Sand erosion measurements under multiphase annular flow conditions in a horizontal-horizontal elbow

Vieira, Ronald E.; Parsi, Mazdak; Zahedi, Peyman; McLaury, Brenton S.; Shirazi, Siamack A.

doi:10.1016/j.powtec.2017.07.087

Cited by 52 publications

(17 citation statements)

References 7 publications

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“…Xu used this method to simulate the movement of solid particles in the centrifugal pump, and the predicted results are close to the experimental values [19]. Meanwhile, in order to ensure the reliability of erosion rate prediction, Finnie [20], tabakoff [21], have proposed different erosion rate prediction models. These empirical models are basically established on the basis of erosion tests, and the actual variables (impact velocity, impact angle and impact frequency) determine the size of these variables in these empirical models.…”

Section: Introductionmentioning

confidence: 89%

Numerical Simulation Prediction of Erosion Characteristics in a Double-Suction Centrifugal Pump

Song¹,

Gu²,

Shen³

et al. 2021

Preprint

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Double suction centrifugal pump installed along the Yellow River faces the serious sediment erosion due to the high sediment content which cause the poor operation efficiency of pump unit. The particle motion characteristics and erosion characteristics in the pump under different flow rates and different particle concentrations were numerically simulated based on the particle track model of solid-liquid two-phase flow. The results show that the flow rate has a significant effect on the particle tracks and the erosion caused by the particles in the impeller. The total erosion rate is positively correlated with the flow rate, and increases with the increase of flow rate. The vortex and secondary flow in the impeller have obvious influence on the particle trajectory, which increases the particle concentration at the trailing edge of the pressure surface and intensifies the impact erosion in this area. The particles carried by the vortex intensifies the local erosion. The particle concentration mainly affects the erosion rate, but has little effect on the erosion position. The in-fluence of flow rate on the pump erosion is greater than that of the particle properties. These results provide a reference for optimization of the design of anti-erosion blades of the double-suction pump and regulation-operation of pumping station.

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Section: Introductionmentioning

confidence: 89%

Numerical Simulation Prediction of Erosion Characteristics in a Double-Suction Centrifugal Pump

Song¹,

Gu²,

Shen³

et al. 2021

Preprint

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“…In literature, the large number of experimental investigations on erosive wear has been performed on the domain of multiphase flow in the last decades such as studies done by Sedrez et al [ 11 ], Zahedi et al [ 12 ], Vieira et al [ 13 ], Parsi et al [ 14 ], and Owen et al [ 15 ]. However, experimental investigations, with all the recent developments, were not triumphant in precipitating results with acceptable accuracy in multiphase flow ascribed to the involvement of the highly turbulent liquid and solid particle interactions [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Sand Fines Concentration on the Erosion-Corrosion Mechanism of Carbon Steel 90° Elbow Pipe in Slug Flow

Khan

Pao

et al. 2020

Materials

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Erosion-corrosion of elbow configurations has recently been a momentous concern in hydrocarbon processing and transportation industries. The carbon steel 90° elbows are susceptible to the erosion-corrosion during the multiphase flow, peculiarly for erosive slug flows. This paper studies the erosion-corrosion performance of 90° elbows at slug flow conditions for impact with 2, 5, and 10 wt.% sand fines concentrations on AISI 1018 carbon steel exploiting quantitative and qualitative analyses. The worn surface analyses were effectuated by using laser confocal and scanning electron microscopy. The experiment was conducted under air and water slug flow containing sand fines of 50 µm average size circulated in the closed flow loop. The results manifest that with the increase of concentration level, the erosion-corrosion magnitude increases remarkably. Sand fines instigate the development of perforation sites in the form of circular, elongated, and coalescence pits at the elbow downstream and the corrosion attack is much more obvious with the increase of sand fines concentration. Another congruent finding is that cutting and pitting corrosion as the primitive causes of material degradation, the 10 wt.% sand fines concentration in carrier phase increases the erosion-corrosion rate of carbon steel up to 93% relative to the 2 wt.% sand fines concentration in slug flow.

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“…Kesana et al [26] investigated the effect of erodent size and carrier fluid viscosity on wear rate for multiphase flow conditions in 90 • elbow geometry. Vieira et al [27] carried out multiple experimental runs to evaluate 90 • elbow erosion in multiphase flow. They concluded that elbow orientation strongly influences impact conditions and erosion rates.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Erosion-Corrosion Performance of AISI 1018 Carbon Steel and AISI 304L Stainless Steel 90-Degree Elbow Pipe

Khan

Pao

2019

Metals

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Erosion-corrosion is an unavoidable material degradation process in flow pipelines transporting abrasive particles with carrier fluids. In this study, the multiphase flow loop apparatus is employed to assess the erosion-corrosion behavior and mechanism relative to AISI 1018 carbon steel (CS) and AISI 304L stainless steel (SS) 90° long radius elbows with the inner diameter of 50.8 mm. Fine silica sand of 50 µm average size was used as a dispersed phase and erosion-corrosion tests were conducted for slug flow conditions. The erosion-corrosion analysis of 90° elbows was determined from its surface morphologies before and after the experiment using confocal and scanning electron microscopy (SEM). The direct mass loss was measured to quantify the erosion-corrosion rate of the elbow configurations. Additionally, multilayer paint modeling experiments were performed to relate qualitative inferences on erosion distribution and location with the erosion-corrosion mechanism. It was observed that the erosion or corrosion pitting mechanism prevailed on the 1018 CS elbow surface, and the 304L SS displayed excellent erosion-corrosion resistance properties. Moreover, the erosion-corrosion rate was found to be 4.12 times more in the 1018 CS compared to the 304L SS with the maximum particle impaction identified at the exit of the horizontal-horizontal (H-H) 90° elbow for slug flow.

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Sand erosion measurements under multiphase annular flow conditions in a horizontal-horizontal elbow

Cited by 52 publications

References 7 publications

Numerical Simulation Prediction of Erosion Characteristics in a Double-Suction Centrifugal Pump

Numerical Simulation Prediction of Erosion Characteristics in a Double-Suction Centrifugal Pump

Effect of Sand Fines Concentration on the Erosion-Corrosion Mechanism of Carbon Steel 90° Elbow Pipe in Slug Flow

An Experimental Study on the Erosion-Corrosion Performance of AISI 1018 Carbon Steel and AISI 304L Stainless Steel 90-Degree Elbow Pipe

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