On the Propagation of a Reaction Front Through a Porous Fuel in the Presence of an Opposed Forced Flow: Application to Mixtures Characteristic of Municipal Waste
| Autor: | J. C. Goudeau, X. Zhou, B. Bregeon, Jose L. Torero |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Convection
Chemistry General Chemical Engineering Front (oceanography) General Physics and Astronomy Energy Engineering and Power Technology Autoignition temperature General Chemistry Mechanics Thermal conduction law.invention Incineration Adiabatic flame temperature Ignition system Fuel Technology law Heat transfer Physics::Chemical Physics |
| Zdroj: | Combustion Science and Technology. :123-146 |
| ISSN: | 1563-521X 0010-2202 |
| DOI: | 10.1080/00102209508951919 |
| Popis: | An expression for the propagation velocity of a reaction front in a porous solid material is obtained by using a one-dimensional energy conservation equation. The reaction is divided in two distinct fronts.an ignition front where gasification of large part of the fuel occursand a flamingfront where gas phase oxidation takes place. Forced flow and reaction move in opposite directions, so, from a frame fixed to the front, fuel and air will enter the reaction from one side and products will leave through the other side. The propagation velocity obtained from this analysis is applicable to fuels with a high fraction of volatile materials, such as those characteristic of municipal waste products. The analysis is divided in two parts, the calculation of the propagation velocity and the determination of a critical ignition temperature. For the first part, heat transfer towards the virgin fuel, by convection, conduction and radiation, controls the propagation of the reaction front and an expression for t... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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