Influence of the number of flights on the dilute phase ratio in flighted rotating drums by PTV measurements and DEM simulations_中国颗粒学会

在线阅读

Volurnes 54-56 (2021)

Volurnes 48-53 (2020)

Volurnes 42-47 (2019)

Volurnes 36-41 (2018)

Volurnes 30-35 (2017)

Volurnes 24-29 (2016)

Volurnes 18-23 (2015)

Volurnes 12-17 (2014)

Volurne 11 (2013)

Volurne 10 (2012)

Volurne 9 (2011)

Volurne 8 (2010)

Volurne 7 (2009)

Volurne 6 (2008)

Volurne 5 (2007)

Volurne 4 (2006)

Volurne 3 (2005)

Volurne 2 (2004)

Volurne 1 (2003)

在线阅读

Partic. vol. 56 pp. 171-182 (June 2021)
doi: 10.1016/j.partic.2020.09.010

Influence of the number of flights on the dilute phase ratio in flighted rotating drums by PTV measurements and DEM simulations

Lanyue Zhanga,b,*, Zhaochen Jiangb,c, Jochen Mellmanna, Fabian Weiglerd, Fabian Herzd, Andreas Bückc, Evangelos Tsotsasb

Show more

lanyue.zhang@ovgu.de

Highlights

    • The influence of the number of flights on the particle motion in FRD is studied. • The Particle ratio of the dilute phase in FRD is investigated by PTV method. • PTV data are compared with the predictions of previous models and DEM simulations. • DEM simulations show a better performance than the previous literature models.

Abstract

Particle distribution in the cross-section of the flighted rotating drum (FRD) is critical to the analysis of heat and mass transfer between gas and solids. In this work, the particle tracking velocimetry (PTV) method is applied to study the influence of the number of flights on the particle motion in FRDs. The drum, installed with 1, 4, 8, or 12 rectangular flights, is filled with plastic balls to 15% and operated at various rotating speeds ranging from 10 rpm to 30 rpm. The results show that the number of flights has different effects on the holdup ratio and cascading rate of single flight and active flights. With 8 and 12 flights, the FRD produces a larger and more stable particle ratio of the dilute phase. Moreover, DEM simulations agree with PTV measurements, whereas literature models show significant deviations.

Graphical abstract

Keywords

Flighted rotating drum; Number of flights; Dilute phase; PTV; DEM