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Numerical and experimental assessment of a downdraft gasifier for electric power in Amazon using açaí seed (Euterpe oleracea Mart.) as a fuel

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  • Itai, Yuu
  • Santos, Robson
  • Branquinho, Mónica
  • Malico, Isabel
  • Ghesti, Grace F.
  • Brasil, Augusto M.

Abstract

The Amazon region is characterized by communities isolated from the grid that currently are using diesel engines to produce electricity and that have residual biomass energy potentials between 60 and 500 kW. In this scenario, gasification appears as an evident choice as far as energy generation is concerned. Other than wood, açaí seed is the biomass residue most wasted in the Pará State and its use in gasification systems is assessed in this study. With this purpose, a cylindrical bodied downdraft gasifier was designed, built and tested, and an equilibrium model implemented. The comparison of the simulation values with the experimental and numerical results of other authors show that they are in-line with the predictions of other equilibrium models. Also, they confirm that this kind of models is a fast and useful tool for a preliminary assessment of the applicability of a specific biomass gasification process for electricity production. Moreover, the deviation between the numerical and experimental results obtained in this study was lower around the equivalence ratio that optimizes the gasification process (in the 2.15–2.3 range). As far as biomass humidity is concerned, the producer gas calorific value and cold gas efficiency decrease with an increase in this parameter.

Suggested Citation

  • Itai, Yuu & Santos, Robson & Branquinho, Mónica & Malico, Isabel & Ghesti, Grace F. & Brasil, Augusto M., 2014. "Numerical and experimental assessment of a downdraft gasifier for electric power in Amazon using açaí seed (Euterpe oleracea Mart.) as a fuel," Renewable Energy, Elsevier, vol. 66(C), pages 662-669.
    • Handle: RePEc:eee:renene:v:66:y:2014:i:c:p:662-669
    DOI: 10.1016/j.renene.2014.01.007
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    Cited by:

    1. Malico, Isabel & Nepomuceno Pereira, Ricardo & Gonçalves, Ana Cristina & Sousa, Adélia M.O., 2019. "Current status and future perspectives for energy production from solid biomass in the European industry," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 960-977.
    2. Samiran, Nor Afzanizam & Jaafar, Mohammad Nazri Mohd & Ng, Jo-Han & Lam, Su Shiung & Chong, Cheng Tung, 2016. "Progress in biomass gasification technique – With focus on Malaysian palm biomass for syngas production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 1047-1062.
    3. Tejasvi Sharma & Diego M. Yepes Maya & Francisco Regis M. Nascimento & Yunye Shi & Albert Ratner & Electo E. Silva Lora & Lourival Jorge Mendes Neto & Jose Carlos Escobar Palacios & Rubenildo Vieira A, 2018. "An Experimental and Theoretical Study of the Gasification of Miscanthus Briquettes in a Double-Stage Downdraft Gasifier: Syngas, Tar, and Biochar Characterization," Energies, MDPI, vol. 11(11), pages 1-23, November.
    4. Claudio, Caio C. & Perazzini, MaisaT.B. & Perazzini, Hugo, 2022. "Modeling and estimation of moisture transport properties of drying of potential Amazon biomass for renewable energy: Application of the two-compartment approach and diffusive models with constant or m," Renewable Energy, Elsevier, vol. 181(C), pages 304-316.
    5. 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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