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Jet-spouted bed in conical contactor for winery waste drying

San José, María J. ; Alvarez, Sonia ; López, Raquel

Powder technology, 2024-03, Vol.436, p.119455, Article 119455 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Jet-spouted bed in conical contactor for winery waste drying
  • Autor: San José, María J. ; Alvarez, Sonia ; López, Raquel
  • Assuntos: Conical spouted bed dryer ; Drying jet-spouted-bed performance ; Drying model ; Jet-spouted bed (dilute spouted bed) ; Neural network ; Winery waste
  • É parte de: Powder technology, 2024-03, Vol.436, p.119455, Article 119455
  • Descrição: To analyze the performance of a conical spouted bed dryer for the valorization of wine-production waste (grape skins, seeds, and stalks) in a jet-spouted-bed regime (dilute spouted bed), the operating conditions in the jet and spouted-bed regimes were delimited for comparison. Drying was conducted at different air temperatures and velocities in both regimes, and the time evolution of the gas humidity and solid moisture content was monitored to obtain the most appropriate conditions for drying. An artificial neural network was trained to predict the time evolution of gas humidity in both regimes in a conical spouted bed dryer. From these data, the solid moisture content was determined using differential mass and heat balances, considering equal temperatures in the gas and solid phases. Finally, the fitting of the experimental results of the solid moisture content demonstrates the validity of drying tracking from the time evolution of the air humidity. [Display omitted] •Conical spouted bed dryer is suitable for drying of winery waste.•The operability of beds of winery waste was determined in the jet-spouted bed.•Jet-spouted bed regime is highly efficient for drying of winery waste.•Time evolution of gas humidity was predicted by an artificial neural network.•Evolution of solid moisture content was obtained from gas humidity by mass balance.
  • Editor: Elsevier B.V
  • Idioma: Inglês

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