Abstract Elbows are important fitting components used to change the flow direction, and they widely in pipeline transport systems. In this work, an experimentally validated Computational Fluid Dynamic (CFD) approach is investigate erosion prediction gas-solid flows 3-inch (76.2 mm) standard elbows (r/D = 1.5). The length between two varies from 2 50 times pipe diameter. First, a mesh independence study was performed minimize uncertainty related size on predictions elbows. Second, different...

Abstract Solid particle erosion is an important subject when it comes to pipelines carrying solid particles in mining and oil gas operations sand production occurs. For that, predict that occurs maintain equipment integrity, the phenomenon has been widely investigated over recent years. multiphase (gas-liquid-sand) flows, affected by superficial liquid velocities, size shape, flow regime. This work aims investigate effect on of two cases with similar mixture velocity but different velocities...

Most previous studies of solid particle erosion in elbows considered an elbow for which the upstream length is long (L/D>100) and flow well developed before reaching elbow. But, this study, experiments were conducted two series, one vertical upward-horizontal orientation second placed after L/D = 6 horizontal-vertical downward orientation. Erosion with liquid-sand liquid-gas-sand conditions experimental facility test section configurations: metallic series measurements acrylic pattern...

Sand particles entrained in oil and gas is a major problem for the petroleum industry. production especially increases with increased liquid production, can impact walls of piping equipment causing solid particle erosion. Predicting erosion under multiphase flow conditions an important task safe operation production. Most previous experimental data modeling work pipe gas-dominated flows single elbow. The current investigates liquid-dominated involving elbows series by utilizing computational...

Abstract Computational Fluid Dynamics (CFD) is used extensively in the industry and academia for analyzing motion of solid particles associated particle erosion that may occur various pipe components. However, CFD simulations always carry levels inherent uncertainties due to numerical approximations governing equations, generated grid, turbulence models. Also, because complex nature erosion, additional are added prediction simulations. Aspects such as size, number impacts, particles’ initial...

Abstract Erosion wear occurs due to repeated impacts of solid particles and even liquid droplets with materials surfaces. The hardness relative the target material is especially important in mining process petroleum industries as many types various shapes sizes hit pipe coatings. particle impact velocities at walls bends are affected by geometry, fluid properties velocity, flow patterns, size distribution flow. shape variation entrained fluids industry applications cause speed angle...

Abstract The application of a state-of-the-art erosion model applied to the problem pneumatic transport hardware at Pulverized Coal (PC) Power stations was previously examined and it demonstrated numerically that is being over-predicted by factor about 100. In this paper, jet-impingement experiments are performed using sand coal for development novel Computational Fluid Dynamics (CFD) used verification validation model. This work result last two years collaboration between RJM Corporation...

Abstract Air-water two-phase flow in circular pipes has been studied by many investigators. However, investigations of multiphase non-circular are still very rare. Triangular have found a number applications, such as conditioning, erosion mitigation elbows, compact heat exchanges, solar collectors, and electronic cooling systems. This work presents survey air-water air-water-sand through triangular pipes. The main objective this investigation is to study the potential effects pipe geometry...

A erosão é o desgaste mecânico na parede dos equipamentos por partículas transportadas escoamento de fluido. Este fenômeno representa um grave problema nas unidades FCC (craqueamento catalítico fluido), especialmente em ciclones, reduzindo a vida útil do equipamento e causando paradas não programadas. Assim, objetivo deste trabalho analisar causada pelo impacto das catalisador uma geometria ciclone otimizada para operar com altas vazões, mediante realização estudos experimentais conjugados...

Abstract The concentration of the sand inside flowlines can directly affect magnitude erosion in various pipelines and pipe fittings components. models available literature suggest that relationship between is linear. Furthermore, some authors believe for a volume approximately below 0.75% by (corresponding to about 2% mass liquid), effects on rate are minimal. However, one could ask how this limitation amount varies geometries as local at location where particles impacting change within...

Abstract During production operations from oil and gas condensate wells, sand particles also travel with the raw petroleum products. These impact walls of transportation infrastructure erode wall thickness. This continuous degradation thickness can result in leakages which has severe implications for safety. be various sizes such as 300, 75, 25 microns. Most studies on this phenomenon solid-particle erosion focus bigger 300-microns. Similarly, management techniques screens gravel packs are...

Abstract Forces acting on both gas and particle phases the interaction between them liquid phase in liquid-gas-solid flow are examined via Computational Fluid Dynamics (CFD) results compared with experimental data. A simplified methodology to simulate multiphase is proposed using Eulerian-Eulerian-Lagrangian approach. The modeling approach for liquid-gas forces rotation erosion data two elbows series. For experiments, a 50.8 mm inner diameter pipe vertical facility water, air, sand particles...