graphite foam heat exchangers for thermal management

Thermal Management Applications for High Surface

The foam ligaments still conduct heat from the heated surface, but the heat is rejected to a stationary phase and absorbed by the latent heat of fusion of the PCM. The high thermal conductivity of the ligaments allows the heat to be uniformly distributed throughout the PCM volume, and the high surface area ensures that the thermal diffusion distance from ligament to solid PCM is always short.

3116. Utilizing High Thermal Conductivity Graphite

Potentially, the process will lead to a significant reduction in the cost of graphitic-based thermal management materials (i.e., foam- reinforced composites and foam core sandwich structures). This paper reviews the recent work to understand the graphite foam material and also discusses the work being done to prove its utility in actual aircraft heat exchanger designs.

Graphitic Foam Thermal Management Materials for

The goal of this program is to utilize the recently developed high conductivity carbon foam for thermal management in electronics (heat exchangers and heat sinks). The technique used to fabricate the foam produces mesophase pitch-based graphitic foam with extremely high thermal conductivity and an open-celled structure.

Heat Exchangers for Heavy Vehicles Utilizing High

A unique graphite foam developed at the Oak Ridge National Laboratory (ORNL) and licensed to Poco Graphite, Inc., promises to allow for novel, more efficient heat exchanger designs. This graphite foam, Figure 1, has a density between 0.2 and 0.6 g/cm 3 and a bulk thermal

Graphitic Foam Thermal Management Materials for

The goal of this program is to utilize the recently developed high conductivity carbon foam for thermal management in electronics (heat exchangers and heat sinks). The technique used to fabricate the foam produces mesophase pitch-based graphitic foam with extremely high thermal conductivity and an open-celled structure.

Graphite Foam for Cooling of Automotive Power Electronics

heat exchangers. As a result, graphite foam-based heat exchangers or heat sinks could be much smaller and lighter than conventional ones. Fig. 1. SEM image of the high thermal conductivity carbon foam showing highly aligned graphitic ligaments.

Metal foam heat exchangers for thermal management

The present study explores the possibility of using metal foams for thermal management of fuel cells so that air-cooled fuel cell stacks can be commercialized as replacements for currently-available watercooled counterparts. Experimental studies have been conducted to examine the heat transfer enhancement from a thin metal foam layer sandwiched between two bipolar plates of a cell. To do this

Flow and thermal performance of graphite foam

Graphite foam is one kind of favorable materials in thermal engineering applications because of its high thermal conductivity and large specific surface area. However, there is an associated high flow resistance in the graphite foam resulting from the porous structure

Performance of Graphite Foam Evaporator for Use in Thermal Johnathan S. Coursey Management

graphite foam thermosyphon evaporator and discusses the foam's potential for use in the thermal management of electronics. The graphitized carbon foam used in this study is an open-cell porous material that consists of a network of interconnected graphite

CFOAM 35 HTC

CFOAM 35 HTC graphite foam is a graphitized, lightweight, highly-oriented and open-cell carbon foam produced from mesophase pitch feedstock. CFOAM 35 HTC graphite foam has exceptionally high thermal conductivity comparable to that of copper and aluminum with significant weight savings.

SPECIALTY CHEMICALS AND ENGINEERED MATERIALS HTC Graphite

Thermal management applications for our HTC graphite include heat sinks, heat exchangers, heat pipes, evaporative coolers, and phase-change cooling systems. HTC graphite can be laminated into thermal structures for satellite thermal panels and the open

Modeling of Corrugated Graphite Foam Heat

A new manufacturing process was recently developed by the Oak Ridge National Laboratory for the production of graphite foam. The high thermal conductivity and heat transfer area of the foam make it desirable for thermal management applications such as compact heat exchangers. The heat transfer capabilities of the foam are especially useful in internal forced convection applications. However

Graphite Foam for Cooling of Automotive Power Electronics

heat exchangers. As a result, graphite foam-based heat exchangers or heat sinks could be much smaller and lighter than conventional ones. Fig. 1. SEM image of the high thermal conductivity carbon foam showing highly aligned graphitic ligaments.

Development of High Thermal Conductivity, Transportation

Development of High Thermal Conductivity, Low Density Graphite Foam Subject The U.S. Department of Energy is doing research related to advanced materials such as graphite foam. Keywords thermal management, graphite foam Created Date 4/5/2001 10:09

T hermomechanical behavior of a graphite foam Jorge Sanchez

The thermomechanical behavior of a graphite foam derived from pitch for use in thermal management was studied in air up to 150 8C. The damping capacity or loss tangent under flexure was 0.17 at 30 8C for the graphite foam, compared to 0.02 for conventional

Foamed Graphite Heat Exchangers

Find Foamed Graphite Heat Exchangers related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Foamed Graphite Heat Exchangers information. Saint-Gobain Performance Ceramics Refractories Heat Exchanger Tubing sintered alpha silicon carbide offering high purity, fine grain size and extremely low porosity.

Carbon Foam Thermal Management Materials for Electronic

thermal siphon with graphite foam components. • Technology on graphite foam heat exchangers has been transferred to ThermalCentric. They have formed a joint venture with Koppers (manufacturer of foam) to commercialize graphite foam heat exchangers.

Graphite Foam Heat Exchangers for Thermal Management

article{osti_885604, title = {Graphite Foam Heat Exchangers for Thermal Management}, author = {Klett, J. W.}, abstractNote = {Improved thermal management is needed to increase the power density of electronic and more effectively cool electronic enclosures that are envisioned in future aircraft, spacecraft and surface ships. . Typically, heat exchanger cores must increase in size to more

Integration of High‐Conductivity Graphite Foam to

Graphite foams with low, medium, and high densities were joined to Cu‐clad‐Mo, 430 stainless steel, titanium, and Inconel 625 using Cusil‐ABA and Palcusil‐5. Copper‐clad‐molybdenum and steel were also joined to SiC‐coated foam. Well‐bonded joints with partially infiltrated foam and with carbon ligaments enriched with Ti formed in Cusil‐ABA joints of coated and uncoated

Graphite Foam Heat Exchangers for Thermal Management

2021/5/4article{osti_885604, title = {Graphite Foam Heat Exchangers for Thermal Management}, author = {Klett, J. W.}, abstractNote = {Improved thermal management is needed to increase the power density of electronic and more effectively cool electronic enclosures that are envisioned in future aircraft, spacecraft and surface ships.

Heat Exchangers for Heavy Vehicles Utilizing High Thermal

Figure 1. High Thermal Conductivity Graphite Foam. Two devices are currently used for thermal management: heat exchangers, which transfer heat energy from one area of a device to another, and heat sinks, which absorb heat. Currently, most cooling heat

IMERYS Specialty Graphites Carbons for Polymers V5 web

• Thermal management: heat-exchangers, heat sinks, geothermal pipes, LED light sockets,insulation foam • Electrical conductivity: conductive coatings of stora-ge tanks, conductive textiles, primers for electrostatic painting • Antistatic: primers for antistatic •

How to fit a thermoelectric module in a system

Plastic bolt bushes thermally isolate the hot and cold heat exchangers to reduce thermal losses along with the clamping bolts. A thermally insulating foam gasket can be applied around the module which is clamped between the hot and cold heat exchangers to further reduce losses in the system.

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