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Topic: Water power

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	Water Power
		A water wheel is more akin the antique version we are all familiar with--a massive wooden wheel that slowly turns as the creek pours down over it.
		Water is collected in an intake pipe upstream, travels down to the turbine in plastic pipe, and is forced through one or more nozzles by its own gravity pressure.
		Power is generated by a generator or alternator directly connected to the turbine wheel (no gears or pulleys needed).
	www.otherpower.com /otherpower_hydro.html (872 words)

	water power — FactMonster.com
		The amount of power furnished is proportional to the rate of flow of the water and the vertical distance through which it falls.
		In a pumped-storage plant, water is pumped upward to a high-level reservoir during periods of low electricity demand by using the excess electricity available.
		The availability of water power along a fall line, which is a boundary between an upland region and a coastal plain, influenced the location of many cities in the E United States.
	www.factmonster.com /ce6/sci/A0851611.html (276 words)

	AllRefer.com - water power (Technology: Terms And Concepts) - Encyclopedia
		The wooden water wheel, long utilized for driving machinery in flour mills and factories, was largely supplanted by the steam engine in the early 19th cent.
		In modern practice, water flowing from a higher level to a lower level (as from a dam or waterfall) is used to activate a turbine that drives an electric generator, a process called hydroelectric power generation.
		The availability of water power along a fall line, which is a boundary between an upland region and a coastal plain, influenced the location of many cities in the E United States.
	reference.allrefer.com /encyclopedia/W/waterpow.html (408 words)

	Hydropower - Wikipedia, the free encyclopedia
		The difference in temperature between water near the surface and deeper water can be as much as 20 °C. The warm water is used to make a liquid such as ammonia evaporate, causing it to expand.
		The power of a given situation is a function of the hydraulic head or rate of fluid flow.
		When dealing with water in a reservoir, the head is the height of the water level in the reservoir relative to its height after it has left, since hydrostatic pressure at the base is a function of height only.
	en.wikipedia.org /wiki/Water_power (1683 words)

	Water power
		If water is poured into the top of the pipe at just the right rate, the pipe stays topped up and the jet at the bottom roars away.
		Water flow measurements, types and locations for any dams needed, legal aspects and permissions, the right sort and size of turbine, and a thousand details have to be thought out.
		Hydro-power is the most delectable of all independent power sources: exceptionally reliable and takes hardly any maintenance; normal AC current of the usual frequency can be produced, so that life can go on just as if the mains current were coming in; and as I've said, the installation will outlast the first owner.
	www.viacorp.com /water-power.html (1625 words)

	Micro Hydro Power, Clean Renewable Water Power - An Alternative Energy Source
		In the past, hydro power was a major source of power, mostly in the form of water wheels that drove grain millstones, or generated power for textile mills, sawmills and other industrial applications.
		When water is flowing through the outlet or nozzle of the hydroelectric turbine, the pressure at the outlet is the dynamic pressure or running head.
		Power output of a hydroelectric generator is determined by the pressure of the water at the nozzle and the amount of water flowing out of the nozzle.
	secure3.ihwy.com /sol4power/hydro.html (928 words)

	Power sources - Water (Site not responding. Last check: 2007-10-19)
		Power is needed for industrial activities of all kinds and a number of sources have been exploited in the area in the past.
		Water power has been most often used to drive mills on the local rivers and streams; there was a mill about every mile down the Arrow and Alne at one time.
		Animal power was used to work cider mills, needle-making machinery and farm implem ents such as chaff cutters and turnip choppers and to operate horse engines as a general power source.
	dspace.dial.pipex.com /town/square/fk26/localpast/occpap/indgaz/pwrwater.htm (1612 words)

	Untitled Document (Site not responding. Last check: 2007-10-19)
		As the authorizing subcommittee for the Bureau of Reclamation and the Federal power marketing administrations, the Subcommittee on Water and Power is involved in all aspects of shaping Federal policies for water and power resources management, especially in the rapidly growing West.
		Water users in the West often cling tenaciously to "traditional" water projects while resisting proposals to recycle water supplies or do a better job of water conservation.
		And many water projects are still heavily subsidized with Federal funds, even though the original justifications for water subsidies are no longer applicable or have long been forgotten.
	resourcescommittee.house.gov /democrats/water.htm (265 words)

	The Josef Hasslberger page: Technology
		The power plant of Rheinfelden is a plant that directly utilizes the flow of the Rhein river's water, feeding it through turbines, essentially without the use of a dam.
		Water can be held up by a dam and at the point where we release it through a nozzle or say through a turbine, it will experience a strong acceleration.
		A moving mass of water has an inertial mass which by virtue of the velocity of the water and in fact by the inertialy induced energy, is able to drive a turbine.
	www.hasslberger.com /tecno/tecno_1.htm (2056 words)

	Water & Power (Site not responding. Last check: 2007-10-19)
		Montoya's play, "Water and Power," is a heart-thumping, tough-minded, penetrating and very funny look at today's Los Angeles, power politics and the Latinos who hold the city's future in their hands.
		Water is an idealistic state senator who knows how the game is played but tries to stay true to his ideals.
		Power is a rogue police lieutenant who snorts coke and breaks all the rules.
	www.hollywoodreporter.com /thr/search/article_display.jsp?vnu_content_id=1002951817 (687 words)

	Hydroelectricity
		In N America in the 1850s the energy content of moving water was exploited through the use of small-capacity waterwheels and turbines for the direct drive of machinery, for example, in gristmills and sawmills.
		In 1903 electric power was transmitted to Montréal from a hydro station at Shawinigan, Qué, via a 135 km long, 50,000 volt transmission line; by 1910 ONTARIO HYDRO was transmitting hydroelectric power from Niagara Falls at 110 000 volts.
		The main drawbacks of conventional, large-scale hydroelectric power are the initial high capital cost, the long construction period and the environmental effects of flooding.
	www.thecanadianencyclopedia.com /index.cfm?PgNm=TCE&Params=A1ARTA0003932 (1260 words)

	Exploring Water Power
		The Federal Power Commission has estimated the potential of the nations undeveloped water resources at 470 billion kilowatt hours annually, the equivalent of burning burning 100 million tone of oil costing about $10 billion tons.
		The head is the height water falls from the headwater to the tailwater.
		The water is taken from a high head and accelerated through a pipe to a narrow nozzle.
	www.i4at.org /countrylife/waterpower.html (881 words)

	Encyclopedia: Water power (Site not responding. Last check: 2007-10-19)
		The term refers to a number of systems in which flowing water drives a water turbine or waterwheel.
		Prior to the widespread availability of commercial electricity, hydropower was widely used for milling, textile manufacture, and the operation of sawmills.
		The power of a given situation is a function of the hydraulic head, and rate of flow, and sometimes stream velocity.
	www.nationmaster.com /encyclopedia/Water-power (571 words)

	Conscious Water: Power of Prayer Made Visible
		Water from clear mountain springs and streams has beautifully formed crystalline structures, while the crystals of polluted or stagnant water are deformed and distorted.
		When water samples are bombarded with heavy metal music or labeled with negative words, or when negative thoughts and emotions are focused intentionally upon them, the water does not form crystals at all and displays chaotic, fragmented structures.
		When water is treated with aromatic floral oils, the water crystals tend to mimic the shape of the original flower.
	www.spiritofmaat.com /archive/aug1/consciouswater.html (1027 words)

	Water Power
		Water has been used to power mills for a variety of tasks since colonial times.
		At the Gilbert Stuart Birthplace, an undershot wheel powers the snuff mill and a breastwheel powers the gristmill.
		Power from the waterwheel was transferred to the machines through a series of gears and shafts called the power train.
	www.woonsocket.org /stuartwater.html (495 words)

	Micro-Hydro Water Power - ABS Alaskan Alternative Energy
		Some kind of "runner" or propeller is attached to a shaft* that operates an alternator* to generate power when water turns the runner.
		No matter what source of running water you have on your property, if it supplies a year-round flow* of water, there is most likely a water turbine well-suited to provide electricity for you.
		The controller allows needed power to flow to electrical equipment, prevents overcharging of the battery, and diverts any excess power to to a "diversion* load*" that safely uses the surplus electricity.
	www.absak.com /basic/water-power.html (1641 words)

	A global thirst: water, power and the poor Mike Muller - openDemocracy
		Water practitioners are always glad to get some attention, which usually comes only with flood, drought and cholera, or when a community empties its toilet buckets in the mayor's parlour.
		Perhaps as a result, after thirty years of talking - the first world water decade was agreed upon in 1977 - the number of people in the world without adequate water or sanitation has changed very little.
		Part of the problem is that water is a long-term business with water managers often out of sync with the political cycles and development fashions that drive policy decisions and funding.
	www.opendemocracy.net /globalization-institutions_government/water_4082.jsp (1379 words)

	Ocean Power ala Schauberger
		The water will rise of its own accord as it does in mountain springs, Its levitational vortical movement will initially be induced by a dual-function strainer, whose tangentially arranged inflow provides the impulse for the creation of a vortex while at the same time preventing the entry of aquatic creatures.
		At a certain depth to be determined empirically, atmospheric oxygen delivered through a larger pipe forming an outer jacket, is diffused into the oxygen deficient water by means of a one-way filter consisting of a substance whose physical composition permits the passage of the smaller oxygen molecule by not that of the larger water molecule.
		Ocean Power Delivery's Pelamis system, a series of steel cylinders, began riding the waves off the coast of Scotland in August of 2004 and is sending sufficient electricity to the grid to power 500 households annually.
	www.frank.germano.com /oceanpower.htm (4268 words)

	Goethe-Institut - The Environment - Topics (Site not responding. Last check: 2007-10-19)
		The use of water power has long shed the romantic images of old mills beside rushing streams that are the stuff of German folk songs.
		The BDW uses the example of Baden-Württemberg to calculate the potential of water power: It would be possible to raise the share of electricity generated from hydroelectric sources from 10-12 per cent at present to 20 per cent.
		Although 90 per cent of hydroelectric facilities are small power plants, they only account for eight per cent of hydroelectric power; the fewer, larger facilities produce 90 per cent of all electricity generated from hydroelectric sources.
	www.goethe.de /ges/umw/thm/en137476.htm (745 words)

	Vera Water & Power Home Page
		Vera Water and Power, a publicly-owned utility situated in Eastern
		This was a joint venture with the Spokane County Utilities Department sewer project.
		Vera Water and Power wishes to express their thanks to the State Public Works Board for creating the low interest loan program and making it available to utilities such as Vera for system maintenance and upgrade.
	www.verawaterandpower.com (280 words)

	Highbeam Encyclopedia - Search Results for Water power
		The wooden water wheel, long utilized for driving machinery in flour mills and factories, was largely supplanted by the steam engine in the early 19th cent.
		Water from most natural sources contains about 0.015% deuterium oxide; this can be enriched or purified by distillation, electrolysis, or chemical...
		When, as in the early common law, the term is restricted to waters affected by tides, it denotes only the open sea and tidal rivers.
	www.encyclopedia.com /SearchResults.aspx?Q=Water+power (882 words)

	Howstuffworks "How Hydropower Plants Work"
		Use of hydropower peaked in the mid-20th century, but the idea of using water for power generation goes back thousands of years.
		These ancient water wheels are like the turbines of today, spinning as a stream of water hits the blades.
		In a conventional hydropower plant, the water from the reservoir flows through the plant, exits and is carried down stream.
	www.howstuffworks.com /hydropower-plant1.htm (706 words)

	Water
		Water circulation and oceanographic characteristics of the coastal region are strongly influenced by eight offshore islands.
		Water in the north Pacific Ocean is driven eastward by prevailing westerly winds until it impinges on the western coast of North America, where it divides and flows north and south.
		Water from the retention basin and the yard drains are mixed with the cooling water for discharge.
	www.cpuc.ca.gov /Environment/info/esa/divest-edison/chapters/chap4_4.htm (17842 words)

	Should water, power and gas be privatized? -DAWN - Business; October 16, 2005
		We have abundant water resources with snow-capped mountains in the north and the sea in the south, with rivers and tributaries covering the better part of the country’s plains.
		The utility companies responsible for generation and distribution of water and power are riddled with inefficiencies.
		Powerful global players like the IMF are in the business of lending but like all commercial lenders evaluate credit worthiness before extending their services.
	www.dawn.com /2005/10/16/ebr2.htm (1303 words)

	SailNet Articles (Site not responding. Last check: 2007-10-19)
		Conversely, water generators designed to be mounted at the bottom of an outboard leg are connected directly to the rotor, and they must be completely waterproof since they are under water when in use.
		A great deal of electrical power can be produced from this arrangement, where an electrical generator is mounted inside the boat to the engine shaft via a belt and a set of pulleys.
		Another method of using a freewheeling prop for generating electrical power is to install a complete electric propulsion system such as the Electric Wheel from Solomon Technologies Inc. In their system an electric motor powered by a bank of batteries serves as a silent means of propulsion.
	www.sailnet.com /collections/articles/index.cfm?articleid=jeffre0020 (891 words)

	#129 Holyoke Water Power System (1859) - Landmarks
		Machines, such as the Fourdrinier cylinder machine for paper-making, required large amounts of power and process water, which was supplied by the canal network.
		In 1888 he perfected the McCormick-Holyoke turbine, manufactured by J and W Jolly Inc., which advanced water power significantly, doubling the output with an efficiency rate of 80 percent.
		The Venturi meter used for flow measurement was originally devised to measure the water use of individual mills in the water power system.
	www.asme.org /Communities/History/Landmarks/Holyoke_Water_Power_System.cfm (343 words)

	The Energy Story - Chapter 12: Hydro Power
		For hundreds of years, moving water was used to turn wooden wheels that were attached to grinding wheels to grind (or mill) flour or corn.
		Water can either go over the top of the wheel like in the photograph on the left, or the wheel can be placed in the moving river.
		Water power supplies about 10 percent of the entire electricity that we use.
	www.energyquest.ca.gov /story/chapter12.html (595 words)

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