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How electrical engine power load and feedstock moisture content affect the performance of a fixed bed gasification genset

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  • Huchon, Valentin
  • Pinta, François
  • Commandré, Jean-Michel
  • Van De Steene, Laurent

Abstract

Performance of wood gasification genset is sensitive to the moisture content in the feedstock and the electrical load (demand of users). This study investigates the influence of these process parameters on the electrical efficiency of the genset (ηglobal), the electrical engine efficiency (ηengine), the cold gas efficiency (CGE), and the syngas composition. Experimental tests were carried out by varying the moisture content from 11% to 23% and the electrical power from 4.7 kW to 12.8 kW on a commercial gasifier equipped with precise measuring tools. The increase of the performance when the electrical load is increased or when the moisture content in the wood chips is decreased is both quantified and discussed. Such behaviour was mainly explained by differences in engine filling rates and reactor temperatures.

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  • Huchon, Valentin & Pinta, François & Commandré, Jean-Michel & Van De Steene, Laurent, 2020. "How electrical engine power load and feedstock moisture content affect the performance of a fixed bed gasification genset," Energy, Elsevier, vol. 197(C).
    • Handle: RePEc:eee:energy:v:197:y:2020:i:c:s0360544220302516
    DOI: 10.1016/j.energy.2020.117144
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    References listed on IDEAS

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    1. Chaves, Luiz Inácio & da Silva, Marcelo José & de Souza, Samuel Nelson Melegari & Secco, Deonir & Rosa, Helton Aparecido & Nogueira, Carlos Eduardo Camargo & Frigo, Elisandro Pires, 2016. "Small-scale power generation analysis: Downdraft gasifier coupled to engine generator set," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 491-498.
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    4. Elsner, Witold & Wysocki, Marian & Niegodajew, Paweł & Borecki, Roman, 2017. "Experimental and economic study of small-scale CHP installation equipped with downdraft gasifier and internal combustion engine," Applied Energy, Elsevier, vol. 202(C), pages 213-227.
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    1. Zachl, A. & Buchmayr, M. & Gruber, J. & Anca-Couce, A. & Scharler, R. & Hochenauer, C., 2022. "Evaluation and extension of the load and fuel flexibility limits of a stratified downdraft gasifier," Energy, Elsevier, vol. 239(PD).
    2. Zachl, Angelika & Buchmayr, Markus & Gruber, Johann & Anca-Couce, Andrés & Scharler, Robert & Hochenauer, Christoph, 2024. "Experimental-data-based, easy-to-use product gas composition prediction of a commercial open-top gasifier based on commercially used properties of softwood chips," Renewable Energy, Elsevier, vol. 226(C).
    3. Huchon, V. & Martin, E. & Pinta, F. & Commandré, J.M. & Van de steene, L., 2024. "Conversion in a char bed reactor of tars and syngas from a wood gasifier," Energy, Elsevier, vol. 288(C).

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