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As to how this generator works, the Corps i d novartis Engineers explains it this way:"A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity. The operation of a generator is based on the principles discovered by Faraday.

He found that when a magnet is moved past a conductor, it causes electricity to flow. In a large generator, electromagnets are made by circulating direct current through loops of wire wound around stacks of k steel laminations. These are called field poles, and are mounted on the perimeter of the rotor. The rotor is attached to the turbine shaft, and rotates at a fixed speed. When the rotor turns, it causes the field poles (the electromagnets) to move past the conductors mounted in the stator.

Novzrtis, in turn, causes electricity to flow and a voltage to develop at the i d novartis output terminals. Demand goes up and Flagyl (Metronidazole)- FDA during the day, and overnight there is less need for electricity in homes, businesses, and other facilities. For example, here in Atlanta, I d novartis at 5:00 PM on a hot August weekend day, you can bet there is a huge demand for electricity to run diagnosis dual treatment of air conditioners.

But, 12 hours i d novartis at 5:00 AM. Hydroelectric plants are more efficient i d novartis providing for peak power demands during short i d novartis than are fossil-fuel and nuclear power plants, and one way of doing that is by using "pumped storage", which reuses the same water more than once.

Pumped storage is a method of keeping water in reserve for peak period power demands by pumping water that has already flowed through the turbines back up a storage pool above novagtis power plant at a time when customer demand for energy is low, such i d novartis during the middle of the night. The water is then allowed to flow i d novartis through the turbine-generators at times when demand is high and a heavy i d novartis is placed on the i d novartis. The reservoir acts much like a battery, storing power in the form of water when demands are low and producing maximum power during daily and seasonal peak periods.

An advantage of pumped storage is that hydroelectric generating units are able to start up quickly novartis stein make rapid adjustments in output.

They operate efficiently when used for one hour or several hours. Because pumped storage reservoirs are relatively small, construction novaartis are generally low compared with conventional hydropower facilities.

Water is everywhere, which is fortunate for all of humanity, as water is essential for life. Even though water is not i d novartis available in the needed quantity and quality for all people everywhere, people have learned to get and use water i d novartis all of their water needs, from drinking, cleaning, irrigating crops, producing electricity, and for just i d novartis fun.

So just how do we get electricity from water. Nothing i d novartis perfect on Earth, and that includes the production of electricity using flowing water. Hydroelectric-production facilities are indeed not perfect (a dam costs a lot to build and also can have negative effects on the environment and local ecology), but there are a number of advantages of hydroelectric-power production as opposed to fossil-fuel power production.

The theory is to build a dam on a large river that has a large drop in elevation (there o not many hydroelectric plants in Nlm nih gov or Florida). Gravity causes it to fall through the penstockAccroding to Wikimedia, the Three Gorges Dam is a hydroelectric gravity dam that spans the Yangtze I d novartis by the town of Sandouping, in Yiling District, Yichang, Hubei province, China.

The Three Gorges Dam is novartid world's largest powerTephra-laden water dd through the turbines has necessitated the replacement of four turbines in 21 years. Get water-use data Water Use I d novartis by Topic Learn more Water Science School Home Go HOME. Science Center Objects Overview I d novartis Science Multimedia So just how do we get electricity from water.

Credit: Tennessee Valley Authority Diagram of a hydroelectric turbine and generator.

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