... assembly on a rotary stage, an IR polarizer, and several optical mirrors to guide the thermal radiation into the FTIR. Detailed description of the instrumentation for measuring the room-temperature reflectance and high-temperature emittance can be found in Ref. [ 12 ]. Greek Symbols Γ...

...Z. M. Zhang; E. T. Enikov; T. Makansi SiGe alloys represent an important type of high-temperature semiconductor material for solid-state energy conversion. In the present study, the near-field radiative heat transfer between heavily doped SiGe plates is investigated. A dielectric function model...

... was deposited atop the thin Au film to prevent oxidation at high temperatures. A SiC wafer was used as the reference to test the emittance measurement facility, which includes a heated sample holder, a blackbody source, mirror assembly, a polarizer, and a Fourier-transform infrared spectrometer with different...

...André Felippe Vieira da Cunha; Marcia B. H. Mantelli High temperature thermosyphons are devices designed to operate at temperatures above 400 ° C . They can be applied in many industrial applications, including heat recovery from high temperature air fluxes. After a short literature review, which...

... reflectometer before and after exposure to the high-temperature heat treatment. An interfacial layer ( TaSi x O y ) formed by the diffusion of Si from the substrate into the deposited film was observed using Auger depth profiling, and the effect of this interfacial layer on the reflectance was measured. Using...

... to this publication during his MPhil program of study. 13 05 2003 24 06 2005 water steel drops sprays two-phase flow cooling mass transfer rotational flow steel industry heat transfer cooling film cooling high temperature droplet sprays and atomization Sprays are used...

...Anquan Wang; Michael F. Modest, Fellow ASME The importance of combined Lorentz-Doppler (or Voigt) broadening of spectral lines in high-temperature radiative heat transfer applications is investigated. Employing narrow-band transmissivities as the criterion, the critical total pressure below which...

... a short length of the fiber is exposed to a high temperature environment, the temperature at the sensing tip can be inferred using the standard two-color approach. If, however, more than a short length of the fiber is exposed to elevated temperatures, emission by the fiber will result in erroneous...

... stagnation flow flow instability forced convection Analytical Boundary Layer Conjugate Flow Forced Convection Heat Transfer High Temperature Impingement Inverse Jets Laminar Thermal Turbulence Unsteady Impinging jets are often used where high rates of heat transfer...

... in the combustion space above the melt are used to heat up the refractory walls of the furnace to sufficiently high temperatures, and the hot refractories in turn supply radiant energy for melting the raw materials. During melting, chemical reactions in the batch produce gas bubbles, which rise toward the surface...

..., 2000; revision received October 12, 2001. Associate Editor: R. D. Skocypec. 15 December 2000 12 October 2001 11 09 2002 radiative transfer heat radiation Heat Transfer High Temperature Modeling Packed Beds Participating Media Porous Media Properties Radiation...

...Jian Ling; Yiding Cao; Alex P. Lopez A radially rotating miniature high-temperature heat pipe employs centrifugal force to return the condensate in the condenser section to the evaporator section. The heat pipe has a simple structure, very high effective thermal conductance and heat transfer...

... Coatings Furnaces High Temperature Optical Fiber Radiation Anderegg F. O. , 1939 , “ Strength of Glass Fibers ,” Industrial Engineering Chemistry , Vol. 31 , pp. 290 – 298 . Anderson O. L. , 1958 , “ Cooling Time of Strong Glass Fibers ,” Journal of Applied Physics , Vol...

... characteristics in the Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division, May 20, 1998; revision received, Nov. 6, 1998. Keywords: Forced Convection, Heat Transfer, High Temperature, Turbulence. Associate Technical Editor...

...T. L. Cox; S. C. Yao Experiments were performed to evaluate the heat transfer of monodisperse sprays of large droplet diameters, ranging from 3 to 25 mm, on high temperature surfaces. This range of drop sizes has not previously been studied, and it was of interest to determine their heat transfer...

.... , and Ricolfi T. , 1989 , “ A Technique for Deriving Emissivity Data for Infrared Pyrometry ,” High Temperatures—High Pressures , Vol. 21 , pp. 303 – 309 . Blair R. , 1960 , “ Determination of Spectral Emissivity of Ceramic Bodies at Elevated Temperature ,” Journal of the American Ceramic...