Results 131 to 140 of about 83,036 (168)

Thermal Conductivity: IX, Experimental Investigation of Effect of Porosity on Thermal Conductivity

Journal of the American Ceramic Society, 1954
The effect of isometric approximately spherical pores and anisometric cylindrical pores on the thermal conductivity of alumina, graphite, and nickel has been investigated. Pore orientation is found to affect profoundly the thermal conductivity for a given porosity. At temperatures below about 500°C.
J. FRANCL, W. D. KINGERY
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Effective Thermal Conductance of Frost

1983
A model for the effective local thermal conductance of frost is developed that includes both sensible and latent heat effects. The model contains several constants that are evaluated from data of Shah given in the literature. The results are shown as a function of density with local temperature as the parameter.
C. J. Cremers, J. E. White
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Effect of Nanoparticle Coating on the Thermal Conductivity of Microporous Thermal Insulations

Journal of Nanoscience and Nanotechnology, 2010
Microporous thermal insulations were prepared from mixtures of nano-sized fumed silica, micron-sized fibers and opacifier particles. Those micron-sized particles were dry coated with nano-sized fumed silica particles by mechanical process using a compressive-shear type mill.
Dong-Bok, Lee, Hyuk-Chon, Kwon, Yun-Il, Kim, Sung, Park, Jae Chun, Lee, Scott, Misture   +5 more
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EFFECT OF FINITE THERMAL CONDUCTIVITY ON THE THERMAL PERFORMANCE OF A STORAGE MEDIUM

Building and Environment, 1986
Abstract This paper presents an analysis of the effect of finite thermal conductivity on the performance of thermal storage. The geometries of the storage medium considered in the analysis are (i) Semi-infinite slab (ground), (ii) finite slab (wall), (iii) finite slab backed by semi-infinite medium (floor). It is shown that the usual assumption of an
M.S. Sodha, R.L. Sawhney, R. Verma, N.K. Bansal   +3 more
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On the Effective Thermal Conductivity of Saturated Porous Media

Heat Transfer: Volume 1, 2005
Carefully quantified effective thermal conductivity measurements of saturated porous systems are reported. Solid-fluid systems considered include glass-water, glass-air, steel-water, and steel-air. These systems yield solid-fluid conductivity ratios of 1.08, 25.7, 102, and 2400, respectively.
H.T. Aichlmayr, F.A. Kulacki
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Mechanisms and Models of Effective Thermal Conductivities of Nanofluids

Journal of Nanoscience and Nanotechnology, 2010
The physical mechanisms and mathematical models of the effective thermal conductivities of nanofluids have long been of interest to the nanofluid research community because the effective thermal conductivities of nanofluids cannot generally be fully explained and predicted by classical effective medium theories.
Wenhua, Yu, David M, France, Dileep, Singh, Elena V, Timofeeva, David S, Smith, Jules L, Routbort   +5 more
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Effects of conductive particle networks on the effective thermal conductivity of a thermal interface material

2023 29th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC), 2023
Mayer, J. L., Griesinger, A., Willenbacher, N.   +2 more
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PCB Trace Thermal Analysis and Effective Conductivity

Journal of Electronic Packaging, 1992
The electrical current carrying capability of a surface or buried trace located within a fiberglass printed circuit board (PCB), is of important interest in the microelectronics industry. The maximum allowable trace power, hence local integrity and maximum allowable operating temperature, will depend on several parameters including the circuit board ...
T.F. Lemczyk, B. Mack, J.R. Culham, M.M. Yovanovich   +3 more
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Effect of Point Imperfections on Lattice Thermal Conductivity

Physical Review, 1960
The consequences of a simple, phenomenological, theory of lattice thermal conductivity with respect to the effect of point imperfections are summarized. The experimental results of Berman et al. on the effect of varying the concentration of ${\mathrm{Li}}^{6}$ on the conductivity of lithium fluoride are analyzed in detail.
Callaway, Joseph, von Baeyer, Hans C.
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Thermal Effects of Replacing Solder with Conductive Adhesives

Hybrid Circuits, 1993
An important disadvantage of conducting adhesives is their inferior heat conductivity when compared with soft solder such as Sn60Pb40. Thermal simulations, however, show that, by using thinner layers of adhesive than of solder, the module's thermal resistance does not increase greatly.
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