Optimization of the pitch to chord ratio for a cascade turbine blade in wet steam flow

Aghdasi, Mohammad Reza; Teymourtash, Ali Reza; Lakzian, Esmail

doi:10.1016/j.applthermaleng.2022.118445

Applied Thermal Engineering

2022

DOI: 10.1016/j.applthermaleng.2022.118445

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Optimization of the pitch to chord ratio for a cascade turbine blade in wet steam flow

Mohammad Reza Aghdasi

Ali Reza Teymourtash

Esmail Lakzian

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Cited by 17 publications

(1 citation statement)

References 47 publications

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“…Notch hardness measurements in the laboratory have shown that the critical notch size, (ic), for magnetite detachment at the blade surface, is approximately 40 μm. Lawn shows that (ic), is associated with the critical kinetic energy for the impacting particle, as will be seen later (Aghdasi et al,2022).…”

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confidence: 68%

Development of expression for resistance to erosion by solid particles in turbine blades

Perez-Castañeda,

Garcia-Morales,

Camaraza-Medina

2023

CT&F Cienc. Tecnol. Futuro

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The application of reliability centered maintenance onrepairable equipment requires that the reliability calculation should not to be based on failure statistics, as in traditional methods, but rather on its condition. The "load vs resistance" method presumesthe comparison of process parameters with carefully selected mechanical properties of the materials. The author proposes the calculation based on parameters monitored for diagnosis purposes. Specifically, he analyzes the erosion of steam turbine bladessubject tothe action of solid particle from the superheaters, which, under certain conditions, grow to critical thicknesses and due to stresssactionscaused by thermal changes, fracture and detach, acquiring such energy that then impacts the surface of the blades causing theirerosion. These phenomena are analyzed and equations are established in relation withthe mechanical properties of the blade metal , with the energy requird by oxide flakes to cause their erosion. An expression has been obtained, allowing for the application of the method, whichd has not been found in analyzed research works.

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mentioning

confidence: 68%

Development of expression for resistance to erosion by solid particles in turbine blades

Perez-Castañeda,

Garcia-Morales,

Camaraza-Medina

2023

CT&F Cienc. Tecnol. Futuro

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Online estimation approach of the steam specific enthalpy for wet steam turbines in nuclear power plants

Sun

Song²,

Yuan

2023

Applied Thermal Engineering

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Sensitivity analysis of nucleation and droplet growth models in the prediction of natural gas non-equilibrium condensation in Laval nozzle

Sun,

Pen,

Niu

et al. 2024

Applied Thermal Engineering

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Optimization of the pitch to chord ratio for a cascade turbine blade in wet steam flow

Cited by 17 publications

References 47 publications

Development of expression for resistance to erosion by solid particles in turbine blades

Development of expression for resistance to erosion by solid particles in turbine blades

Online estimation approach of the steam specific enthalpy for wet steam turbines in nuclear power plants

Sensitivity analysis of nucleation and droplet growth models in the prediction of natural gas non-equilibrium condensation in Laval nozzle

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