Minimum spouting velocity of fine particles in fountain confined conical spouted beds

Tellabide, Mikel; Estiati, Idoia; Pablos, Aitor; Altzibar, Haritz; Olazar, Martı́n

doi:10.1016/j.powtec.2020.07.087

Cited by 14 publications

(2 citation statements)

References 58 publications

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“…The opposite trend is observed in the fountain periphery due to the greater gravitational force of the bigger particles. Moreover, as determined in a previous paper [20],…”

Section: Effect Of Particle Propertiesmentioning

confidence: 59%

“…Recently, a novel internal device called fountain confiner was proposed [17], which allows operating with fine and ultrafine particles without any draft tube. Furthermore, it ensures stable operation for D 0 /d p ratios of up to 1000 [18,19,20]. As reported in a previous paper [19], the characteristic curves (∆P vs. u) obtained operating with fine particles and fountain confiner differ considerably from conventional ones.…”

Section: Introductionmentioning

confidence: 66%

See 1 more Smart Citation

Effect of operating conditions on the hydrodynamics in fountain confined conical spouted beds

Tellabide

Estiati

Atxutegi

et al. 2021

Journal of the Taiwan Institute of Chemical Engineers

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“…The opposite trend is observed in the fountain periphery due to the greater gravitational force of the bigger particles. Moreover, as determined in a previous paper [20],…”

Section: Effect Of Particle Propertiesmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 66%

Effect of operating conditions on the hydrodynamics in fountain confined conical spouted beds

Tellabide

Estiati

Atxutegi

et al. 2021

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

View full text Add to dashboard Cite

Minimum spouting velocity of fine particles in fountain confined conical spouted beds using machine learning and least square fitting approaches

Moradkhani,

Miroliaei,

Ghasemi

et al. 2024

Can J Chem Eng

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The present study concerns the development of new models to estimate the minimum spouting velocity (Ums) in various configurations of fountain‐confined conical spouted beds (FC‐CSBs) with fine particles. Existing literature correlations were found to be inaccurate for FC‐CSBs. Therefore, smart modelling techniques were employed to design more accurate predictive tools. The radial basis function (RBF) approach provided the best predictions for systems without draft tubes as well as those with open‐sided draft tubes. Additionally, the Gaussian process regression (GPR) approach yielded the best predictions for systems with nonporous draft tubes. The mean absolute percentage error (MAPE) values for the testing phase were 5.80%, 5.67%, and 5.59%, respectively. These models consider how bed shape and particle properties affect Ums. The sensitivity analysis was conducted to determine the factors with more importance in controlling Ums. Finally, simpler correlations were derived for Ums prediction in different FC‐CSB configurations, with accuracy around 12% error.

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Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV

Bolaños,

Sukunza,

Tellabide

et al. 2025

Chemical Engineering Journal Advances

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Minimum spouting velocity of fine particles in fountain confined conical spouted beds

Cited by 14 publications

References 58 publications

Effect of operating conditions on the hydrodynamics in fountain confined conical spouted beds

Effect of operating conditions on the hydrodynamics in fountain confined conical spouted beds

Minimum spouting velocity of fine particles in fountain confined conical spouted beds using machine learning and least square fitting approaches

Spout diameter in fine particle conical spouted beds: Assessing the influence of draft tubes by PTV

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