Patent
Cooling of electronics by electrically conducting fluids
Uttam Ghoshal,Andrew Carl Miner +1 more
TLDR
In this article, a heat spreader is divided into one or more chambers and electromagnetic pumps are placed inside each chamber in a configuration that facilitates easy circulation of liquid metal inside the chamber.Abstract:
Apparatus to provide effective removal of heat from a high power density device. The apparatus has a heat spreader and a heat sink structure. The heat spreader is divided into one or more chambers. Electromagnetic pumps are placed inside each chamber in a configuration that facilitates easy circulation of liquid metal inside the chamber. The liquid metal preferably is an alloy of gallium and indium that has high electrical conductivity and high thermal conductivity. The liquid metal carries heat from a localized area (over the high power density device) and distributes it over the entire spreader. This results in a uniform distribution of heat on the base of the heat sink structure and hence effective removal of heat by the heat sink structure.read more
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High efficiency solid-state light source and methods of use and manufacture
TL;DR: A high-intensity light source is formed by a micro array of a semiconductor light source such as a LEDs, laser diodes, or VCSEL placed densely on a liquid or gas cooled thermally conductive substrate as mentioned in this paper.
Patent
Thermal cycling system
TL;DR: In this article, a real-time PCR system was proposed, which employs a heat block containing a liquid composition to rapidly transfer heat to and from reaction vessels, using the reflective properties of the liquid metal to reflect signal from the PCR into the vessel and out the top.
Patent
Thin film thermoelectric devices for hot-spot thermal management in microprocessors and other electronics
Rama Venkatasubramanian,Randall G. Alley,Pratima Addepalli,Anil J. Reddy,Edward Siivola,Brooks O'Quinn,Kip Coonley,J. B. Posthill,T.S. Colpitts +8 more
TL;DR: In this article, the authors present a structure, system and method for controlling a temperature of a heat generating device in a solid medium, wherein heat is extracted from the medium into at least one heat extraction device, the heat extraction devices dissipates heat into an environment apart from a medium by a heat sink thermally coupled to the heat extracting device; and heat from the Medium is dissipated into the Medium by a first thermal interface material thermally coupling the heat sink to the medium.
Patent
Micro-reflectors on a substrate for high-density led array
TL;DR: In this paper, the authors presented an optical array module that includes a plurality of semiconductor devices mounted on a thermal substrate formed with a plurality openings that function as micro-reflectors, wherein each microreflector includes a layer of reflective material to reflect light.
Patent
Cooling of High Power Density Devices Using Electrically Conducting Fluids
Uttam Ghoshal,Andrew Carl Miner +1 more
TL;DR: In this paper, the authors proposed a system to extract heat from a high power density device and dissipate heat at a convenient distance using a closed conduit with one or more electromagnetic pumps.
References
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Patent
Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action
TL;DR: In this paper, a method and system for harnessing an unsaturated flow of fluid utilizing a reversible unsaturated siphon conductor of fluid having a tubarc porous microstructure was proposed.
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Computer rack heat extraction device
TL;DR: An air conditioning cooling apparatus and method which includes the steps of supplying cooling air generated from a cooling apparatus into an air passageway formed below a floor is described in this paper.
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TL;DR: In this article, a system for thermally conditioning and pumping a fluid is described, which consists of a thermoelectric heat exchanger having a temperature-sensitive device configured to pump heat.
Patent
Thermoelectric power generation systems
TL;DR: In this paper, the authors proposed configurations for improved thermoelectric power generation systems to improve and increase thermal efficiency, and discussed the thermal efficiency of the proposed power generation system.