A review on sediment erosion in hydro turbines

Document Type : Review Article

Authors

1 New Energies Research and Technology Office, Renewable Energy Organization of Iran (SUNA), Tehran, Iran

2 Rural Electricity & Energy Office (Photovoltaic), Renewable Energy Organization of Iran (SUNA), Tehran, Iran

Abstract

Hydropower plays an important role in electricity generation and due to high cost of developing a hydropower plant, running at maximum efficiency is essential during its lifetime. Sediment erosion which is caused by the dynamic action of silt flowing along with water, impacting against a solid surface is one reasons of declining performance and efficiency of hydro powers over time. Sediment erosion in hydro turbines is a complex phenomenon and there is no precise mathematical model for its description. Generally sediment erosion in hydro turbines depends on properties of particles, properties of base material and operating condition. There are a lot of studies that are aim to identify effective parameters of silt erosion in hydro turbines which most of them are based on experimental data. In this paper a review of studies on erosion theory, sediment erosion models and methods of sediment erosion prevention in hydro turbines has been discussed.

Keywords

References

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Journal of Renewable and New Energy
Volume 2, Issue 1
March 2015
Pages 53-56

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History

  • Receive Date: 06 August 2017
  • Accept Date: 06 August 2017

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