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Title: Evaluation of pressures in slender silos varying hopper angle and silo slenderness
Keywords: Silo pressures
Free-flowing product
Concentric hopper
Flow pattern
Slender silo
Pressões do silo
Produto de fluxo livre
Hopper concêntrico
Padrão de fluxo
Issue Date: Dec-2021
Publisher: Elsevier
Citation: GANDIA, R. M. et al. Evaluation of pressures in slender silos varying hopper angle and silo slenderness. Powder Technology, Lausanne, v. 394, p. 478-495, Dec. 2021. DOI: 10.1016/j.powtec.2021.08.087.
Abstract: In this paper, we report the results for pressures in a full-scale silo obtained from assays performed on a test station using a free-flowing product. Six different types of silo geometry (slenderness and hopper angle) were tested by filling the silo to the height of interest and observing a static phase (10 min) followed by complete discharge. Our results show that discharge flow is not influenced by silo slenderness. The lateral pressure ratio and values obtained for vertical stress in the stored material at the transition were higher than those given in the Eurocode 1, part 4. In addition, the maximum frictional pressures in the cylinder showed peaks that exceeded the standard, as did the maximum normal pressure in the cylinder with maximum slenderness and mass flow (hopper β = 15°).
Appears in Collections:DEA - Artigos publicados em periódicos
DEG - Artigos publicados em periódicos

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