Hydropower Monitoring Articles
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Project - 455 KW, MA
Year: 2016 Running Gear: 3 units: Vertical shaft synchronous generator driven by a Francis turbine. Vertical shaft synchronous generator driven by a propeller turbine, and a vertical shaft induction generator driven through a flat belt by a Kaplan turbine. Scope: Replacement control system, switchgear, excitation, wicket gate operators.. Located in Massachusetts, this hydroelectric plant ...
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Data Centers’ Energy Use Rises - What’s Next for Efficiency?
We’ve often heard that for companies to lessen carbon footprint and become environmentally friendly, they must go online or put their papers and process in the “cloud”. But that’s not really the case, as storing files in the cloud also translates to renting a physical space where those data will be stored and accessed when needed. These places are called data centers. They ...
By AKCP
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Intro to Hydropower - Measuring Head and Flow
Small-scale hydro is the only renewable energy source that works for you 24 hours a day, 7 days a week. In the first article in this series (HP103), I explained the basics of hydroelectric system theory, and reviewed system components. This article focuses on measuring a stream’s head and flow. Before you can begin designing your hydro system or estimating how much electricity it will ...
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An assessment of reservoir filling policies for the Grand Ethiopian Renaissance Dam
Africa's largest hydropower facility is currently under construction on the main stem of the Blue Nile River in Ethiopia. The Grand Ethiopian Renaissance Dam (GERD) is poised to facilitate regional development with a 63 billion cubic meter reservoir and 6,000 MW of power generating capacity. To date, however, no reservoir filling rate policy has been established. This policy will have ...
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Power estimation and reliability evaluation of municipal waste water and self–excited induction generator–based micro hydropower generation system
This paper presents power estimation and reliability evaluation of the micro hydro power generation system based on municipal waste water. Self–excited induction generator was used in the developed power plant, situated at IIT (BHU) campus, Varanasi, India. The hydro potential of the waste water flowing through sewage system of the Banaras Hindu University has been determined for annual flow ...
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The impacts of climate change on a Norwegian high-head hydropower system
Hydropower is the most important renewable energy source for electricity in Norway. However, it is the most vulnerable resource to climate change. Despite the importance of hydropower and its vulnerability to climate change, many studies have been mostly concerned with large-scale resources assessment. This study aims to address the climate change impacts on the scale of a single hydropower ...
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Data Highlight: Hydropower Continues Steady Growth
World hydroelectric power generation has risen steadily by an average 3 percent annually since 1965. In 2011, at 3,500 billion kilowatt-hours, hydroelectricity accounted for roughly 16 percent of global electricity generation, almost all produced by the world’s 45,000-plus large dams. Graph on World Hydroelectric Generation, 1965-2011 Four countries dominate the hydropower landscape: ...
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Evaluation of precipitation forecasts from NOAA global forecast system in hydropower operation
Forecasts of 10-day average inflow into the Ertan hydropower station of the Yalong river basin are needed for seasonal hydropower operation. Medium-range inflow forecasts have usually been obtained by Auto-Regressive-Moving-Average (ARMA) models, which do not utilize any precipitation forecasts. This paper presents a simple GFS-QPFs-based rainfall - runoff model (GRR) using the 10-day accumulated ...
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Control systems for small hydropower plants: a review
Hydropower is emerging as a major contributor to world energy requirement. It is inexhaustible, clean and has many other benefits like flood mitigation, water supply, irrigation, etc. However, large-scale hydropower generation suffers from inherent disadvantages, such as massive financial outlays, long gestation periods, geological surprises, environmental factors and rehabilitation of the ...
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Intro to Hydropower Part:2 Measuring head & flow
Measuring the stream course—Anna and Joe work downstream, shooting vertical drop (head) with a sight level, and getting a rough measurement of the pipe run at the same time. Small-scale hydro is the only renewable energy source that works for you 24 hours a day, 7 days a week. In the first article in this series (HP103), I explained the basics of hydroelectric system theory, and reviewed ...
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