Modification of a magnussen constant of the Eddy Dissipation model for biomass grate furnaces by means of hot gas in-situ FT-IR absorption spectroscopy

R. Scharler, T. Fleckl, I. Obernberger

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    27 Citations (Scopus)

    Abstract

    In order to use CFD as cost-efficient tool for the design of biomass furnaces, a test of the simulation results is necessary. The present work considers the verification of the whole CFD model (combination of empirical fixed bed model and CFD sub-models) as well as the calibration of an empirical constant of the Eddy Dissipation combustion model. A number of test runs were performed at a biomass furnace with the two fuels fibreboard and wood chips as a reference. The species concentrations and temperatures were measured in-situ at three locations. Taking into consideration possible measurement uncertainties, the simulation results are reasonably accurate for the development of biomass grate furnaces. Moreover, by means of a modification of the Magnussen Constant, the accuracy of the simulation could be significantly improved. [18 Refs; In English]
    Original languageEnglish
    Pages (from-to)102-111
    JournalProgress in computational fluid dynamics
    Volume3
    Issue number2-4
    Publication statusPublished - 2003

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