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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 21, No. 5, 2017, pp. 945-951
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Bioline Code: ja17106
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 21, No. 5, 2017, pp. 945-951
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Modeling and Analytical Simulation of a Smouldering Carbonaceous Rod
MOHAMMED, AA; OLAYIWOLA, RO; ESEYIN, M & WACHIN, AA
Abstract
Modeling of pyrolysis and combustion in a smouldering fuel bed requires the solution of flow, heat
and mass transfer through porous media. This paper presents an analytical method for describing the smouldering of a
porous carbonaceous rod. We assume that no local thermal equilibrium exist between the phases. Also, the initial
temperatures are assumed to depend on space variable. We prove the existence and uniqueness of solution of the model
by actual solution method. The coupled non-linear partial differential equations describing the phenomenon have been
decoupled using parameter-expanding method and solved analytically using eigenfunction expansion technique. The
results obtained were discussed. The study shows that the Frank-Kamenetskii number, Scaled thermal conductivity of
gas and solid phases and Species diffusion coefficient have a significant effects on the slow burning process associated
with porous carbonaceous rod.
Keywords
Pyrolysis; smouldering; combustion; carbonaceous rod; pyrolysis reactions; analytical solution.
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© Copyright 2017 - Journal of Applied Sciences and Environmental Management
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