Abstract: A thermal management system includes a baseplate assembly and a flow system. The baseplate assembly includes a baseplate and a semiconductor die. The flow system includes a submerged jet impingement assembly for direct semiconductor die cooling, a first flow path extending over the semiconductor die via the submerged jet impingement assembly, and a second flow path in thermal contact with the baseplate, the flow system including a fluid flowing through the first flow path and the second flow path. The flow system is configured to direct the fluid to the upper semiconductor surface of the semiconductor die via the first flow path and to the baseplate via the second flow path so as to transfer heat away from the semiconductor die and from the baseplate so as to cool the baseplate assembly.

Abstract: The present disclosure relates to a novel absorbance-based colorimetric device system, and to methods of using the novel absorbance-based colorimetric device system.

Abstract: A vapor chamber device having a first vapor core configured to passively spread heat from a localized first input area to a relatively larger first output area adjacent to and in thermal contact with a heat output side of the vapor chamber device, and a second vapor core configured to passively spread heat from a localized second input area adjacent to and in thermal contact with a heat input side of the vapor chamber device to a relatively larger second output area in thermal contact with the first input area of the first vapor core. The second vapor core is configured to attenuate high heat flux hotspots on the first input area before the heat fluxes thereof pass through the second output area of the second vapor core to the first input area of the first vapor core.

Abstract: Systems and methods that utilize enhanced boiling surfaces to promote the efficiency of boiling. Such a system has a surface that is hydrophobic and exhibits a sufficiently low receding contact angle to a liquid such that vapor spreading during bubble growth and premature transition to film boiling is mitigated.

Abstract: The present disclosure relates to a novel absorbance-based colorimetric device system, and to methods of using the novel absorbance-based colorimetric device system.

Abstract: Systems and methods that utilize enhanced boiling surfaces to promote the efficiency of boiling. Such a system has a surface that is hydrophobic and exhibits a sufficiently low receding contact angle to a liquid such that vapor spreading during bubble growth and premature transition to film boiling is mitigated.

Abstract: Permeable membrane microchannel heat sinks and methods of producing such a heat sink, wherein such a heat sink includes a base and at least first and second microchannels defined by at least one porous and permeable membrane that is on the base and defines primary heat exchange surfaces of the heat sink. The membrane has opposing faces exposed to the first and second microchannels, and a fluid flowing through the heat sink flows from the first microchannel to the second microchannel through pores in the membrane.

Abstract: Vapor chambers suitable for applications with power densities of one kW/cm2 or greater over a heat input area of one cm2 or greater and methods of manufacturing the same are provided. The vapor chambers include a housing having a thermally conductive substrate, a working fluid contained within the housing, a base layer formed of a porous thermally conductive material and located on and in thermal contact with the substrate, a cap layer formed of a porous thermally conductive material having through-holes formed therein defining vapor vents, and a plurality of conduits connecting the cap layer and the base layer with interstitial gaps therebetween. The conduits are capable of conveying the working fluid from the cap layer to the base layer. Heat entering the base layer causes the working fluid to evaporate from the base layer and the base layer is replenished with the working fluid through the conduits.

Abstract: Methods and apparatuses for detection of gas bubbles in a microchannel configured for a conductive fluid to flow therethrough. The methods and apparatuses utilize a plate and at least two aligned electrodes embedded within the plate. The plate is configured to be located over the microchannel such that the at least two aligned electrodes are located along a length of the microchannel in the flow direction. Impedance is measured between the electrodes, and the percentage of gas within the fluid flowing through the microchannel is measured based on the measured impedance between the electrodes.

Abstract: Materials, apparatuses, and methods that are suitable for separating immiscible liquids and make use of a porous host material functionalized with a functionalizing agent such that the host material is superhydrophobic.

Abstract: Methods and apparatuses for detection of gas bubbles in a microchannel configured for a conductive fluid to flow therethrough. The methods and apparatuses utilize a plate and at least two aligned electrodes embedded within the plate. The plate is configured to be located over the microchannel such that the at least two aligned electrodes are located along a length of the microchannel in the flow direction. Impedance is measured between the electrodes, and the percentage of gas within the fluid flowing through the microchannel is measured based on the measured impedance between the electrodes.