Mathematical model of unsteady gas to solid particles heat transfer in fluidized bed

The mathematical model of unsteady one-dimensional gas to particles heat transfer for non-isothermal fluidized bed with periodic heatig of solid particles has been described. The method of numerical solution of governing differential equations, the algorithm and the computer program, have been prese...

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Veröffentlicht in:	Thermal science 2009, Vol.13 (1), p.55-68
Hauptverfasser:	Stojiljkovic, M.M., University of Nis, Nis (Serbia). Faculty of Mechanical Engineering, Stojanovic, B.V., University of Nis, Nis (Serbia). Faculty of Mechanical Engineering, Janevski, J.N., University of Nis, Nis (Serbia). Faculty of Mechanical Engineering, Ilic, G.S., University of Nis, Nis (Serbia). Faculty of Mechanical Engineering
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms COMPUTER SOFTWARE Differential equations ECHANGE THERMIQUE FLUIDIZED BED PROCESSING Fluidized beds Gas temperature GASES GAZ HEAT TRANSFER http://www.fao.org/aos/agrovoc#c_24008 http://www.fao.org/aos/agrovoc#c_24199 http://www.fao.org/aos/agrovoc#c_28599 http://www.fao.org/aos/agrovoc#c_3197 http://www.fao.org/aos/agrovoc#c_3521 http://www.fao.org/aos/agrovoc#c_7229 http://www.fao.org/aos/agrovoc#c_7657 LOGICIEL Mathematical analysis MATHEMATICAL MODELS MODELE MATHEMATIQUE MODELOS MATEMATICOS PROGRAMAS DE ORDENADOR SOLIDE SOLIDOS SOLIDS TEMPERATURA TEMPERATURE Temperature profiles TRAITEMENT EN LIT FLUIDISE TRANSFERENCIA TERMICA TRATAMIENTO EN LECHO FLUIDO
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Zusammenfassung:	The mathematical model of unsteady one-dimensional gas to particles heat transfer for non-isothermal fluidized bed with periodic heatig of solid particles has been described. The method of numerical solution of governing differential equations, the algorithm and the computer program, have been presented. By using mathematical model and computer program, the temperature profiles for interstitial gas, gas in bubbles, and solid particles along the height of fluidized bed in function of time, have been determined. The results obtained on the basis of prediction method are compared to the experimental results of the authors; the satisfactory agreement has been found for interstitial gas temperature and solid particle temperature. On the basis of this comparison, the mathematical model has been verified.
ISSN:	0354-9836 2334-7163
DOI:	10.2298/TSCI0901055S