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This text is a criticism of the policy of energy production in Brazilian Amazonia. It focuses on the dramatically accumulated social and environmental debt incurred by the way Amazonian rivers have been utilized to provide hydropower and to sustain an export-oriented industrial economy. ... Read more

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This digital document is an article from WWP-Business Opportunities in Eastern Europe & the CIS, published by Thomson Gale on October 1, 2005. The length of the article is 423 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

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Title: RUSSIA: Construction plans for proposed $440,000,000 hydropower plant, UNIFIED ENERGY SYSTEMS (UES) [Russia] Order #: 106005.
Publication: WWP-Business Opportunities in Eastern Europe & the CIS (Newsletter)
Date: October 1, 2005
Publisher: Thomson Gale
Volume: 14Issue: 10

Distributed by Thomson Gale ... Read more

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This digital document is an article from WWP-Report on Engineering Construct & Plant Operations in the Developing World, published by Thomson Gale on October 1, 2005. The length of the article is 423 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: RUSSIA: Construction plans for proposed $440,000,000 hydropower plant, UNIFIED ENERGY SYSTEMS (UES) [Russia] Order #: 106005.
Publication: WWP-Report on Engineering Construct & Plant Operations in the Developing World (Newsletter)
Date: October 1, 2005
Publisher: Thomson Gale
Volume: 14Issue: 10

Distributed by Thomson Gale ... Read more

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This digital document is a journal article from Energy Policy, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

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This study presents a model-based approach for analyzing the possible effects of global change on Europe's hydropower potential at a country scale. By comparing current conditions of climate and water use with future scenarios, an overview is provided of today's potential for hydroelectricity generation and its mid- and long-term prospects. The application of the global water model WaterGAP for discharge calculations allows for an integrated assessment, taking both climate and socioeconomic changes into account. This study comprises two key parts: First, the 'gross' hydropower potential is analyzed, in order to outline the general distribution and trends in hydropower capabilities across Europe. Then, the assessment focuses on the 'developed' hydropower potential of existing hydropower plants, in order to allow for a more realistic picture of present and future electricity production. For the second part, a new data set has been developed which geo-references 5991 European hydropower stations and distinguishes them into run-of-river and reservoir stations. The results of this study present strong indications that, following moderate climate and global change scenario assumptions, severe future alterations in discharge regimes have to be expected, leading to unstable regional trends in hydropower potentials with reductions of 25% and more for southern and southeastern European countries. ... Read more

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High Quality Content by WIKIPEDIA articles! One way a vortex ring may be formed is by pushing a spherical mass of fast moving fluid (A) into a mass of stationary fluid (B). A and B may chemically be the same fluid. As B hits the ball of A it pushes the outer layers of A with it. The inner layers are less affected. The main mass of A forms a 'shadow' of lower pressure behind it, and the layer peeled off by B begins to curve round back into the main mass of A. This inward curving flow initiates the vortex, and splits it into a doughnut shape. Now B flows past both the inner and outer circumferences of the doughnut. The greater outer perimeter causes a net rolling the doughnut of A. ... Read more

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High Quality Content by WIKIPEDIA articles! The most common vortex toy works by expelling a quantity of air from the toy in such a way as to create a vortex ring. The energy from this vortex is transferred between air particles, in effect moving the vortex downrange. The core region of the vortex ring always consists of the same fluid, as it travels through the fluid. While outside this core the fluid will be set in motion by the approaching vortex ring, move for some time and return to rest after the passage of the ring. That is the way for instance a smoke ring stays visible after quite long distances of travel; while most of the smoke from outside the vortex ring core is left behind in the region near its' source. ... Read more

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Chapters: Nuclear Reactor Technology, Hydropower, Geothermal Power, Ocean Thermal Energy Conversion, Nuclear Power, Anaerobic Digestion, Fossil Fuel Power Station, Wave Power, Thermal Power Station, Cooling Tower, Enhanced Geothermal System, Geothermal Electricity, Solar Updraft Tower, Cogeneration, Mhd Generator, Micro Combined Heat and Power, Passive Nuclear Safety, Gasification, Lysekil Project, Integrated Gasification Combined Cycle, Kks Power Plant Classification System, Combined Cycle, Air Preheater, Surface Condenser, Small Hydro, Black Start, Distributed Generation, Pelamis Wave Energy Converter, Energy Tower, Capacity Factor, Vortex Engine, Micro Hydro, Load Following Power Plant, Fluidized Bed Combustion, Energy Technology, Deaerator, Wave Farm, Base Load Power Plant, Underground Power Station, Centurion Reactor, Peaking Power Plant, Tom Casten, Coal Pipeline, Pico Hydro, Declared Net Capacity, Sde Sea Waves Power Plant, Boiler Feedwater, Peak Demand, Mercury Vapour Turbine, Sustainable Community Energy System, Combined Heat and Power Plant, Wells Turbine, Ocean Pressure Electric Conversion, Iceland Deep Drilling Project, Wave Motor, Pulverizer, Availability Factor, Traction Powerstation, Energen Wave Power, Wet Bottom Furnace, Sean Casten, Steel Plate Construction, Pulverised Fuel Firing, Standby Generator, Advanced Plant Management System, Standby Gas Treatment, Hybrid Power Source, Symbion Power. Source: Wikipedia. Pages: 438. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Nuclear power is energy produced from controlled (i.e., non-explosive) nuclear reactions. Commercial plants currently use nuclear fission reactions to generate electricity. Electric utility reactors heat water to produce steam, which is then used to generate electricity. In 2009, 15% of the world's electrici...More: http://booksllc.net/?id=22153 ... Read more

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High Quality Content by WIKIPEDIA articles! The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. It has no moving parts.Pressurized gas is injected tangentially into a swirl chamber and accelerates to a high rate of rotation. Due to the conical nozzle at the end of the tube, only the outer shell of the compressed gas is allowed to escape at that end. The remainder of the gas is forced to return in an inner vortex of reduced diameter within the outer vortex. ... Read more

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High Quality Content by WIKIPEDIA articles! Vortex-induced vibrations (VIV) are motions induced on bodies facing an external flow by periodical irregularities on this flow. The classical example is the VIV of an underwater cylinder. You can see how this happens by putting a cylinder into the water (a swimming-pool or even a bucket) and moving through the direction perpendicular to its axis. Since real fluids always present some viscosity, the flow around the cylinder will be slowed down while in contact with its surface, forming the so called boundary layer. ... Read more

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High Quality Content by WIKIPEDIA articles! Eventually, if the frequency of vortex shedding matches the resonance frequency of the structure, the structure will begin to resonate and the structure's movement can become self-sustaining. Tall chimneys constructed of thin-walled steel tube can be sufficiently flexible that, in air flow with a speed in the critical range, vortex shedding can drive the chimney into violent oscillations that can damage or destroy the chimney. ... Read more

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High Quality Content by WIKIPEDIA articles! The core of every vortex can be considered to contain a vortex line, and every particle in the vortex can be considered to be circulating around the vortex line. Vortex lines can start and end at the boundary of the fluid or form closed loops. They cannot start or end in the fluid. (See Helmholtz's theorems.) Vortices readily deflect and attach themselves to a solid surface. For example, a vortex usually forms ahead of the propeller disk or jet engine of a slow-moving airplane. ... Read more

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High Quality Content by WIKIPEDIA articles! Two or more vortices that are approximately parallel and circulating in the same direction will merge to form a single vortex. The circulation of the merged vortex will equal the sum of the circulations of the constituent vortices. For example, a sheet of small vortices flows from the trailing edge of the wing or propeller of an airplane when the wing is developing lift or the propeller is developing thrust. In less than one wing chord downstream of the trailing edge of the wing these small vortices merge to form a single vortex. If viewed from the tail of the airplane, looking forward in the direction of flight, there is one wingtip vortex trailing from the left-hand wing and circulating clockwise, and another wingtip vortex trailing from the right-hand wing and circulating anti-clockwise. ... Read more