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P thermal conductivity

Heremans J. and Beetz, C.P.,. Thermal conductivity and thermopower of vapor-grown graphite fibers J. Phys. Rev.B 32, 1985, p.l981... [Pg.166]

Physical or material properties viscosity /, density p, thermal conductivity k, specific heat Cp, molecular diffusion coefficient D, and permeability P. [Pg.197]

From Fig. 3.36 we observe that the stick is characterized by its density p, thermal conductivity X and sensible heating capacity Cp. The geometric dimensions of the stick are radius R and length 1. The temperature distribution inside the stick results from relation (3.125) as a particularization of Eq. (3.6) ... [Pg.101]

Experience shows that convection heal transfer strongly depends on the fluid properties dynamic viscosity p., thermal conductivity k, density p, and specific heat c, as well as the fluid velocity V. It also depends on the geometry and the roughness of the solid surface, in addition to the type of fluid flow (such as being streamlined or turbulent). Thus, we expect the convection heat transfer relations to be rather complex because of the dependence of convection on so many variables. This is not surprising, since conveclion is die most complex mechanism of heat transfer. [Pg.375]

Lentz, C.P., Thermal conductivity of meats, fats, gelatin, gels, a.nd ice, Eood TechnoL, 15 243-247, 1961. [Pg.107]

Wiener, M., Reichenauer, G., Hemberger, F. and Ebert, H.-P., Thermal conductivity of monolithic synthetic hard carbons as a function of pyrolysis temperature. International Journal of Thermophysics, 2006. 27(6) p. 1826 1843. [Pg.563]

For cubic lattice symmetry the values Pij can be considered as scalars. It now remains to relate the coefficients to the experimentally measured quantities, such as electrical resistivity (p), thermal conductivity (A), thermopower (S), etc. This can be done by rewriting oqs. (2) and (3) in the following way ... [Pg.413]

To determine the efficiency of such a device, let us first consider a simpler model, with only one leg (see Figure 4.2), of electrical resistivity p, thermal conductivity, k and Seebeck coefficient, S. [Pg.205]

Density,p Thermal Conductivity,X Specific Heat, c Poisson s Ratio, CTE, a Young s Modulus, E... [Pg.516]

The increases in melting point and boiling point arise because of increased attraction between the free atoms these forces of attraction are van der Waal s forces (p. 47) and they increase with increase of size. These forces are at their weakest between helium atoms, and helium approaches most closely to the ideal gas liquid helium has some notable characteristics, for example it expands on cooling and has very high thermal conductivity. [Pg.354]

The electronic configuration for an element s ground state (Table 4.1) is a shorthand representation giving the number of electrons (superscript) found in each of the allowed sublevels (s, p, d, f) above a noble gas core (indicated by brackets). In addition, values for the thermal conductivity, the electrical resistance, and the coefficient of linear thermal expansion are included. [Pg.276]

Acrolein is produced according to the specifications in Table 3. Acetaldehyde and acetone are the principal carbonyl impurities in freshly distilled acrolein. Acrolein dimer accumulates at 0.50% in 30 days at 25°C. Analysis by two gas chromatographic methods with thermal conductivity detectors can determine all significant impurities in acrolein. The analysis with Porapak Q, 175—300 p.m (50—80 mesh), programmed from 60 to 250°C at 10°C/min, does not separate acetone, propionaldehyde, and propylene oxide from acrolein. These separations are made with 20% Tergitol E-35 on 250—350 p.m (45—60 mesh) Chromosorb W, kept at 40°C until acrolein elutes and then programmed rapidly to 190°C to elute the remaining components. [Pg.124]

C. Y. Ho, R. W. Powell, and P. E. Liley, Standard Reference Data on the Thermal Conductivity of Selected Materials, part 3, final report NBS-NSR05 Contr. CST-1346, Purdue University, Lafayette, Ind., Sept. 1968. [Pg.432]

Laminate T °C GTE below ppm/°C Water uptake, MIL-P-13949F, mg Dielectric constant at IMH2 Dissipation factor at 1 MH2 Tensde strength, MPa " Modulus of elasticity, GPa Thermal conductivity, W/(m-K)... [Pg.532]

The noise is expressed as noise density in units of V/(Hz), or integrated over a frequency range and given as volts rms. Typically, photoconductors are characterized by a g-r noise plateau from 10 to 10 Hz. Photovoltaic detectors exhibit similar behavior, but the 1/f knee may be less than 100 Hz and the high frequency noise roU off is deterrnined by the p—n junction impedance—capacitance product or the amplifier (AMP) circuit when operated in a transimpedance mode. Bolometers exhibit an additional noise, associated with thermal conductance. [Pg.422]


See other pages where P thermal conductivity is mentioned: [Pg.507]    [Pg.507]    [Pg.74]    [Pg.275]    [Pg.237]    [Pg.192]    [Pg.75]    [Pg.433]    [Pg.1027]    [Pg.879]    [Pg.192]    [Pg.194]    [Pg.507]    [Pg.507]    [Pg.74]    [Pg.275]    [Pg.237]    [Pg.192]    [Pg.75]    [Pg.433]    [Pg.1027]    [Pg.879]    [Pg.192]    [Pg.194]    [Pg.133]    [Pg.457]    [Pg.457]    [Pg.457]    [Pg.458]    [Pg.280]    [Pg.779]    [Pg.15]    [Pg.336]    [Pg.508]    [Pg.49]    [Pg.8]    [Pg.57]    [Pg.378]    [Pg.196]    [Pg.89]    [Pg.517]    [Pg.517]    [Pg.506]    [Pg.86]    [Pg.392]   
See also in sourсe #XX -- [ Pg.109 , Pg.110 , Pg.111 ]




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