Numerical investigation of the solid particle erosion rate in a steam turbine nozzle

Campos‐Amezcua, Alfonso; Gallegos-Muñoz, A.; Romero, Christian; Mazur-Czerwiec, Zdzislaw; Campos–Amezcua, Rafael

doi:10.1016/j.applthermaleng.2007.03.010

Cited by 50 publications

(17 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where C(d p ) is particle diameter function, f(a) is impingement angle function, v is the relative velocity among particles, b is velocity exponent, and A f is the cell face area at the wall [37,44].…”

Section: Governing Equations Of Turbulent Micro-and Nano-fluid Erosionmentioning

confidence: 99%

Performance investigation of micro- and nano-sized particle erosion in a 90° elbow using an ANFIS model

et al. 2015

View full text Add to dashboard Cite

Section: Governing Equations Of Turbulent Micro-and Nano-fluid Erosionmentioning

confidence: 99%

Performance investigation of micro- and nano-sized particle erosion in a 90° elbow using an ANFIS model

et al. 2015

View full text Add to dashboard Cite

“…where is the pressure on the fluid micro unit (Pa), is the stress tensor, and are the forces that arise from interaction with the dispersed phase. For turbulence, the numerical study includes the standard -model [18], where the turbulent kinetic energy equation, , is expressed by…”

Section: Governing Equationsmentioning

confidence: 99%

“…where ( ) is a function of particle diameter, is the impact angle of the particle path with the wall face, ( ) is a function of impact angle, ] is the relative particle velocity, (]) is a function of relative particle velocity, and face is the area of the cell face at the wall. In (12) the impact angle function was defined by a piece-linear profile and the diameter function and velocity exponent function are 1.8 − 09 and 2.6, respectively [18].…”

Section: Discrete Phase Model (Dpm)mentioning

confidence: 99%

Numerical Analysis of Erosion Caused by Biomimetic Axial Fan Blade

Zhang

Han

Cao

et al. 2013

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Damage caused by erosion has been reported in several industries for a wide range of situations. In the present work, a new method is presented to improve the erosion resistance of machine components by biomimetic method. A numerical investigation of solid particle erosion in the standard and biomimetic configuration blade of axial fan is presented. The analysis consists in the application of the discrete phase model, for modeling the solid particles flow, and the Eulerian conservation equations to the continuous phase. The numerical study employs computational fluid dynamics (CFD) software, based on a finite volume method. User-defined function was used to define wear equation. Gas/solid flow axial fan was simulated to calculate the erosion rate of the particles on the fan blades and comparatively analyzed the erosive wear of the smooth surface, the groove-shaped, and convex hull-shaped biomimetic surface axial flow fan blade. The results show that the groove-shaped biomimetic blade antierosion ability is better than that of the other two fan blades. Thoroughly analyze of antierosion mechanism of the biomimetic blade from many factors including the flow velocity contours and flow path lines, impact velocity, impact angle, particle trajectories, and the number of collisions.

show abstract

“…Solid particles causing the turbines components wear are entrained products of corrosion and deposits carried by steam from the boiler to the turbine (Campos-Amezcua, 2007;Wellman, 2012;Li, 2009). The major source of solid particles is the tubes surfaces of the main and intermediate boiler steam superheaters, boiler's collectors and steam pipes, where oxide layers (and in particular layers of magnetite) are being naturally formed.…”

Section: Introductionmentioning

confidence: 99%

“…The maximal size of particles is 300 µm and their hardness is HB (Brünell) 700÷750. The solid particles interaction parameters entrained in steam flow vary in a wide range (Azevedo, 2009;Campos-Amezcua, 2007;Wellman, 2012). The main parameters characterizing the solid particles impingement on a surface are: the impingement angle, impingement velocity, solid particles concentration and the contact surfaces temperature (Li, 2009).…”

Section: Introductionmentioning

confidence: 99%

The Investigation of Construction Materials and Protective Coatings Wear Resistance to Solid Particle Erosion

Ryzhenkov¹,

Kachalin²,

Mednikov³

et al. 2014

MAS

View full text Add to dashboard Cite

This article presents a description of a test rig for solid particle erosion resistance of construction materials and protective coatings investigation, as well as equipment for preparing products surfaces and protective coatings formation. The authors discuss a method of velocities and trajectories determination of solid particles that impinge on a metal surface using multiple exposure photo registration. The results of a steel 20Kh13 (X 20 Cr 13) specimen with a 2D nanostructured ion -plasma coating solid particle erosion resistance investigation are reported. It is shown that a protective coating increases resistance of blade steel 20Kh13 (X 20 Cr 13) to solid particle erosion by more than twice.

show abstract

Numerical investigation of the solid particle erosion rate in a steam turbine nozzle

Cited by 50 publications

References 4 publications

Performance investigation of micro- and nano-sized particle erosion in a 90° elbow using an ANFIS model

Performance investigation of micro- and nano-sized particle erosion in a 90° elbow using an ANFIS model

Numerical Analysis of Erosion Caused by Biomimetic Axial Fan Blade

The Investigation of Construction Materials and Protective Coatings Wear Resistance to Solid Particle Erosion

Contact Info

Product

Resources

About