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SR4 Combustão |
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Title:
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COMBUSTÃO DE CARVÃO PULVERIZADO: UMA ANÁLISE NUMÉRICA DOS PARÂMETROS PRINCIPAIS
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Summary :
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ABSTRACT: IN THIS WORK PROPOSE A MATHEMATICAL MODEL DESTINED TO THE PULVERIZED COAL COMBUSTION IN THE REACTING FLOW. THE MODEL IS COMPOSED BY EQUATIONS OF THE CHEMICAL KINETICS IN THE EXPONENTIAL FORM, CONCOMITANT EQUATIONS AND OF MASS CHANGE. IT IS TAKEN INTO ACCOUNT THE COMPOSITION OF THE PARTICLE, THE DEVOLATILIZATION AND THE TRANSFORMATION OF CO AND CO2 AS FUNCTION OF THE TEMPERATURE. THE NUMERIC RESEARCHES INDICATE: LARGER CONSUMPTION RATE FOR THE VOLATILE ONES IN RELATION TO THE CARBON; ABRUPT PASSAGE OF THE FORMATION OF CO2 FOR EXCLUSIVE CO FORMATION; DISCHARGES RATES OF CONCENTRATION OF NO AND CO AT THE END OF THE PROCESS; THE INITIAL TEMPERATURE OF THE GAS IS FUNDAMENTAL SO THAT THERE ARE IGNITION AND HIGHER COMBUSTION RATES; THAT THE COEFFICIENT OF OXIDIZER EXCESS IS ONE OF THE DECISIVE FACTORS IN THE COMBUSTION RATE.
KEYWORDS: NUMERICAL ANALYSIS, PARAMETERS, COMBUSTION PRODUCTS
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Author :
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Costa, Valdeci José 0
Krioukov, Viktor 0
Maliska, Clovis R.
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Paper View :
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