1990
DOI: 10.1007/978-94-009-0405-7
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Pneumatic Conveying of Solids

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Cited by 90 publications
(30 citation statements)
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“…However, for the air velocities and turbulent flow commonly encountered in pneumatic conveying, drag coefficient attains an average value of approximately 0.44 (Marcus et al, 1990;Raheman & Jindal, 2002). It is noteworthy that laminar flow may be expected only for Reynolds numbers (R e ) less than 2,300 (Stein, 2004;Fox et al, 2012).…”
Section: Design Fundamentalsmentioning
confidence: 99%
See 1 more Smart Citation
“…However, for the air velocities and turbulent flow commonly encountered in pneumatic conveying, drag coefficient attains an average value of approximately 0.44 (Marcus et al, 1990;Raheman & Jindal, 2002). It is noteworthy that laminar flow may be expected only for Reynolds numbers (R e ) less than 2,300 (Stein, 2004;Fox et al, 2012).…”
Section: Design Fundamentalsmentioning
confidence: 99%
“…Vertical wind tunnels and theoretical calculations were used to determine the terminal velocity of chickpea seeds (Mohsenin, 1986;Gorial & O'callaghan, 1990;Rabani et al, 2002;Tabatabaeefar et al, 2003;Kilikan & Güner, 2010;Gürsoy & Güzel, 2010;Razavi et al, 2010). However, for R e higher than 50, the drag coefficient curves level off, and therefore, the assumption of sphericity results in considerable error (Mohsenin, 1986;Gorial & O'callaghan, 1990;Marcus et al, 1990). As the R e for chickpea grains is 6,800 (Gorial & O'callaghan, 1990), the sphericity-based theoretical calculation of terminal velocity is not valid.…”
Section: Terminal Velocitymentioning
confidence: 99%
“…Marcus et al (1990) destacaram que a alternativa preferencial para esse papel é o transporte pneumático de sólidos, em que partículas são transportadas por uma corrente de gás, comumente ar.…”
Section: Troduçãounclassified
“…For example, in some cases involving the transport of finer particles (20 m -75 m) at mass loadings (the ratio of solids mass-flow rate to gas mass-flow rate) less than 4, the pressure drop actually decreases with increasing solids concentration. This result is due to a reduction in the gas-phase stress with the addition of particles (Marcus et al, 1990). …”
Section: Turbulent Gas-particle Interactionsmentioning
confidence: 99%