Paper Titles

Experimental Study on Impact Resistance of Concrete Containing Steel Fibers
p.1

Investigation of a Steel Local Corrosion in Chloride-Containing Media
p.7

Transient Heat Analysis in a Two-Step Radiative Combustible Slab
p.15

Identifying the Weight of Factors Affecting Creep of Concrete Using Factorial ANOVA
p.21

Influence of Reactive Oxygen Gas on Sputtered-Vanadium Oxide Films under Post-Annealing in Vacuum
p.27

Protein Extraction from Spirulina platensis by Using Ultrasound Assisted Extraction: Effect of Solvent Types and Extraction Time
p.33

Using Taguchi Grey Relational Analysis Multi-Object of Process Parameters in Electric Resistance Welding of Wire to Recovery AISI1045 Steell Shaft
p.39

Mechanical Properties Optimization of the Elastomeric Matrix Reinforced Composite Material with Cabuya Fiber, Using the DOE/Complete Factorial Design and Desirability Function
p.45

HomeKey Engineering MaterialsKey Engineering Materials Vol. 872Transient Heat Analysis in a Two-Step Radiative...

Transient Heat Analysis in a Two-Step Radiative Combustible Slab

Article Preview

Abstract:

In this article, analysis of heat transfer in a stockpile of reactive materials modelled in a rectangular slab is carried out. A two-step exothermic chemical reaction is assumed and the heat loss to the surrounding environment is by radiation. The ordinary differential equation (ODE) governing the problem is tackled numerically by Runge-Kutta Fehlberg (RKF45) method coupled with Shooting technique. The heat transfer analysis is simplified by investigation some kinetic parameters’ effects on the temperature of the combusting system. It was found out that some kinetic parameters raise the levels of the temperature by encouraging the exothermic chemical reaction, whereas some, reduce the levels of the temperature to slow down the heat transfer rate. The results are depicted graphically and discussed accordingly.

You might also be interested in these eBooks

Applied Engineering, Materials and Mechanics IV

Info:

Periodical:

Key Engineering Materials (Volume 872)

Pages:

15-19

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.872.15

Citation:

Cite this paper

Online since:

January 2021

Authors:

Ramoshweu Solomon Lebelo*, Kholeka Constance Moloi

Keywords:

Combustible Materials, Heat Transfer, Numerical Methods, Rectangular Slab, Two-Step Exothermic Chemical Reaction

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2021 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] G. Nyamadzawo, W. Gwenzi, A. Kanda1, A. Kundhlande, C. Masona, Understanding the Causes, socio-economic and environmental impacts, and management of veld fires in tropical Zimbabwe, Fire Sci. Rev. 2(2) (2013) 1-13.

DOI: 10.1186/2193-0414-2-2

[2] R. S. Lebelo, Thermal conductivity impact on thermal stability of reactive materials, Diff. Foundat. 11 (2017) 1-10.

[3] R. Kaji, Y. Hishinuma, Y. Nakamura, Low temperature oxidation of coals: effects of pore structure and coal composition, Fuel, 64 (1985) 297-302.

DOI: 10.1016/0016-2361(85)90413-2

[4] R. S. Lebelo, Thermal stability investigation in a reactive sphere of combustible material, Adv. Math. Phys. (2016) 1-9.

[5] E. R. Monazam, L. J. Shadle, A. Shamsi, Spontaneous combustion of char stockpiles, Energ. Fuels, 12 (1998) 1305-1312.

DOI: 10.1021/ef980094m

[6] R. S. Lebelo, O. D. Makinde, Numerical investigation of CO2 emission and thermal stability of a convective and radiative stockpile of reactive material in a cylindrical pipe, Adv. Mech. Eng. 7(12) (2015) 1-11.

DOI: 10.1063/1.4898446

[7] O. D. Makinde, On the thermal decomposition of reactive materials of variable thermal conductivity and heat loss characteristics in a long pipe, J. Energetic Mat. 30 (2012) 283-298.

DOI: 10.1080/07370652.2011.566598

[8] J. M. Simmie, Detailed chemical kinetic model for the combustion of hydrocarbon fuels, Prog. Energy Combust. Sci. 29 (2003) 599-634.

DOI: 10.1016/s0360-1285(03)00060-1

[9] R. S. Lebelo, O. D. Makinde, Modelling the impact of radiative heat loss on CO2 emission, O2 depletion and thermal stability in a reactive slab, IJST, Trans. Mech. Eng. 39(M2) (2015) 351-365.

[10] A. M. K. Legodi, O. D. Makinde, A numerical study of steady state exothermic reaction in a slab with convective boundary conditions, Int. J. Phys. Sci. 6 (2011) 2541-2549.

[11] R. S. Lebelo, K. C. Moloi, C. C. Chitumwa, M. W. R. Sadiki, P. Baloyi, M. S. Muthuvalu, On heat transfer of a convective radiating cylinder, J. Phys: Conf. Series 1123 (2018) 1-6.

DOI: 10.1088/1742-6596/1123/1/012037

[12] O. D. Makinde, Hermite-Pade' approach to thermal stability of reacting masses in a slab with asymmetric convective cooling, J. Franklin Inst. 349 (2012) 957-965.

DOI: 10.1016/j.jfranklin.2011.12.001

[13] R. S. Lebelo, Convective and radiative heat loss impact on CO2 emission, O2 depletion and thermal stability in a reactive slab of variable thermal conductivity, IEEE Conf. Rec. 36345 (2015).

DOI: 10.1109/wsmeap.2015.7338199

[14] B. H. Hamza, E. S. Massawe, O. D. Makinde, Analysis of transient heating due to exothermic reaction in a stockpile of combustible material, Int. J. Phys. Sci. 6(18) (2011) 4337-4341.

[15] R. S. Lebelo, Numerical investigation of CO2 emission and thermal stability of a convective and radiative stockpile of reactive material in a cylindrical pipe of variable thermal conductivity, AIP Conf. Proc. 1621 (2014) 60-68.

DOI: 10.1063/1.4898446

[16] R. S. Lebelo, O. D. Makinde, T. Chinyoka, Thermal decomposition analysis in a sphere of combustible materials, Adv. Mech. Eng. 9 (2) (2017) 1-14.

DOI: 10.1177/1687814017692515

[17] O. D. Makinde, M. S. Tshehla, Analysis of thermal stability in a convecting and radiating twostep reactive slab, Adv. Mech. Eng. (2013) 1-9.

DOI: 10.1155/2013/294961

[18] R. S. Lebelo, K. C. Moloi, K. O. Okosun, M. Mukamuri, S. O. Adesanya, M. S. Muthuvalu, Two-step low-temperature oxidation for thermal stability analysis of a combustible sphere, AEJ 57 (2018) 2829-2835.

DOI: 10.1016/j.aej.2018.01.006