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Uniquely designed three biomass-based integrated sustainable energy systems for comparative evaluation

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  • Ayoub, Mohamad
  • Dincer, Ibrahim

Abstract

In this work, three different configurations of an integrated thermal system for hydrogen production utilizing gasification, alkaline electrolysis, and photo-alkaline electrolysis are conceptually developed and thermodynamically analyzed and assessed. Different gasification feedstock options considered include white oak wood, Douglas-fir wood, madrone wood, and pine needles. The Aspen Plus software package is used to conduct corresponding simulations and facilitate the system analysis and performance related calculations. For photo-alkaline electrolysis calculations, the AM1.5G spectrum and the bandgap of copper oxide are also considered. Subsequently, a direct approach is presented for the calculation of the fraction of the solar spectrum and incident irradiance absorbed. The highest hydrogen production is attributed to pine needles at 285 kg/h for a 4500 kg/h biomass feed due to its favorable composition, at efficiencies of 38.07 %, 38.53 %, and a peak of 38.55 % at 17:00 in a diurnal cycle, for gasification, gasification-alkaline electrolysis, and gasification-photo-alkaline-electrolysis system configurations, respectively.

Suggested Citation

  • Ayoub, Mohamad & Dincer, Ibrahim, 2026. "Uniquely designed three biomass-based integrated sustainable energy systems for comparative evaluation," Energy, Elsevier, vol. 342(C).
    • Handle: RePEc:eee:energy:v:342:y:2026:i:c:s0360544225052041
    DOI: 10.1016/j.energy.2025.139562
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