hydraulic power turbine Articles

  • Usages of free-flow hydraulic turbines and boosting their energy efficiency

    The article analyses engineering solutions of free-flow hydraulic turbines and ways of making them more energy efficient through application of the hydrodynamic effect of boosting the flow power. Keywords: energy; energy efficiency; capacity; power; turbine; free-flow; flow; water wheel; depth; hydrodynamic; effect; feedback; hydraulic jump MAIN PART ...


    By IWA Publishing

  • Case Study - 6MW Non-Condensing Power Plant

    Lihir Island, Papua New Guinea – 2003 First Geothermal Power Station in PNG: Press Release, April 16, 2003 Lihir Gold Limited “Gold company Lihir Gold Limited is turning its vast geothermal resource into an opportunity. In April, the company started commissioning a 6MW geothermal power station, the first in Papua New Guinea to use natural geothermal ...

  • A novel technique proposed for automatic control of small hydro power plants

    A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper, necessity for speed control, various function of governors, types, speed regulation of micro-hydroelectric power plants, functional block diagram of power generation and control system general models for ...


    By Inderscience Publishers

  • Research into the hydrodynamic effect of boosting power and its full-scale modelling

    This article analyses the possibility of full-scale modelling of the hydrodynamic effect that appears in free hydraulic flow as a result of its acceleration and transition through a critical state. Keywords: criteria of hydrodynamic similarity, Froude number, Reynolds number, ejection effect, hydrodynamics, turbulent, critical, sub critical, super critical, hydraulic jump, dept, ...


    By IWA Publishing

  • GE Leakwise Application Notes: Oil Detection in Hydro-Electric Power Plants

    Leakwise* Oil Detection in Water Collection Sump Under Turbines Water carries oil leakage from turbine bearings and other leaking sources into a large sump, which is built under the turbines. In most plants, pumps installed at the bottom of the sump discharge the water directly to the river.  A Leakwise lD-221 Floating Oil Detector is installed in a perforated 6” stilling well. The ...


    By GE Analytical Instruments

  • Modelling of the hydro-generator local network operation and load disturbance rejection

    The paper describes models of the local network operation of the hydraulic turbine-generator unit. Two different models are proposed. They describe the dynamic behaviour of a system in which the unit is connected to an equivalent system. A nonlinear model of the interconnection to an equivalent power system is considered. An optimal controller for load disturbance rejection in water turbine speed ...


    By Inderscience Publishers

  • A Review of Cavitation-Erosion Resistant Weld Surfacing Alloys for Hydroturbines

    AbstractAn improved weld surfacing alloy has been developed and tested to resist cavitation-erosion in hydroturbines. Typical wear characteristics experienced in laboratory testing has been correlated to actual service conditions. A metallurgical evaluation shows that a high strain, work hardening austenitic stainless steel produces superior resistance to cavitational erosion. Several industrial ...


    By Castolin Eutectic

  • Monitoring Hydroelectric Dam Sumps - Case study

    The Situation Hydroelectric dams produce electric power by harnessing the force of the water flowing through the dam. There are numerous sources for oil spillage: The hydroelectric turbines are lubricated by lubrication oils. The very large water control valves are normally hydraulic powered and are lubricated with various greases and oils. Vehicles ...

  • How big is the distributed energy opportunity for water and wastewater utilities?

    Energy costs for water utilities are large, and growing Energy is a significant cost for many water utilities, and costs are growing as more energy-intensive forms of water supply, including desalination, are being used. Energy is typically the second-largest utility budget item in developed countries, after labour. In many developing countries, energy can account for 70% or even more, of ...

  • No Place Is Too Far

    The remote location of hydropower stations is often a great challenge when major repair work is necessary. The refurbishment of a large generator in the Scottish Highlands shows how Sulzer finds cost-effective service solutions even in places miles from nowhere. Much of the UK hydroelectric capacity was built during the 1950s. These installations have performed extremely well, especially ...


    By Sulzer Management Ltd

  • Why clean transformer oil?

    Related Website: http://www.oilrenew.com http://www.leizeyan.com http://www.zhongnengcq.cn ...


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