Numerical Study of Cylindrical Tropical Woods Pyrolysis Using Python Tool

Nidhoim Assoumani, Merlin Simo-Tagne, Fatima Kifani-Sahban, Ablain Tagne Tagne, Maryam El Marouani, Marcel Brice Obounou Akong, Yann Rogaume, Pierre Girods and André Zoulalian
Additional contact information
Nidhoim Assoumani: Team of Modeling and Simulation in Mechanics and Energetic, Department of Physics, Faculty of Sciences, Mohammed V University, Av Ibn Battouta, PO Box 1014, Rabat 10000, Morocco
Merlin Simo-Tagne: Team of Modeling and Simulation in Mechanics and Energetic, Department of Physics, Faculty of Sciences, Mohammed V University, Av Ibn Battouta, PO Box 1014, Rabat 10000, Morocco
Fatima Kifani-Sahban: Team of Modeling and Simulation in Mechanics and Energetic, Department of Physics, Faculty of Sciences, Mohammed V University, Av Ibn Battouta, PO Box 1014, Rabat 10000, Morocco
Ablain Tagne Tagne: Department of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
Maryam El Marouani: Department of Chemistry, College of Sciences, University of Hafr Al Batin, Hafr Al Batin P.O. Box 39524, Saudi Arabia
Marcel Brice Obounou Akong: Department of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
Yann Rogaume: INRAE, LERMAB, ERBE-F, University of Lorraine, 27 rue Philippe Seguin, CS 60036, 88026 Epinal, France
Pierre Girods: INRAE, LERMAB, ERBE-F, University of Lorraine, 27 rue Philippe Seguin, CS 60036, 88026 Epinal, France
André Zoulalian: INRAE, LERMAB, ERBE, Faculty of Sciences and Techniques, University of Lorraine, P.O. Box 70239, 54506 Vandœuvre-lès-Nancy, France

Sustainability, 2021, vol. 13, issue 24, 1-23

Abstract: In this paper, the thermal behavior of large pieces of wood pyrolysis has been modeled. Two mathematical models coupling heat transfer equations to chemical kinetics were used to predict the pyrolytic degradation of a 25 mm radius wood sample, assumed to be dry in the first model and wet in the second, when heated to 973.15 K. The reactions involved in the pyrolysis process are assumed to be endothermic. The diffusion of bounded water during the process is taken into account in the second model, where the heat transfer equation has been coupled to that of the diffusion of moisture. This model, although simple, provides more information on the drying and pyrolysis processes during the heating of wood, which is its originality. It can therefore be advantageously used to calculate the temperature distribution in a pyrolysis bed. The equations of the two models, discretized by an explicit finite difference method, were solved numerically by a program written in Python. The validation of both models against experimental work in the literature is satisfactory. The two models allow examination of the temperature profile in the radial direction of wood samples and highlighting of the effect of temperature on some thermal, physical and physicochemical characteristics.

Keywords: carbonization; pyrolysis; numerical modeling; Python; cylindrical symmetry; wood (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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