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Heat and flow dynamics in biomass reactors under pyrolysis conditions: Computational insights

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  • Sandu, Mihai Rares
  • Boldor, Dorin
  • Macavei, Mircea Gabriel
  • Magdziarz, Aneta
  • Marculescu, Cosmin

Abstract

This study investigates the heat transfer and fluid flow phenomena in a tubular reactor designed for biomass pyrolysis, using both experimental and numerical methods. A comprehensive 3D Computational Fluid Dynamics (CFD) model was developed in COMSOL Multiphysics, incorporating the reactor geometry, operating parameters, and biomass properties to simulate thermal behavior. Experiments were conducted with chicken wing bones as feedstock, with temperatures monitored at three points along the reactor to validate the model. The simulations replicated experimental conditions, including nitrogen flow at 0.5 l/min and reactor wall temperature set at 550 °C.

Suggested Citation

  • Sandu, Mihai Rares & Boldor, Dorin & Macavei, Mircea Gabriel & Magdziarz, Aneta & Marculescu, Cosmin, 2025. "Heat and flow dynamics in biomass reactors under pyrolysis conditions: Computational insights," Renewable Energy, Elsevier, vol. 244(C).
    • Handle: RePEc:eee:renene:v:244:y:2025:i:c:s0960148125003532
    DOI: 10.1016/j.renene.2025.122691
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    References listed on IDEAS

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    1. Tao Chen & Xiaoke Ku & Jianzhong Lin & Henrik Ström, 2020. "CFD-DEM Simulation of Biomass Pyrolysis in Fluidized-Bed Reactor with a Multistep Kinetic Scheme," Energies, MDPI, vol. 13(20), pages 1-19, October.
    2. Kaczor, Zuzanna & Buliński, Zbigniew & Werle, Sebastian, 2020. "Modelling approaches to waste biomass pyrolysis: a review," Renewable Energy, Elsevier, vol. 159(C), pages 427-443.
    3. Stanek, Wojciech & Czarnowska, Lucyna & Gazda, Wiesław & Simla, Tomasz, 2018. "Thermo-ecological cost of electricity from renewable energy sources," Renewable Energy, Elsevier, vol. 115(C), pages 87-96.
    4. Anirudh Kulkarni & Garima Mishra & Sridhar Palla & Potnuri Ramesh & Dadi Venkata Surya & Tanmay Basak, 2023. "Advances in Computational Fluid Dynamics Modeling for Biomass Pyrolysis: A Review," Energies, MDPI, vol. 16(23), pages 1-32, November.
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