-based heat-transfer system. The leak detector can also have an electrical circuit configured to emit a signal responsive to a detected presence of the working fluid externally of the liquid-based heat transfer system. Methods of detecting a leak of a working fluid from a liquid-based heat-transfer system can include sensing a presence or an absence of a working fluid externally of a liquid-based heat-transfer system. The methods can include generating a tachometer signal in correspondence with a sensed absence and a sensed presence of the working fluid. The methods can include monitoring the generated tachometer signal.

Abstract: Some modular heat-transfer systems can have an array of at least one heat-transfer element being configured to transfer heat to a working fluid from a heat dissipator. A manifolded heat exchanger can be configured to receive heated working fluid from a plurality of heat-transfer elements and to reject heat to a working fluid of a second fluid circuit. In some embodiments, the heat exchanging manifold can split an incoming flow of working fluid from the second fluid circuit into two or more streams having different bulk flow directions. In some instances, heat exchanger portions of the heat exchanging manifold are configured to provide counter flow heat exchange between the working fluid of the first fluid circuit and the working fluid of the second fluid circuit.

Abstract: A fluid heat exchanger can define a plurality of microchannels each having a first end and an opposite end and extending substantially parallel with each other microchannel. Each microchannel can define a continuous channel flow path between its respective first end and opposite end. A fluid inlet opening for the plurality of microchannels can be positioned between the microchannel first and opposite ends, a first fluid outlet opening from the plurality of microchannels can be positioned adjacent each of the microchannel first ends, and an opposite fluid outlet opening from the plurality of microchannels can be positioned adjacent each of the microchannel opposite ends such that a flow of heat transfer fluid passing into the plurality of microchannels flows along the full length of each of the plurality of microchannels outwardly from the fluid inlet opening. Related methods are disclosed.

Abstract: A fluid heat exchanger includes: a heat spreader plate including an intended heat generating component contact region; a plurality of microchannels for directing heat transfer fluid over the heat spreader plate, the plurality of microchannels each having a first end and an opposite end and each of the plurality of microchannels extending substantially parallel with each other microchannel and each of the plurality of microchannels having a continuous channel flow path between their first end and their opposite end; a fluid inlet opening for the plurality of microchannels and positioned between the microchannel first and opposite ends, a first fluid outlet opening from the plurality of microchannels at each of the microchannel first ends; and an opposite fluid outlet opening from the plurality of microchannels at each of the microchannel opposite ends, the fluid inlet opening and the first and opposite fluid outlet openings providing that any flow of heat transfer fluid that passes into the plurality of microc

Abstract: A fluid heat exchanger can define a plurality of microchannels, each having a first end and an opposite end and extending substantially parallel with each other microchannel. Each microchannel can define a continuous channel flow path between its respective first end and opposite end. A fluid inlet opening for the plurality of microchannels can be positioned between the microchannel first and opposite ends, a first fluid outlet opening from the plurality of microchannels can be positioned adjacent each of the microchannel first ends, and an opposite fluid outlet opening from the plurality of microchannels can be positioned adjacent each of the microchannel opposite ends such that a flow of heat transfer fluid passing into the plurality of microchannels flows along the full length of each of the plurality of microchannels outwardly from the fluid inlet opening. Related methods are disclosed.

Abstract: A heat exchange system can include a heat exchange unit and a magnetic element. The heat exchange unit can have a housing and a heat exchange surface configured to thermally couple to a subject of heat exchange. The housing can define an outer surface spaced apart from the heat exchange surface. A magnetic element, a ferrous element, or both, can be positioned within the housing. A coupling agent can have a complementary magnetic element, ferrous element, or both. The coupling agent can interact with the magnetic element, the ferrous element, or both, positioned within the housing. The coupling agent can be coupled to a substrate to retain the heat exchange unit relative to the substrate.

Abstract: A housing can have a cap, a base member and a mid-portion positioned between and removably coupled with the cap and the base member. The cap and the mid-portion can define a reservoir therebetween and the cap can define a recessed inner wall in fluid communication with the reservoir. The mid-portion can define a recessed impeller chamber configured to receive a pump impeller. The mid-portion can further define a retainer positioned between the impeller chamber and the inner chamber. A resiliently compressible member can be positioned within the inner chamber and configured to resiliently compress in response to a volumetric expansion of the liquid coolant. The retainer can contact the resiliently compressible member to prevent the resiliently compressible member from moving out of the reservoir or into a position blocking a liquid coolant flow through a port. The mid-portion can define a housing wall forming the retainer.

Abstract: A pump can have a housing defining therein an inner chamber of fixed volume. An inlet through the housing can provide communication to the inner chamber and an outlet through the housing can provide communication to the inner chamber. A pumping mechanism can be positioned in the inner chamber. A resiliently, compressible member can accommodate a portion of the fixed volume of the inner chamber.

Abstract: Some modular heat-transfer systems can have an array of at least one heat-transfer element being configured to transfer heat to a working fluid from an operable element. A manifold module can have a distribution manifold and a collection manifold. A decoupleable inlet coupler can be configured to fluidicly couple the distribution manifold to a respective heat-transfer element. A decoupleable outlet coupler can be configured to fluidicly couple the respective heat-transfer element to the collection manifold. An environmental coupler can be configured to receive the working fluid from the collection manifold, to transfer heat to an environmental fluid from the working fluid or to transfer heat from an environmental fluid to the working fluid, and to discharge the working fluid to the distribution manifold.

Abstract: A heat exchanger includes: a heat spreader plate; plural microchannels for directing heat transfer fluid over the heat spreader plate, wherein each microchannel has a first end and an opposite end, extends substantially parallel with each other microchannel, and has a continuous flow path between the first and opposite ends; a fluid inlet opening for the microchannels and positioned between the first and opposite ends, a first fluid outlet opening from each of the microchannel first ends; and an opposite fluid outlet opening from each of the microchannel opposite ends, the fluid inlet opening and the first and opposite fluid outlet openings providing that a flow fluid that passes into the plurality of microchannels, flows along the plurality of microchannels outwardly from the fluid inlet opening. A method of cooling a heat generating component uses a fluid heat exchanger that splits a mass flow of coolant.

Abstract: A bracket, computer component and method for connecting to connection points associated with a socket on a computer circuit board are provided. The bracket and computer component have a mounting device including a fastener connectable to one of the connection points and positioned on a mounting flange. The mounting device is adjustable relative to the mounting flange from a first position on the mounting flange to a second position to allow the bracket and computer component to be used in conjunction with a number of different types of sockets.

Abstract: A method for cooling an electronic component includes: providing an electronic component and a cooling device to cool the electronic component; determining the heat generating ability of the electronic component; and driving operation of the cooling device to cool the electronic component based on the heat generating ability of the electronic component. An apparatus and/or an electronics cooling device are provided based on the method.

Abstract: A bracket, computer component and method for connecting to connection points associated with a socket on a computer circuit board are provided. The bracket and computer component have a mounting device including a fastener connectable to one of the connection points and positioned on a mounting flange. The mounting device is adjustable relative to the mounting flange from a first position on the mounting flange to a second position to allow the bracket and computer component to be used in conjunction with a number of different types of sockets.

Abstract: Systems, devices and methods for generating a virtual mapping of a room are provided. A plurality of racks for housing servers, a plurality of position determining devices and a plurality of temperature sensors can be provided. A computer can be operatively connected to the plurality of position determining devices and the temperature sensors. Each position determining device can be associated with one or more of the temperature sensors. For each of the temperature sensors, position information can be obtained from the position determining device associated with the temperature sensor and the position information used to plot the temperature sensor in a virtual mapping of the room. The virtual mapping can then be used to visually represent a location in the room where a temperature measurement was taken.

Abstract: The invention provides for an orientation insensitive heat exchanger assembly for cooling an electronic device comprising a hermetically sealed housing defining a boiling chamber and two condensing chambers. A partition is disposed in the boiling chamber and defines two sets of alternating channels extending in overlapping relationship to one another and with one set of alternating channels open to one of the condensing chambers and the other set of alternating channels open to the other condensing chamber for sealing the condensing chambers from one another. Coolant is maintained in each of the condensing chambers. In operation, if the thermosiphon is tilted with one side lower than the other, the channels open to the lower side are empty of coolant into the lower condensing chamber while the channels open to the opposite upper side hold the coolant over the entire boiling chamber aligning with an electronic device to continue cooling.