Effect of electrostatic charge of particles on hydrodynamics of gas-solid fluidized beds

Manafi, Mahshad; Zarghami, Reza; Mostoufi, Navid

doi:10.1016/j.apt.2019.01.010

Cited by 6 publications

(1 citation statement)

References 37 publications

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“…ere are many methods to measure gas-solid two-phase ow, such as the microwave method [1], electrostatic method [2], electrical tomography [3], optical method [4], and acoustic method [5]. Previous work is encountered in the technique using acoustic signals to measure particle size and other characteristics in dilute phase pneumatic conveying lines.…”

Section: Introductionmentioning

confidence: 99%

Signal Analysis of Characteristics Using Passive Acoustic Emission Technique in Gas‐Solid Pipeline Flows

Weigang

2022

Discrete Dynamics in Nature and Society

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This paper investigates a case study of the use of a passive acoustic sensor for online measurement of the dilute phase gas-solid pipeline flows. The acoustic emission sensor is mounted externally on a stainless steel line conveying silica powders. For different experimental conditions, including the solid to air mass ratios from 0.6 to 1.4 and the gas volume flows from 160 to 240 m3/h, the sound signals in the pipeline are discussed using the wavelet transform technique. The measured values of transmission mechanism of two different lengths, 25 mm and 35 mm, are analyzed. The results show that the variation tendency of standard deviations is consistent and that the noninvasive, online acoustic detect technique can be regarded as a satisfactory tool in gas-solid flows.

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