Erosion prediction of industrial conveying pipelines

Uzi, Avi; Ben-Ami, Y.; Levy, Avi

doi:10.1016/j.powtec.2016.12.087

Cited by 55 publications

(19 citation statements)

References 24 publications

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“…In a previous study , the circumference angle was shown to distribute homogenously in straight sections, and to vary in terms of the bend angle inside bends. This dependency is briefly outlined herein for completeness; further details of this relationship was derived are given in . The logistic function (Eq.…”

Section: Resultsmentioning

confidence: 99%

“…The scale factor was found to depend on the bend angle as given by Eq. :

true σ_{ϕ} = p_{0} + p_{1} θ + p_{2} θ^{2} + p_{3} θ^{3} + p_{4} θ^{4} + p_{5} θ^{5} + p_{6} θ^{6}

…”

Section: Resultsmentioning

confidence: 99%

“…The frequency of impacts between a particle and the pipe wall is the final parameter that should be predicted for completing the machine functions used in the ODBA or ODEM. In previous publications , , the frequency was described as a distributed property with logistic function, although no correlation was found between the operating conditions and frequency. To extend the applicability and generalize the frequency distribution in terms of the conveying characteristics, general trends should be identified.…”

Section: Resultsmentioning

confidence: 99%

“…It should be noted that, although particle attrition and pipe erosion can occur simultaneously, it is assumed herein that one effect is taking place, regardless of the other, because of the high complexity of coupling the two phenomena. Under these assumptions, the ODBA in and , and the ODEM in , were found to predict comparable results with those obtained experimentally.…”

Section: Introductionmentioning

confidence: 97%

“…This combination allows the motion of every particle in the domain to be computed and takes into consideration the particle-fluid interactions. Because every particle is discrete in this method, the collision characteristics during the transport of solids can be captured specifically for each particle [4,5]. The collision characteristics include the impact velocity, angle, frequency, and location, and they serve as an input for single-particle-impact erosion models, such as Oka et al [6] or Ben-Ami et al [7], of collision data and can be summed to obtain the discrete wear depth along the pipe component.…”

Section: Introductionmentioning

confidence: 99%

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Collision Characteristics for Predicting Particle Attrition and Pipe Wear in Conveying Systems

Uzi

Levy

2018

Chem Eng & Technol

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Pipe wear and particle attrition are common and undesired effects when conveying particles in pipelines. An approach for predicting these effects to spare considerable efforts spent in trial and error to achieve the optimum operating conditions is reported. The model is composed of a one‐dimensional flow model that calculates the two‐phase flow dynamics, a one‐dimensional breakage algorithm (ODBA) to compute attrition of the particles, and a one‐dimensional erosion model (ODEM) to compute the erosion rate. The ODBA and ODEM exploit machine functions derived from simulations that define collision characteristics. Several collision characteristics were successfully generated universally; therefore, allowing the attrition and erosion models to stand alone in the examined ranges.

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Section: Resultsmentioning

confidence: 99%

“…The scale factor was found to depend on the bend angle as given by Eq. :