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A comprehensive dynamic model for downdraft gasifier using heat and mass transport coupled with reaction kinetics

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  • Patra, Tapas Kumar
  • Nimisha, K.R.
  • Sheth, Pratik N.

Abstract

A dynamic multiphase model combining mass and energy transport with kinetics for the gasification of wood in a downdraft gasifier is developed. The developed model takes into account the mass and energy balance of both solid and gas species. It also includes the reaction kinetics of various phenomena i.e. drying, pyrolysis, combustion and reduction occurring inside the gasifier. The global kinetics of pyrolysis, combustion kinetics of gaseous and solid species, homogenous and heterogeneous reduction kinetics and diffusion controlled moisture evaporation are incorporated in the model. The developed model is simulated to predict various variables such as biomass consumption rate, producer flow rate and its composition throughout the gasifier at various locations at different time. The model is validated with the experimental data reported in our earlier study. The simulation results are found to be well in agreement with the experimental data. The dynamic behavior of downdraft gasifier is studied by analyzing the axial profiles of temperature, concentration and density at different time.

Suggested Citation

  • Patra, Tapas Kumar & Nimisha, K.R. & Sheth, Pratik N., 2016. "A comprehensive dynamic model for downdraft gasifier using heat and mass transport coupled with reaction kinetics," Energy, Elsevier, vol. 116(P1), pages 1230-1242.
    • Handle: RePEc:eee:energy:v:116:y:2016:i:p1:p:1230-1242
    DOI: 10.1016/j.energy.2016.10.036
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    1. Puig-Arnavat, Maria & Bruno, Joan Carles & Coronas, Alberto, 2010. "Review and analysis of biomass gasification models," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2841-2851, December.
    2. Patra, Tapas Kumar & Sheth, Pratik N., 2015. "Biomass gasification models for downdraft gasifier: A state-of-the-art review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 583-593.
    3. Lv, Pengmei & Yuan, Zhenhong & Ma, Longlong & Wu, Chuangzhi & Chen, Yong & Zhu, Jingxu, 2007. "Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier," Renewable Energy, Elsevier, vol. 32(13), pages 2173-2185.
    4. Martínez, Juan Daniel & Mahkamov, Khamid & Andrade, Rubenildo V. & Silva Lora, Electo E., 2012. "Syngas production in downdraft biomass gasifiers and its application using internal combustion engines," Renewable Energy, Elsevier, vol. 38(1), pages 1-9.
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    Cited by:

    1. Smith Lewin, Caroline & Fonseca de Aguiar Martins, Ana Rosa & Pradelle, Florian, 2020. "Modelling, simulation and optimization of a solid residues downdraft gasifier: Application to the co-gasification of municipal solid waste and sugarcane bagasse," Energy, Elsevier, vol. 210(C).
    2. Sharma, Rajeev & Sheth, Pratik N., 2018. "Multi reaction apparent kinetic scheme for the pyrolysis of large size biomass particles using macro-TGA," Energy, Elsevier, vol. 151(C), pages 1007-1017.
    3. Michela Costa & Maurizio La Villetta & Daniele Piazzullo & Domenico Cirillo, 2021. "A Phenomenological Model of a Downdraft Biomass Gasifier Flexible to the Feedstock Composition and the Reactor Design," Energies, MDPI, vol. 14(14), pages 1-29, July.
    4. Wang, Yinglong & Li, Guoxuan & Liu, Zhiqiang & Cui, Peizhe & Zhu, Zhaoyou & Yang, Sheng, 2019. "Techno-economic analysis of biomass-to-hydrogen process in comparison with coal-to-hydrogen process," Energy, Elsevier, vol. 185(C), pages 1063-1075.
    5. Hafiz Muhammad Uzair Ayub & Sang Jin Park & Michael Binns, 2020. "Biomass to Syngas: Modified Non-Stoichiometric Thermodynamic Models for the Downdraft Biomass Gasification," Energies, MDPI, vol. 13(21), pages 1-17, October.
    6. Patra, Tapas Kumar & Mukherjee, Sudeep & Sheth, Pratik N., 2019. "Process simulation of hydrogen rich gas production from producer gas using HTS catalysis," Energy, Elsevier, vol. 173(C), pages 1130-1140.
    7. Zhou, Hua & Xie, Taili & You, Fengqi, 2018. "On-line simulation and optimization of a commercial-scale shell entrained-flow gasifier using a novel dynamic reduced order model," Energy, Elsevier, vol. 149(C), pages 516-534.

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