On Thermal Stability Analysis of a Convective and Radiative Slab of Variable Thermal Conductivity with Reactant Consumption
| Autor: | C.C. Chitumwa, Kholeka Constance Moloi, Ramoshweu Solomon Lebelo, Samuel O. Adesanya, M. W. R. Sadiki, P. Baloyi |
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| Rok vydání: | 2018 |
| Předmět: |
Consumption (economics)
Convection 0209 industrial biotechnology Radiation Materials science Numerical analysis 02 engineering and technology Mechanics Condensed Matter Physics Variable (computer science) 020901 industrial engineering & automation Thermal conductivity 0202 electrical engineering electronic engineering information engineering Radiative transfer Slab 020201 artificial intelligence & image processing General Materials Science Thermal stability Physics::Chemical Physics |
| Zdroj: | Defect and Diffusion Forum. 389:195-204 |
| ISSN: | 1662-9507 |
| DOI: | 10.4028/www.scientific.net/ddf.389.195 |
| Popis: | Thermal stability in a stockpile of reactive materials that are assumed to lose heat to the surrounding environment by convection and radiation is studied in this article. The reactant (O2) consumption is also considered and the investigation is modeled in a rectangular slab. The complicated combustion process results with nonlinear interactions and therefore, the nonlinear differential equations governing the problem are solved numerically with the Runge-Kutta Fehlberg Method (RKF45) that is coupled with the Shooting Technique. The behaviors of the temperature and the reactant, due to effects of some embedded kinetic parameters, are depicted graphically and discussed accordingly. The results show that kinetic parameters that increase the temperature of the system, correspondingly increase the reactant consumption. |
| Databáze: | OpenAIRE |
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