Experimental and Numerical Investigation of Centrifugal Pump Performance When Handling Viscous Fluids

Fard, M. Haghshenas; Ehghaghi, M. B.; Boyaghchi, Fateme Ahmadi

doi:10.1115/imece2005-79154

Cited by 9 publications

(9 citation statements)

References 8 publications

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“…Shojaeefard et al [95,96] conducted both experimental study and numerical simulation of a centrifugal pump handling viscous fluids. The authors stated that a good agreement between simulation and experimental data was obtained by solving the steady state Reynolds-averaged Navier-Stokes (RANS) equations with Shear Stress Transport (SST) k-ω turbulence model.…”

Section: Three-dimension Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Zhu

Zhang

2018

Energies

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As the second most widely used artificial lift method in petroleum production (and first in produced amount), electrical submersible pump (ESP) maintains or increases flow rate by converting kinetic energy to hydraulic pressure of hydrocarbon fluids. To facilitate its optimal working conditions, an ESP has to be operated within a narrow application window. Issues like gas involvement, changing production rate and high oil viscosity, greatly impede ESP boosting pressure. Previous experimental studies showed that the presence of gas would cause ESP hydraulic head degradation. The flow behaviors inside ESPs under gassy conditions, such as pressure surging and gas pockets, further deteriorate ESP pressure boosting ability. Therefore, it is important to know what parameters govern the gas-liquid flow structure inside a rotating ESP and how it can be modeled. This paper presents a comprehensive review on the key factors that affect ESP performance under gassy flow conditions. Furthermore, the empirical and mechanistic models for predicting ESP pressure increment are discussed. The computational fluid dynamics (CFD)-based modeling approach for studying the multiphase flow in a rotating ESP is explained as well. The closure relationships that are critical to both mechanistic and numerical models are reviewed, which are helpful for further development of more accurate models for predicting ESP gas-liquid flow behaviors.

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Section: Three-dimension Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Zhu

Zhang

2018

Energies

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“…An experimental and numerical study was carried out by Shojaeefard et al on the effect of the impeller blade's outlet angle of the centrifugal pump [10,11]. When the blade outlet angle increases, the width of wake at the outlet of impeller decreases.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Centrifugal Pump and Effect of Impeller Geometry on Its Performance

Gobran¹,

Ibrahim²,

Shaltout³

et al. 2019

EAS

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In the presented paper, the effect of impeller geometric parameters on the performance of centrifugal pump has been investigated. This study was performed for different flow rates and rotational speeds, allowing to obtain the performance curve for the centrifugal pump. Three dimensional computational fluid dynamic simulation of the impeller and volute for a centrifugal pump has been performed using ANSYS CFX software (a high-performance computational fluid dynamics software tool that delivers reliable and accurate solutions). The pump has an outside impeller diameter of 205 mm, impeller outlet width of 16 mm, rotational speed 1450 rpm, seven impeller blade and a specific speed of 28. By increasing the impeller outer diameter and outlet width, both net head and power consumed are increased. In addition, it was noticed that the best efficiency point (BEP) was achieved at volume flow rate higher than design flow rate. The performed simulations indicated that; by changing the impeller outer diameter from 200 mm to 210 mm, the flow rate of BEP increases about by 14.7%. By changing the impeller outlet width from 14 mm to 18 mm, the flow rate of BEP increased by about 9%, and the efficiency of BEP reduced by approximately 0.5%. It was also noticed that, increasing the rotational speed will cause an increase in the net head and consumed power. An increase of 13.8% for the flow rate of BEP was observed when changing the rotational speed from 1400 rpm to 1500 rpm, with the same BEP.

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“…Several researchers [14][15][16][17][18] simulated two-dimensional and three-dimensional equations for flow through centrifugal pumps. Precautions should be taken to select a proper turbulence model for turbulent flows over rough surfaces.…”

Section: Introductionmentioning

confidence: 99%

Combined effects of viscosity and surface roughness on electric submersible pump performance

Siddique

Samad

Husain³

2017

Proceedings of the Institution of Mechanical Engineers, Part A:

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An electric submersible pump that lifts crude oil from well bore is a type of multi-stage centrifugal pump. The unexpected wellbore conditions like change in pumping fluid viscosity and sand production severely affect pump performance and eventually lead to breakdown. The present study proposes a numerical approach to understand the effects of fluid viscosity and surface roughness of the flow passages in an electric submersible pump at design and off-design conditions. A three-dimensional numerical analysis was carried out by solving Reynolds-averaged Navier-Stokes equations with shear stress transport turbulence model to characterize performance of the pump. The pumping fluids, i.e., water and crude oils of different viscosities were analyzed for different surface roughness (Ks) values. The model predictions were compared with a theoretical one-dimensional model for the effect of viscosity and surface roughness. It was found that the disc-friction and the skin-friction losses are sensitive hydraulic losses of which the disc-friction loss increases with increase in viscosity, whereas skin-friction loss decreases with increase in surface roughness at high viscosity. The combined effect of viscosity and roughness showed a complicated behavior and eventually an improvement in pump performance at a higher surface roughness compared to a smoother and lowers surface roughness.

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Experimental and Numerical Investigation of Centrifugal Pump Performance When Handling Viscous Fluids

Cited by 9 publications

References 8 publications

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Numerical Simulation of Centrifugal Pump and Effect of Impeller Geometry on Its Performance

Combined effects of viscosity and surface roughness on electric submersible pump performance

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