Computational Fluid Dynamic Study of Biomass Cook Stove-Part 2: Devolatilization and Heterogeneous Combustion

Zakir Husain; Shashank S. Tiwari; Akshansh Kataria; Channamallikarjun S. Mathpati; Aniruddha B. Pandit; Jyeshtharaj B. Joshi

doi:10.1021/acs.iecr.9b07109

Computational Fluid Dynamic Study of Biomass Cook Stove-Part 2: Devolatilization and Heterogeneous Combustion

Zakir Husain, Shashank S. Tiwari, Akshansh Kataria, Channamallikarjun S. Mathpati, Aniruddha B. Pandit^*, Jyeshtharaj B. Joshi^*

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

In this study, we have developed a novel model to include the spatial heterogeneity for the combustion of volatiles in the presence of oxygen inside a biomass cookstove (BCS). Three-dimensional computational fluid dynamic simulations of BCS were done to evaluate the dynamics of spatial heterogeneity incurred during biomass combustion. The proposed methodology prescribes the mass release rate of the fuel as a dynamic boundary condition that evolves as per the changing temperature in the void spaces of the packed bed. The temporally evolving mass release rate due to the change in temperatures of the void spaces is calculated iteratively and set as the inlet boundary condition on the particle surfaces using an empirical correlation. The validation studies showed that the time-averaged outlet temperatures predicted from the model are in good agreement with the experimentally obtained values.

Original language	English
Pages (from-to)	14507-14521
Number of pages	15
Journal	Industrial and Engineering Chemistry Research
Volume	59
Issue number	32
DOIs	https://doi.org/10.1021/acs.iecr.9b07109
State	Published - 12 Aug 2020

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title = "Computational Fluid Dynamic Study of Biomass Cook Stove-Part 2: Devolatilization and Heterogeneous Combustion",

abstract = "In this study, we have developed a novel model to include the spatial heterogeneity for the combustion of volatiles in the presence of oxygen inside a biomass cookstove (BCS). Three-dimensional computational fluid dynamic simulations of BCS were done to evaluate the dynamics of spatial heterogeneity incurred during biomass combustion. The proposed methodology prescribes the mass release rate of the fuel as a dynamic boundary condition that evolves as per the changing temperature in the void spaces of the packed bed. The temporally evolving mass release rate due to the change in temperatures of the void spaces is calculated iteratively and set as the inlet boundary condition on the particle surfaces using an empirical correlation. The validation studies showed that the time-averaged outlet temperatures predicted from the model are in good agreement with the experimentally obtained values.",

author = "Zakir Husain and Tiwari, {Shashank S.} and Akshansh Kataria and Mathpati, {Channamallikarjun S.} and Pandit, {Aniruddha B.} and Joshi, {Jyeshtharaj B.}",

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doi = "10.1021/acs.iecr.9b07109",

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T2 - Devolatilization and Heterogeneous Combustion

AU - Husain, Zakir

AU - Tiwari, Shashank S.

AU - Kataria, Akshansh

AU - Mathpati, Channamallikarjun S.

AU - Pandit, Aniruddha B.

AU - Joshi, Jyeshtharaj B.

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Y1 - 2020/8/12

N2 - In this study, we have developed a novel model to include the spatial heterogeneity for the combustion of volatiles in the presence of oxygen inside a biomass cookstove (BCS). Three-dimensional computational fluid dynamic simulations of BCS were done to evaluate the dynamics of spatial heterogeneity incurred during biomass combustion. The proposed methodology prescribes the mass release rate of the fuel as a dynamic boundary condition that evolves as per the changing temperature in the void spaces of the packed bed. The temporally evolving mass release rate due to the change in temperatures of the void spaces is calculated iteratively and set as the inlet boundary condition on the particle surfaces using an empirical correlation. The validation studies showed that the time-averaged outlet temperatures predicted from the model are in good agreement with the experimentally obtained values.

AB - In this study, we have developed a novel model to include the spatial heterogeneity for the combustion of volatiles in the presence of oxygen inside a biomass cookstove (BCS). Three-dimensional computational fluid dynamic simulations of BCS were done to evaluate the dynamics of spatial heterogeneity incurred during biomass combustion. The proposed methodology prescribes the mass release rate of the fuel as a dynamic boundary condition that evolves as per the changing temperature in the void spaces of the packed bed. The temporally evolving mass release rate due to the change in temperatures of the void spaces is calculated iteratively and set as the inlet boundary condition on the particle surfaces using an empirical correlation. The validation studies showed that the time-averaged outlet temperatures predicted from the model are in good agreement with the experimentally obtained values.

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JO - Industrial and Engineering Chemistry Research

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ER -

Computational Fluid Dynamic Study of Biomass Cook Stove-Part 2: Devolatilization and Heterogeneous Combustion

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