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Study of Mass Loss and Elemental Analysis of Pine Wood Pellets in a Small-Scale Reactor

Author

Listed:
  • Lelis Gonzaga Fraga

    (Faculty of Engineering Science and Technology, Universidade Nacional Timor Lorosa’e, Rua Formosa 10, Díli 314, Timor-Leste
    Metrics I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • João Silva

    (Metrics I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • José Carlos Teixeira

    (Metrics I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Manuel E. C. Ferreira

    (Metrics I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Senhorinha F. Teixeira

    (Algoritmi I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Cândida Vilarinho

    (Metrics I&D Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Maria Margarida Gonçalves

    (Faculty of Science and Technology, University of New Lisbon, 1099-085 Lisbon, Portugal)

Abstract

Studying the thermal decomposition of wood pellets is an important subject in order to understand the behavior of wood pellets during the combustion process. In fact, wood pellets have become an important fuel used in boiler combustion. The objective of this study is to investigate the mass loss and elemental analysis of pine wood pellets at various times and temperatures. Commercial pellets with a diameter of 6 mm were used. The experiment was conducted in the laboratory of the Engineering University of Minho. The pellets were burned in a small reactor of 1.36 kW with a maximum temperature range of 1150 °C. The data were observed at different temperatures: 264, 351, 444, 541, 650, and 734 °C, and at time intervals of 30, 60, 120, 180, 240, 300, 600, 900, 1200, and 3600 s. The results of the experiment revealed that the reaction rate increases with the temperature, and the higher the combustion temperature applied, the higher the mass loss of all substances observed. The remaining mass, as fixed carbon and ash or unburned substances, is about 3%. The residence time and temperature influence the species concentration of wood pellets.

Suggested Citation

  • Lelis Gonzaga Fraga & João Silva & José Carlos Teixeira & Manuel E. C. Ferreira & Senhorinha F. Teixeira & Cândida Vilarinho & Maria Margarida Gonçalves, 2022. "Study of Mass Loss and Elemental Analysis of Pine Wood Pellets in a Small-Scale Reactor," Energies, MDPI, vol. 15(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5253-:d:867014
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    References listed on IDEAS

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    1. Euh, Seung Hee & Kafle, Sagar & Choi, Yun Sung & Oh, Jae-Heun & Kim, Dae Hyun, 2016. "A study on the effect of tar fouled on thermal efficiency of a wood pellet boiler: A performance analysis and simulation using Computation Fluid Dynamics," Energy, Elsevier, vol. 103(C), pages 305-312.
    2. Kraiem, Nesrine & Lajili, Marzouk & Limousy, Lionel & Said, Rachid & Jeguirim, Mejdi, 2016. "Energy recovery from Tunisian agri-food wastes: Evaluation of combustion performance and emissions characteristics of green pellets prepared from tomato residues and grape marc," Energy, Elsevier, vol. 107(C), pages 409-418.
    3. Lelis Gonzaga Fraga & José Carlos F. Teixeira & Manuel Eduardo C. Ferreira, 2019. "The Potential of Renewable Energy in Timor-Leste: An Assessment for Biomass," Energies, MDPI, vol. 12(8), pages 1-12, April.
    4. Rabaçal, M. & Fernandes, U. & Costa, M., 2013. "Combustion and emission characteristics of a domestic boiler fired with pellets of pine, industrial wood wastes and peach stones," Renewable Energy, Elsevier, vol. 51(C), pages 220-226.
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    Cited by:

    1. Lelis Fraga & Eduardo Ferreira & Pedro Ribeiro & Carlos Castro & Jorge Martins & José C. Teixeira, 2023. "Combustion Instability and Ash Agglomeration in Wood Pellets Boiler," Energies, MDPI, vol. 16(18), pages 1-18, September.
    2. Vadim Dorokhov & Geniy Kuznetsov & Galina Nyashina, 2022. "Combustion of Coal and Coal Slime in Steam-Air Environment and in Slurry Form," Energies, MDPI, vol. 15(24), pages 1-23, December.
    3. Muhammet Enes Önür & Kamil Ekinci & Mihriban Civan & Mehmet Emin Bilgili & Sema Yurdakul, 2023. "Quality Properties and Torrefaction Characteristics of Pellets: Rose Oil Distillation Solid Waste and Red Pine Sawdust," Sustainability, MDPI, vol. 15(14), pages 1-16, July.

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