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Relevant bibliographies by topics / Effective coefficient of thermal conductivity

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Academic literature on the topic 'Effective coefficient of thermal conductivity'

Author: Grafiati

Published: 28 May 2022

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Journal articles on the topic "Effective coefficient of thermal conductivity"

1

Zhang, Bing, and Zhong Qing Cheng. "Study of Effective Thermal Conductivity of Glazed Hollow Bead Concrete." Applied Mechanics and Materials 851 (August 2016): 823–28. http://dx.doi.org/10.4028/www.scientific.net/amm.851.823.

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Based on analyzing the mechanism of thermal conductivity of glazed hollow bead concrete, this paper divides the channels of thermal conductivity in concrete, constructs the model of thermal conductivity coefficient based on the Theory of Minimum Thermal Resistance, and confirms the model by using the data of other related literatures and the data of our own experiment. The consequence indicates that this model can calculate the thermal conductivity coefficient under arid state exactly. In order to improve the accuracy of this model, we should take the shape of framework, the interface thermal

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de Oliveira Cardozo, Giovano, and José Pedro Rino. "Molecular Dynamics Calculations of InSb Thermal Conductivity." Defect and Diffusion Forum 297-301 (April 2010): 1400–1407. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.1400.

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Equilibrium and non-equilibrium molecular dynamics calculations of thermal conductivity coefficient are presented for bulk systems of InSb, using an effective two- and three-body inter atomic potential which demonstrated to be very transferable. In the calculations, the obtained coefficients were comparable to the experimental data. In the case of equilibrium simulations a Green-Kubo approach was used and the thermal conductivity was calculated for five temperatures between 300 K and 900 K. For the non equilibrium, or direct method, which is based on the Fourier’s law, the thermal conductivity

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Alsabry, A., V. I. Nikitsin, V. A. Kofanov, and B. Backiel-Brzozowska. "An Analysis of Relations for Determining the Thermal Conductivity of Rigid Polymer Foams." International Journal of Applied Mechanics and Engineering 23, no. 4 (2018): 1015–23. http://dx.doi.org/10.2478/ijame-2018-0058.

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Abstract In the paper the authors present the effectiveness of the generalized thermal conductivity method for polymer foams, including modelling their geometrical structure. Calculations of the effective thermal conductivity coefficient λ are based on the generally accepted assumption of the additivity of different thermal exchange mechanisms in porous media and this coefficient is presented as a sum the coefficients of conductive λq, radiative λp, and convective λk thermal conductivity. However, in literature not enough attention is given to relations determined by means of the theory of gen

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Korinchuk, D. M. "EFFECTIVE COEFFICIENT OF THERMAL CONDUCTIVITY OF BIOFUEL IN THE CONDITIONS OF HIGH-TEMPERATURE DRYING." Industrial Heat Engineering 40, no. 2 (2018): 49–55. http://dx.doi.org/10.31472/ihe.2.2018.07.

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The paper is devoted to determining the effective thermal conductivity coefficient of a mathematical model of high temperature drying biomass. The method of experimental research kinetics of drying and theoretical processing of the results is developed. The results of the research are presented. The average value of the effective coefficient of thermal conductivity is calculated and the possibility of its application in calculations of high temperature drying of biomass is substantiated. The modeling of high-temperature drying of biomass and peat will allow developing and substantiat-ing

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Li, Yongfeng, Chuansong Wu, and Maoai Chen. "Effects of Ultrasonic Vibration on the Transport Coefficients in Plasma Arc Welding." Metals 10, no. 3 (2020): 312. http://dx.doi.org/10.3390/met10030312.

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In ultrasound assisted plasma arc welding (U-PAW), the exerted ultrasonic vibration on the tungsten electrode interacts with the plasma arc and changes its heat-pressure characteristics. It is of great significance to investigate the underlying interaction mechanism. In this study, the calculation method of transport coefficients in U-PAW is developed. Translational thermal conductivity (including electrons thermal conductivity and the thermal conductivity of heavy particles) and electrical conductivity are calculated by considering the second-order approximation of Maxwell velocity distributi

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Vallabh, Rahul, Pamela Banks-Lee, and Massoud Mohammadi. "Determination of Radiative Thermal Conductivity in Needlepunched Nonwovens." Journal of Engineered Fibers and Fabrics 3, no. 4 (2008): 155892500800300. http://dx.doi.org/10.1177/155892500800300406.

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Radiation heat transfer is found to be the dominant mode of heat transfer at temperatures higher than 400–500K [11]. Convection heat transfer being negligible in nonwovens, effective thermal conductivity is given by the sum of its conduction and radiation components. In this research two methods were identified to determine radiative thermal conductivity of needlepunched samples made from Nomex fibers. The first method involved the determination of radiative thermal conductivity using effective (total) thermal conductivity determined using a Guarded Hot Plate (GHP) instrument. In the second me

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Sugio, Kenjiro, Rio Yamada, Yong Bum Choi, and Gen Sasaki. "Effect of the Interfacial Thermal Resistance on Effective Thermal Conductivity of Al/SiC Particle-Dispersed Composites." Materials Science Forum 879 (November 2016): 1889–94. http://dx.doi.org/10.4028/www.scientific.net/msf.879.1889.

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Steady state thermal conductivity measuring device was designed to measure the effective thermal conductivity of composites. Computer simulations of thermal conduction revealed that the designed device over estimates the effective thermal conductivity, and the correction coefficient was suggested. With this designed device, the effective thermal conductivities of Al/SiC particle-dispersed composites were measured by changing the size of SiC particles from 0.3 μm to 3 μm. The critical element size which could determine the optimal size of reinforcements have been suggested, and validity of the

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Grucelski, Arkadiusz. "Effective thermal conductivity in granular media with devolatilization: the Lattice Boltzmann modelling." International Journal of Coal Science & Technology 8, no. 4 (2021): 590–604. http://dx.doi.org/10.1007/s40789-020-00395-0.

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AbstractFlow thermomechanics in reactive porous media is of importance in industry including the thermal processing of fossil fuel (coking understood as a slow pyrolysis) involving devolatilisation. On the way to provide a detailed description of the process, a multi-scale approach was chosen to estimate effective transport coefficients. For this case the Lattice Boltzmann method (LBM) was used due to its advantages to accurately model multi-physics and chemistry in a random geometry of granular media. After account for earlier studies, the paper presents description of the model with improved

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Hong, Min Hee, Chang Sun Park, Yong June Choi, Hong Sup Lee, and Hyung Ho Park. "Mesoporous Thin Films: Thermoelectric Application." Applied Mechanics and Materials 260-261 (December 2012): 34–39. http://dx.doi.org/10.4028/www.scientific.net/amm.260-261.34.

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The efficiency of a thermoelectric device depends on material properties through the figure of merit, Z = σS2/κ, where σ, S, and κ are electrical conductivity, Seebeck coefficient, and thermal conductivity, respectively. To maximize the thermoelectric figure of merit of a material, high electrical conductivity, high Seebeck coefficient, and low thermal conductivity are required. This work has focused on the synthesis of a mesoporous titania films for its application in thermoelectric generation. The mesoporous titania film was synthesized with titanium tetraisopropoxide. The triblock copolymer

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Wyczółkowski, Rafał, and Agnieszka Benduch. "The Experimental Study of the Effective Thermal Conductivity of Bundles of Rectangular Steel Sections/ Badania Eksperymentalne Efektywnej Przewodności Cieplnej Wiązek Stalowych Profili Prostokątnych." Civil And Environmental Engineering Reports 14, no. 3 (2014): 119–32. http://dx.doi.org/10.1515/ceer-2014-0030.

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Abstract Bundles of rectangular steel sections are examples of the porous charge. Due to the voids within the sections, this type of charge is characterized by porosity even exceeding 85%. This makes the thermal properties of these elements, expressed by the effective thermal conductivity kef, totally different from the thermal conductivity of steel. The value of the kef coefficient depends on many factors such as: the ratio of the thermal conductivity of steel to that of gas, the structure of the solid matrix and its porosity and the lack of the continuity of the steel phase. The paper descri

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Dissertations / Theses on the topic "Effective coefficient of thermal conductivity"

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Kumar, Prashant. "Investigation of Kelvin-like solid foams for potential engineering applications : an attractive set of geometrical and thermo-hydraulic properties." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4730/document.

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Les mousses à cellules ouvertes ont diverses applications industrielles, par exemple pour des échangeurs de chaleur, des réacteurs structurés, la filtration, la catalyse, récepteurs solaires volumétriques en raison de leurs propriétés uniques telles qu'une importante porosité et une surface spécifique élevée. Pour déterminer théoriquement la surface spécifique géométrique et les relations entre les paramètres géométriques de mousses, une corrélation mathématique généralisée a été développée. A cet effet, la géométrie de la tetrakaidecahedron a été utilisé et différentes formes de sections tran

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Karayacoubian, Paul. "Effective Thermal Conductivity of Composite Fluidic Thermal Interface Materials." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2881.

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Thermally enhanced greases made of dispersions of small conductive particles suspended in fluidic polymers can offer significant advantages when used as a thermal interface material (TIM) in microelectronics cooling applications. A fundamental problem which remains to be addressed is how to predict the effective thermal conductivity of these materials, an important parameter in establishing the bulk resistance to heat flow through the TIM. <br /><br /> The following study presents the application of two simple theorems for establishing bounds on the effective thermal conductivity of suc

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Folsom, Charles P. "Effective Thermal Conductivity of Tri-Isotropic (TRISO) Fuel Compacts." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1448.

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Thermal conductivity is an important thermophysical property needed for effectively predicting nuclear fuel performance. As part of the Next Generation Nuclear Plant (NGNP) program, the thermal conductivity of tri-isotropic (TRISO) fuel needs to be measured over a temperature range characteristic of its usage. The composite nature of TRISO fuel requires that measurement be performed over the entire length of the compact in a non-destructive manner. No existing measurement system is capable of performing such a measurement. A measurement system has been designed based on the steady-state, guard

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Anderson, Lucas Samuel. "Effective Thermal Conductivity of Carbon Nanotube-Based Cryogenic Nanofluids." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1753.

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Nanofluids consist of nanometer-sized particles or fibers in colloidal suspension within a host fluid. They have been studied extensively since their creation due to their often times anomalous and unique thermal transport characteristics. They have also proven to be quite valuable in terms of the scientific knowledge gained from their study and their nearly unlimited industrial and commercial applications. This research has expanded the science of nanofluids into a previously unexplored field, that of cryogenic nanofluids. Cryogenic nanofluids are similar to traditional nanofluids in that the

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Garrett, R. Daniel. "Anisotropic Compressive Pressure-Dependent Effective Thermal Conductivity of Granular Beds." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1000.

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In situ planetary effective thermal conductivity measurements are typically made using a long needle-like probe, which measures effective thermal conductivity in the probe‟s radial (horizontal) direction. The desired effective vertical thermal conductivity for heat flow calculations is assumed to be the same as the measured effective horizontal thermal conductivity. However, it is known that effective thermal conductivity increases with increasing compressive pressure on granular beds and horizontal stress in a granular bed under gravity is related to the vertical stress through Jaky‟s at-rest

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Madrid, Lozano Francesc. "Thermal Conductivity and Specific Heat Measurements for Power Electronics Packaging Materials. Effective Thermal Conductivity Steady State and Transient Thermal Parameter Identification Methods." Doctoral thesis, Universitat Autònoma de Barcelona, 2005. http://hdl.handle.net/10803/5348.

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Wood, Sandra Jean. "Determination of effective thermal conductivity of media surrounding underground transmission cables." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/17390.

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Shaikh, Samina. "Effective thermal conductivity measurements relevant to deep borehole nuclear waste disposal." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41301.

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Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2007.<br>Includes bibliographical references (leaves 106-107).<br>The objective of this work was to measure the effective thermal conductivity of a number of materials (particle beds, and fluids) proposed for use in and around canisters for disposal of high level nuclear waste in deep boreholes. This information is required to insure that waste temperatures will not exceed tolerable limits. Such experimental verification is essential because analytical models and empirical correlations can

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Al-Halhouli, K. A. "Effective thermal conductivity and related bulk and surface studies of catalyst pellets." Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374499.

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Raed, Khaled. "Investigation of Knudsen and gas‐atmosphere effects on effective thermal conductivity of porous media." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-117386.

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Die vorliegende Arbeit befasst sich mit Untersuchung der gekoppelten Einflüsse ‎von Gasart, Porengröße und Porengrößenverteilung auf die effektive ‎Wärmeleitfähigkeit nicht-durchströmter poröser Materialien (Dämmstoffe). Diese ‎Zusammenhänge sind bisher nur ansatzweise bekannt und für eine spätere ‎praktische Anwendung von zunehmend großer Bedeutung. Um dies zu erreichen ‎wurden 12 verschiedene hoch poröse Materialien (Porosität höher als 70 %) ‎ausgewählt, die unterschiedlichen Porengrößenverteilungen im Makro- Mikro- und ‎Nanobereich haben. Die effektive Wärmeleitfähigkeit wurde hauptsachlic

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Books on the topic "Effective coefficient of thermal conductivity"

1

Al-Meshragi, Mohamed. Effective thermal conductivity of catalyst pellets. University of Salford, 1985.

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A, Wakeham W., and Ho C. Y. 1928-, eds. Transport properties of fluids: Thermal conductivity, viscosity, and diffusion coefficient. Hemisphere Pub. Corp., 1988.

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Al-Halhouli, Khalil Ali. Effective thermal conductivity and related bulk and surface studies of catalyst pellets. University of Salford, 1986.

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Davies, Gareth N. L. Heat driven adsorption cooling utilising enhanced effective thermal conductivity monolithic adsorbent generators for refrigeration and ice production in developing countries. typescript, 2000.

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Center, Langley Research, ed. Effective thermal conductivity of high temperature insulations for reusable launch vehicles. National Aeronautics and Space Administration, Langley Research Center, 1999.

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United States. National Aeronautics and Space Administration., ed. Effective thermal conductivity of an aluminum foam + water two phase system: A thesis ... National Aeronautics and Space Administration, 1996.

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United States. National Aeronautics and Space Administration., ed. Analysis of effective thermal conductivity of fibrous materials: Final report for NASA grant NAG 9-532. Dept. of Mechanical Engineering, University of Houston, 1993.

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United States. National Aeronautics and Space Administration., ed. Analysis of effective thermal conductivity of fibrous materials: Final report for NASA grant NAG 9-532. Dept. of Mechanical Engineering, University of Houston, 1993.

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United States. National Aeronautics and Space Administration., ed. Heat conduction in ceramic coatings: Relationship between microstructure and effective thermal conductivity : technical report for task 2 (second year) : (period of performance, February 7, 1998-May 6, 1998). National Aeronautics and Space Administration, 1998.

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Book chapters on the topic "Effective coefficient of thermal conductivity"

1

Booth, J. R., R. S. Graves, and D. W. Yarbrough. "Effective Diffusion Coefficients for CFC-11 by Gravimetric Depletion from Thin Slices of PIR Foam." In Thermal Conductivity 23. CRC Press, 2021. http://dx.doi.org/10.1201/9781003210719-36.

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2

Reedeker, P. G., A. Frydman, and J. A. Barclay. "A Laboratory Apparatus to Determine Fluid-Solid Heat Transfer Coefficient and Effective Thermal Conductivity of Solid Porous Media." In Advances in Cryogenic Engineering. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4215-5_98.

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Gooch, Jan W. "Coefficient of Thermal Conductivity." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2538.

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Marcussen, Lis. "Mathematical Models for Effective Thermal Conductivity." In Thermal Conductivity 18. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-4916-7_55.

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Cremers, Clifford J. "Effective Thermal Diffusivity of Powdered Coal." In Thermal Conductivity 18. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-4916-7_65.

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Schulz, B. "On the Effective Thermal Diffusivity of Macroscopic Heterogeneous Two Phase Materials." In Thermal Conductivity 18. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-4916-7_4.

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Maillet, D., A. Degiovanni, and S. André. "Estimation of a Space-Varying Heat Transfer Coefficient or Interface Resistance by Inverse Conduction." In Thermal Conductivity 23. CRC Press, 2021. http://dx.doi.org/10.1201/9781003210719-10.

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Smith, David R., and Lambert J. Van Poolen. "A Guarded Hot Plate Apparatus for Effective Thermal Conductivity of Insulations at 80–360 K." In Thermal Conductivity 18. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-4916-7_25.

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Minea, Vasile. "Determination of Ground/Soil Effective Thermal Conductivity." In Heating and Cooling with Ground-Source Heat Pumps in Cold and Moderate Climates. CRC Press, 2022. http://dx.doi.org/10.1201/9781003032540-6.

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Singh, Ramvir. "Predictions of Effective Thermal Conductivity of Complex Materials." In Advanced Structured Materials. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/8611_2010_5.

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Conference papers on the topic "Effective coefficient of thermal conductivity"

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Abgaryan, Karine, and Ilya Kolbin. "NANOSIZED HETEROSTRUCTURES EFFECTIVE THERMAL CONDUCTIVITY COEFFICIENT MODELING USING MACHINE LEARNING." In Mathematical modeling in materials science of electronic component. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1520.mmmsec-2020/63-66.

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In this work we construct neural network models of the effective thermal conductivity coefficient for heterogeneous nanostructures using GaAs / AlAs superlattices as an example; training sets are obtained from the modal suppression method

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Tomimura, Toshio, Yoshihiro Shiotsu, Yasushi Koito, Masaru Ishizuka, and Tomoyuki Hatakeyama. "Evaluation of Effective Thermal Conductivity of Multilayer Printed Circuit Board." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44232.

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To perform a rational thermal design of a printed circuit board (PCB) with highly anisotropic heat transfer nature in its initial stage, effective thermal conductivities in thickness direction and in in-plane direction must be given depending on the electric circuit of the board. However, a simple evaluation method for the effective thermal conductivities of such PCB has not been developed yet. In this study, as the first step to propose a simple evaluation method, the heat transfer coefficient by natural convection around a horizontal disk, which is indispensable for measuring the effective t

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Ababneh, Mohammed T., Pramod Chamarthy, Shakti Chauhan, Frank M. Gerner, Peter de Bock, and Tao Deng. "Thermal Modeling for High Thermal Conductivity Thermal Ground Planes." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58115.

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Thermal ground planes (TGPs) are flat, thin (external thickness of 2 mm) heat pipes which utilize two-phase cooling. The goal is to utilize TGPs as thermal spreaders in a variety of microelectronic cooling applications. TGPs are novel high-performance, integrated systems able to operate at a high power density with a reduced weight and temperature gradient. In addition to being able to dissipate large amounts of heat, they have very high effective axial thermal conductivities and (because of nano-porous wicks) can operate in high adverse gravitational fields. A three-dimensional (3D) finite el

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Ohmura, Takahiro, Kanji Hanashima, Junichi Nyumura, and Toshiyuki Sawa. "Measurements of Thermal Properties of Gaskets for the Design of Bolted Flange Joints Under Thermal Conduction Conditions." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93215.

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In this study, the thermal properties of the gaskets, which were used for designing the bolted flange joints, such as effective thermal conductivity, specific heat, linear thermal expansion coefficient and so on were measured. Especially, the effective thermal conductivities were measured by using the heat flow method. The relationship between the gasket structure and the thickness was shown by using an equivalent thermal resistance, and an empirical equation of effective thermal conductivity, which was related to the bulk density and absolute temperature, was proposed by deriving the heat con

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Nutsugah, Redeemer, Patrick Mensah, Stephen Akwaboa, and Michael Martin. "Pressure and Thermophysical Property of Gas Dependence of Effective Thermal Conductivity of a Porous Silica Insulator." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53011.

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The thermal conductivity of a high-temperature calcium silicate block insulation product was measured in gaseous environments at pressures up to 100 bar at room temperature. The thermal conductivity of the porous material was tested in nitrogen, argon, and carbon dioxide gaseous environments. These tests were performed in a newly-constructed pressure chamber integrated with a thermal conductivity testing device. A standardized testing method was employed in the design of the apparatus. The test method used was based on the ASTM c177, the guarded-hot-plate method [1]. Tests performed in a carbo

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Koronaki, I. P., M. T. Nitsas, and V. Papaefthimiou. "A Review on the Thermal Conductivity and Viscosity Models of Nanofluids: Impact on Convection Coefficient Calculations." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37968.

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Recent advances in technology have given the opportunity of developing structures of nanometer scale suitably dispersed in base fluids. The term nanofluids, introduced by Stephen U.S Choi, describes the liquid suspensions which contain these structures (nanoparticles, nanotubes, nanodroplets etc). Even though the branch of nanotechnology, where nanofluids can be categorized, is in its infancy the growth of research work in terms of engineering applications that has been done already indicates the interest of researchers in nanofluids. As mentioned above a lot of research work, both experimenta

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Travkin, V. S., and I. Catton. "Analysis of Measuring Techniques of Superlattices Thermal Conductivity." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24348.

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Abstract It has been reported in a number of publications that measured values of superlattice thermal conductivities, for example, GaAs/AlAs, Si/Ge, InAs/AlSb, etc., do not compare well with expected or modeled values. There are questions about measurement techniques that are used and some improvements are being made. One of the used techniques is the 3 (omega) measurement of thermal conductivity of superlattices. Some of these issues will be addressed in our work. The full two-scale heat transport and electrodynamics governing equations are used to achieve understanding of the possible mecha

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Massoudi, Mehrdad, and Tran X. Phuoc. "A Simple Model for the Effective Thermal Conductivity of a Particulate Mixture." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32493.

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When a coal stockpile is stored in the presence of air, slow oxidation of the carbonaceous materials occurs and heat is released. If the rate of heat generation within the stockpile is greater than the rate of heat dissipation and transportation to the external environment, the self-heating of the coal stockpile ensues. The self-heating of coal stockpiles has a long history of posing significant problems to coal producers because it lowers the quality of coal and may result in hazardous thermal runaway. Precise prediction of the self-heating process is, therefore, necessary in order to identif

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Playford, James D., S. Midturi, and S. B. Pidugu. "Thermal Characterization of Aluminum and Steel Foams." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85609.

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Metallic foams are a new class of ultra-lightweight materials with potential applications in such industries as automobile, aerospace, and energy industries. These materials when realized in product form can serve as efficient heat exchanges, energy absorbers, and thermal protective and hydrogen storage devices. Accurate determination of thermal conductivity and understanding of heat transfer characteristics is important in designing such products incorporating metal foams. The present research characterizes the effective thermal conductivity and heat transfer characteristics of DUOCEL AL 6106

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Tian, Zhiting, Sang Kim, Ying Sun, and Bruce White. "A Molecular Dynamics Study of Thermal Conductivity in Nanocomposites via the Phonon Wave Packet Method." In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89272.

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The phonon wave packet technique is used in conjunction with the molecular dynamics simulations to directly observe phonon scattering at material interfaces. The phonon transmission coefficient of nanocomposites is examined as a function of the defect size, thin film thickness, orientation of interface to the heat flow direction. To generalize the results based on phonons in a narrow frequency range and at normal incidence, the effective thermal conductivity of the same nanocomposite structure is calculated using non-equilibrium molecular dynamics simulations for model nanocomposites formed by

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Reports on the topic "Effective coefficient of thermal conductivity"

1

M.J. Anderson, H.M. Wade, and T.L. Mitchell. Invert Effective Thermal Conductivity Calculation. Yucca Mountain Project, Las Vegas, Nevada, 2000. http://dx.doi.org/10.2172/894317.

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DOE. SPENT NUCLEAR FUEL EFFECTIVE THERMAL CONDUCTIVITY REPORT. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/778872.

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Matthew D. Hinds. Determination of BWR Spent Nuclear Fuel Assembly Effective Thermal Conductivity. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/790801.

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N.D. Francis. Effective Thermal Conductivity For Drift-Scale Models Used In TSPA-SR. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/894177.

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Bahney, Robert. Effective thermal conductivity method for predicting spent nuclear fuel cladding temperatures in a dry fill gas. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/757327.

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Friedman, Shmuel, Jon Wraith, and Dani Or. Geometrical Considerations and Interfacial Processes Affecting Electromagnetic Measurement of Soil Water Content by TDR and Remote Sensing Methods. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580679.bard.

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Abstract:

Time Domain Reflectometry (TDR) and other in-situ and remote sensing dielectric methods for determining the soil water content had become standard in both research and practice in the last two decades. Limitations of existing dielectric methods in some soils, and introduction of new agricultural measurement devices or approaches based on soil dielectric properties mandate improved understanding of the relationship between the measured effective permittivity (dielectric constant) and the soil water content. Mounting evidence indicates that consideration must be given not only to the volume frac

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Levinson, Ronnen, Delp Wm. Woody, Darryl Dickerhoff, and Mark Modera. Effects of air infiltration on the effective thermal conductivity of internal fiberglass insulation and on the delivery of thermal capacity via ducts. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/764330.

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