Flamelet LES of a semi-industrial pulverized coal furnace
| Autor: | Fabian Proch, Martin Rieth, Andreas M. Kempf, B.M. Franchetti, F. Cavallo Marincola, M. Rabaçal |
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| Rok vydání: | 2016 |
| Předmět: |
Work (thermodynamics)
Pulverized coal-fired boiler business.industry Chemistry 020209 energy General Chemical Engineering General Physics and Astronomy Energy Engineering and Power Technology Coal conversion 02 engineering and technology General Chemistry Mechanics Gas phase Fuel Technology Maschinenbau 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Particle Coal Char 0204 chemical engineering business Large eddy simulation |
| Zdroj: | Combustion and Flame. 173:39-56 |
| ISSN: | 0010-2180 |
| Popis: | The goal of this work is to introduce the flamelet model into large eddy simulation (LES) of realistic coal furnaces. A flamelet table based on two mixture fractions (for volatile and char off-gases) and enthalpy is generated and used in a massively parallel LES of the semi-industrial IFRF coal furnace (Weber et al. 1992 [1, 2]) for which comprehensive experimental data is available enabling the validation of the flamelet model under realistic conditions. Comparison between experiment and simulation is shown by means of averaged quantities of velocities, species concentrations and temperature. Overall good agreement between experiment and simulation could be obtained, giving evidence for the suitability of the flamelet model. The results of the LES are further analyzed, focussing on instantaneous particle and gas phase data to gain additional insight into the coal conversion process inside the furnace. |
| Databáze: | OpenAIRE |
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