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Keywords: absorption coefficients
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2011, 133(10): 102701.
Published Online: August 23, 2011
... gas. Good accuracy can be achieved by the optimal choice of the model’s gray gas absorption coefficient and its weight by application of the absorption-line blackbody distribution functions of individual species in the mixture calculated with a high-resolution spectral database. The SLW-1 model...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2010, 132(2): 023307.
Published Online: December 9, 2009
... inhomogeneities in gas-soot mixtures. In this new method, each species is considered as one scale; the absorption coefficients within each narrow band of every gas scale are divided into M exclusive spectral groups, depending on their temperature dependence. Accurate and compact narrow band multigroup databases...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2010, 132(2): 023406.
Published Online: December 9, 2009
... for each electronic upper state population forming the electronic system. The spectral module for the PMC method was optimized toward computational efficiency for emission calculations, wavelength selections of photon bundles and absorption coefficient calculations in the ray tracing scheme. 19 12...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2010, 132(2): 023306.
Published Online: December 4, 2009
... of TiO 2 particles in polyethylene resin as an absorbing matrix in the wavelength range of 1.7 – 15 μ m based on the MS, FFA, and NFA. We then calculated the effective scattering and absorption coefficients for different models. To investigate the effect of the particle size and volume concentration...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2010, 132(2): 023502.
Published Online: November 30, 2009
... possible the use of this approach not only for the core melt in nuclear fuel-coolant interactions but also for other melt substances, which are widely used in the laboratory experiments. The numerical data demonstrate an effect of absorption coefficient of the particle substance on the rate of particle...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. September 2007, 129(9): 1246–1255.
Published Online: January 18, 2007
...S. S. Sazhin; T. Kristyadi; W. A. Abdelghaffar; S. Begg; M. R. Heikal; S. V. Mikhalovsky; S. T. Meikle; O. Al-Hanbali The values of absorption coefficients of gasoline fuel (BP Pump Grade 95 RON ULG (research octane number unleaded gasoline)), 2,2,4-trimethylpentane ( CH 3 ) 2 CHCH 2 C ( CH 3 ) 3...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. June 2007, 129(6): 743–748.
Published Online: September 27, 2006
... line-by-line integration of the spectral absorption coefficients and is, therefore, impractical. The second approach employs a narrow-band k -distribution database to calculate all parameters as in the original narrow-banded based MSFSK formulation and is, therefore, efficient. This distribution scheme...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2007, 129(4): 559–567.
Published Online: September 24, 2006
... method. A second-order differencing scheme is used for discretization. The numerical results are validated by comparing with results available in the literature. The effects of changes in the refractive index and absorption coefficient due to doping on fiber drawing are investigated. This problem has...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. June 2007, 129(6): 756–758.
Published Online: August 29, 2006
... thermal diffusivity photoreflectance thermoreflectance absorption coefficients heat transfer temperature distribution picosecond photoreflectance thermal diffusivity optical absorption impulse response asymptotic behaviors The thermal characterization of thin deposits or thin films...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2007, 129(3): 342–352.
Published Online: July 5, 2006
... properties for these are obtained from the literatures and a three-band model is developed to represent the values. It is found that radiative heat flux on the surface of the preform is strongly affected by the differences in the absorption coefficient due to doping. However, changes of about 1...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2005, 127(10): 1167–1173.
Published Online: June 7, 2005
... capacity, electron relaxation time, electron conductivity, reflectivity, and absorption coefficient. The proposed model predicts the damage thresholds more accurately than the existing model for gold films when compared with published experimental results. 21 09 2004 07 06 2005 metallic...
Journal Articles
Publisher: ASME
Article Type: Technical Notes
J. Heat Mass Transfer. October 2004, 126(5): 858–861.
Published Online: November 16, 2004
..., and the critical temperature above which Doppler broadening has a significant effect on the absorption coefficient is established for gaseous H 2 O and CO 2 . Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER . Manuscript received by the Heat Transfer Division February...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. February 2002, 124(1): 26–29.
Published Online: May 4, 2001
...S. P. Fuss, ASME Mem.; A. Hamins The Planck mean absorption coefficient, a p , has been calculated for HBr, HCl, and HF over a temperature range from 300 K–2300 K using data from the 1996 edition of the HITRAN molecular database. Plots of a p versus temperature showed monotonically decreasing...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. December 2001, 123(6): 1093–1097.
Published Online: November 3, 2000
...-reciprocal nephelometer in conjunction with gravimetric sampling. The specific absorption coefficient of particulate ash from fires burning D 4 and MM is significantly lower than that of particulate soot from an acetylene (hydrocarbon) flame. Scattering is the dominant part of extinction in fires burning...