Effect of granular shape on angle of internal friction of binary granular system

Guo, Zhiguo; Chen, Xueli; Xu, Yang; Liu, Haifeng

doi:10.1016/j.fuel.2015.02.047

Cited by 31 publications

(10 citation statements)

References 29 publications

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“…For example, in the work carried by Coombes and Yan [16] , the size of willow particle distributes from 180-5600 m. In addition, Guo et al [17] proposed an integrated model to describe the quantitative relationship between angle of internal friction and granular shape factors, which agreed well with the experimental data. Yao and Wang [18] carried out a comprehensive study of the effects of granular size and shape on electrostatics in recycled pneumatic conveying systems.…”

Section: Introductionsupporting

confidence: 58%

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Zhao¹,

Zhou²,

Ye³

et al. 2017

Journal of Electrostatics

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In this work, repeated sliding tests for single granules were investigated for their electrostatics generation. Several factors were considered including granule length-ratio, sliding face shape, sliding times, sliding area, sliding velocity, front-facing edge, plate inclined angle and humidity. Generally, it is found that electrostatics increases with granule length-ratio. Two kinds of granular sliding face shapes were used in this work, half circle and rectangle. Under the same working conditions, a granule with the sliding face shape of half-circle tends to produce more electrostatics than that of rectangle. In addition, the efficiency of granule charge generation increases with sliding times although the amount of impact charge is decreased by the initial charge. Electrostatics increases with sliding area, which is independent of granule sliding-face shape and sliding times. Electrostatics also increases with granule sliding velocity. Front-facing sliding with a short edge tends to generate more electrostatics than that with a long edge. In this work, three sliding-plate angles were chosen as 30°,54°,70°, where granules sliding along the inclined plate at 54° acquired the highest electrostatics in comparison with other two angles. Humidity has significant effect on electrostatics as that electrostatics decreases with humidity. At lower relative humidity, the granule length-ratio is found to have more effect on electrostatics.

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Section: Introductionsupporting

confidence: 58%

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Zhao¹,

Zhou²,

Ye³

et al. 2017

Journal of Electrostatics

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show abstract

“…Hoppers, screws, pneumatic transportation in pipelines and feeding systems in thermochemical conversion processes are other examples. Physical properties such as particle size, particle shape and surface roughness affect the flowability of biomass particles [18,[26][27][28][29][30]. Biomass particles are cohesive; they may stick together in a flowing stream of particles and cause a variety of flow issues.…”

Section: Introductionmentioning

confidence: 99%

“…AOR is the angle of piled particles with respect to the horizontal surface, and it indicates the failure properties of particles under gravity [30]. AOR depends on the cohesiveness and stickiness of particles.…”

Section: Introductionmentioning

confidence: 99%

Size, shape and flow characterization of ground wood chip and ground wood pellet particles

et al. 2016

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“…Knowledge of mechanical properties of granular biomass and its blends with coal is necessary for design and efficient operation of equipment for handling, storage and processing [26,7,9,8,10,6,25]. Biomass is widely used as energy source directly or in the form of briquettes or pellets that is a granular material.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of sawdust and woodchips

Stasiak

Molenda

Bańda

et al. 2015

Fuel

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Effect of granular shape on angle of internal friction of binary granular system

Cited by 31 publications

References 29 publications

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Electrostatic charging of single granules by repeated sliding along inclined metal plates

Size, shape and flow characterization of ground wood chip and ground wood pellet particles

Mechanical properties of sawdust and woodchips

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