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EVALUATION OF THE SNB BASED FULL-SPECTRUM CK METHOD FOR THERMAL RADIATION CALCULATIONS IN CO2-H2O MIXTURES

DOI: 10.1615/ICHMT.2004.RAD-4.510
10 pages

Min Yang
Combustion Technology Group, Institute for Chemical Process & Environmental technology National Research Council, Ottawa, Ontario, Canada K1 A 0R6

Hongmei Zhang
Department of Mechanical Engineering, Pennsylvania State University, University Park, PA-16802; Energy and Propulsion Technologies, GE Global Research, One Research Circle, Niskayuna, NY 12309, USA

Resumo

The statistical narrow-band model based full-spectrum correlated-k method was developed for calculations of thermal radiation in non-isothermal and inhomogeneous CO2-H2O-grey particulate mixtures. Two different methods to handle mixtures of CO2 and H2O were proposed. The accuracy and efficiency of these two implementations of the statistical narrow-band based full-spectrum correlated-k method for calculations of thermal radiation in CO2-H2O-N2 mixtures were evaluated against the standard statistical narrow-band correlated-κ method and the optimized 9-band model in the calculations of two non-isothermal problems in a three-dimensional rectangular enclosure. Results of the first implementation method are slightly more accurate but somewhat less efficient than the optimized 9-band model. The second implementation method is very efficient but is also considerably less accurate.

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