Wirth KE (1983)
Publication Language: English
Publication Type: Journal article
Publication year: 1983
Publisher: VCH Verlagsgesellschaft
Book Volume: 6
Pages Range: 45-52
Critical velocity, derived for horizontal pneumatic conveying, is compared with equations of other authors. The comparison shows that the theoretical dimensionless velocity group, which describes the ratio of momentum of the strand to its resistance, correctly reproduces conditions resulting in plugging of the pipeline. The theoretical equation for critical velocity differs from empirical correlations only by a constant. The characteristic of the employed blower exerts a strong influence on the measured critical velocities. Therefore, experimental installations should be either equipped with blowers with steep characteristics or the air supply should be controlled by Laval nozzles. The comparison between the theoretical equation for critical velocity in horizontal pneumatic conveying and the frequently applied equation of Durand for determination of critical velocity in horizontal hydraulic transport shows that the two differ only by a constant.
APA:
Wirth, K.-E. (1983). Critical Velocity of Solids Transport through Horizontal Circular Pipelines. German Chemical Engineering, 6, 45-52.
MLA:
Wirth, Karl-Ernst. "Critical Velocity of Solids Transport through Horizontal Circular Pipelines." German Chemical Engineering 6 (1983): 45-52.
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