Nitric oxide yield from combustion of a low calorific gasification product gas: numerical and experimental study

Brink, Anders; Hupa, Mikko; Kurkela, Esa; Suomalainen, Marjut

doi:10.1504/pcfd.2006.010030

Cited by 3 publications

(1 citation statement)

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“…However, only a limited amount of data are available for validation of CFD models for this application. A few reported studies, i.e., the pilot-scale incinerator work by Samec et al and the bubbling fluidized bed work by Brink et al, deal with freeboard combustion, but none of these studies involves detailed in-furnace measurements.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Gas-Phase Freeboard Combustion. Part 1: Main Combustion Process

Andersen¹,

Jensen²,

Meyer³

et al. 2009

Energy Fuels

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Experimental data for velocity field, temperatures, and gas composition have been obtained from a 50 kW axisymmetric non-swirling natural gas fired combustion setup under two different settings. The reactor was constructed to simulate the conditions in the freeboard of a grate-fired boiler but under well-defined conditions. The experimental results are compared to computational fluid dynamics (CFD) modeling predictions, using the eddy dissipation model (EDM) as well as the eddy dissipation concept (EDC). The use of EDC allows for implementation of more advanced combustion schemes; we have tested the four-step global mechanism by Jones and Lindstedt (Combust. Flame 1988, 73, 233-249), and the 16 species and 41 reaction skeletal mechanism by Yang and Pope (Combust. Flame 1998, 112, 16-32). The CFD model captured the main features of the combustion process and flow patterns. The application of more advanced chemical mechanisms did not improve the prediction of the overall combustion process but did provide additional information about species (especially H 2 and radicals), which is desirable for postprocessing pollutant formation.

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Section: Introductionmentioning

confidence: 99%