An overview of pneumatic conveying systems and performance

Klinzing, George E.; Marcus, R. D.; Rizk, F.; Leung, L. S.

doi:10.1007/978-94-015-8981-9_1

Cited by 1 publication

(1 citation statement)

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“…One of the problems for measuring pneumatically conveyed solids is that the flow profile varies with conditions of particle size, conveying velocity, air to solids ratio, solids density, routing of pipe and pressure of conveying gas [1,2]. Over past twenty years, various methods have been developed including several tomographic techniques.…”

Section: Introductionmentioning

confidence: 99%

Further Investigation into Spatial Sensitivity of Electrostatic Sensors

Zhang¹,

Cheng²,

Yan³

et al. 2017

dtetr

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Abstract. In gas-solids flow measurement, non-uniform spatial sensitivity of sensors has been a fundamental issue as the even distribution of solids cannot be guaranteed. In this paper, the focus is on the circular electrostatic sensors. By far, the investigation of the spatial sensitivity of electrostatic sensors has been mainly based on the response to a single charged particle at different locations, which forms a basic mathematic model, or the spatial sensitivity of an electrostatic sensor; accordingly the spatial sensing volume can be outline. However, as the above defined "spatial sensitivity" varies with the location of a particle, the spatial sensing volume with regard to a single particle is not a good indicator of the spatial characteristics. In this paper, it is proposed to express the spatial sensitivity as the response of a sensor to a flow stream. Any particle flow can be regarded as a sum of a series of "roping" flow streams either the particles are evenly or un-evenly dispersed. Hence this model can be used to deal with complex flow profiles in applications. The spatial sensitivity of a ring-shaped electrostatic sensor is theoretically analyzed in this paper, which is supported with the experimental results, and also validated through simulations.

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Section: Introductionmentioning

confidence: 99%