Correlation Development for Erosive Wear Rate on Pelton Turbine Buckets

Thakur, Robin

doi:10.24247/ijmperdjun201727

Cited by 9 publications

(5 citation statements)

References 22 publications

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“…Due to its higher molybdenum content, it is suitable for marine environments as it improves the ability to resist pitting corrosion in environments with chloride-like seawater. Numerous investigators are studying the ideal material for turbines to resist erosion and wear [ 119 , 120 ]. Usually, stainless steel has been the material of choice for hydropower turbines.…”

Section: Methodsmentioning

confidence: 99%

Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies

Kashyap,

Thakur,

Ngo

et al. 2024

Heliyon

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Section: Methodsmentioning

confidence: 99%

Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies

Kashyap,

Thakur,

Ngo

et al. 2024

Heliyon

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“…Later, based on this test, these scholars further studied the relationship between efficiency loss and erosion parameters and obtained a correlation expression and error range of ±10% [6]. Thakur et al [71] also studied the factors influencing bucket erosion using similar devices and research methods. The device is shown in Figure 9, and the error between the erosion model and experimental data was within ± 12.8%.…”

Section: Pelton Turbine Test Rigmentioning

confidence: 99%

“…Dynamic mesh technology was used in the simulation process, making the numerical simulation closer to engineering practice. Thakur et al [71] analyzed the deformation of a runner using the finite element method. They observed that the deformation of the splitter and cutout was the largest, which was consistent with the field experiment (Figure 17).…”

Section: Numerical Simulations Of Sediment Erosionmentioning

confidence: 99%

Sediment Erosion on Pelton Turbines: A Review

Ge,

Sun,

Chu

et al. 2023

Chin. J. Mech. Eng.

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The Pelton turbine has been widely used to develop high-head water resources with sediments because of its advantages in life cycle costs. When a flood or monsoon season occurs, the sediment concentration in the river increases suddenly, causing severe erosion to the nozzle, needle, and runner of Pelton turbines. After decades of development, researchers have developed practical engineering experience to reduce the sediment concentration of the flow through the turbine and ensure the safety and efficiency of power generation. Research on the mechanism of sediment erosion, development of anti-erosion materials, and establishment of erosion prediction models have attracted scholarly interest in recent years. Extensive research has been conducted to determine a complete and valuable syndication erosion model. However, owing to the complexity of the flow and wear mechanisms, the influence of specific parameters of erosion and the syndication effect is still difficult to determine. Computational fluid dynamics and erosion monitoring technology have also been evaluated and applied. This paper presents a comprehensive review of the erosion of Pelton turbines, some of the latest technical methods, and possible future development directions.

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“…Erosive wear followed a power law ( W n V ) w.r.t stream velocity. Maximum erosion was observed at the splitter and notch of the bucket [26]. Kumar and Varshney (2015) analyzed the estimation of silt erosion in the hydro turbine.…”

Section: Numerical and Experimentalmentioning

confidence: 99%

A Comprehensive Review on Investigation of Sediment Erosion of Pelton Wheel Turbine

Ullah¹,

Khan²,

Talha³

et al. 2022

PakJET

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Hydro turbines installed at different hydropower plants face the issue of sediment erosion. Sediment erosion is an ambiguous phenomenon influenced by several parameters, including silt concentration, size, jet velocity, diameter, and fluid viscosity. Silt erosion imposes severe issues for hydropower plants, like shutdown and maintenance costs. The hydro turbine efficiency decreases with the increase in sediment erosion and eventually the breakdown of turbine components. Various researchers conducted small-scale experimental bench studies and numerical simulations to analyze the influence of the above-mentioned parameters on silt erosion, but the actual flow conditions are too complex to simulate. Therefore, no such erosion model has been developed to predict exact erosive wear. This paper presents an extensive review of the literature survey on sediment erosive wear of hydro turbines, both the adopted methodology by previous studies and parameters affecting sediment erosion in Pelton turbine are summarized. Based on literature studies, various aspects of erosive wear, parameters influencing it, and its severe effects on efficiency are thoroughly discussed. Appropriate remedial measurements for erosive wear made by multiple researchers, erosion models developed so far, and their measuring accuracy and the future scope of this research study are articulated in detail.

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Correlation Development for Erosive Wear Rate on Pelton Turbine Buckets

Cited by 9 publications

References 22 publications

Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies

Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies

Sediment Erosion on Pelton Turbines: A Review

A Comprehensive Review on Investigation of Sediment Erosion of Pelton Wheel Turbine

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