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Hydroelectric power for essay
Hydroelectric power for essay
Hydroelectric power for essay
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Hydroelectric Power Earth Science By Austin Edwards Hydroelectric power was one of the first power sources of power used. It is used by the powerful flow of water currents. The first dam ever created for the use of hydroelectric power was built on September 30th, 1882, in Appleton Wisconsin. After that dam, over 2,044 billion-kilowatt hours are being produced each and everyday in all parts of the world. Starting out not being very popular, its production has steadily increased over the years. The reason for its increasing numbers is because of its dependability. Why is it so dependable? There is always water flowing constantly everywhere in the world. Dams are built in the areas where water is moving at a rapid pace, such as rivers and streams. It is so dependable because no matter what happens in the weather or anywhere on earth, unless the river or stream dries up the water will always be at a constant flow. Some days the flow can be quicker than others producing more energy, although it wouldn’t produce as much a slow steady pace is still going to produce a decent amount of energy throughout the day. How do these dams work? There are many steps involved in the process of making this energy, although the first step of the production is the water must enter a series of massive pipes, and the collide with the turbine paddles which results in the paddles spinning. As these paddles spin a long stick is on the outside, which is connected to a generator, filled with magnets where all of the electrons are produced, After all these steps all of the produced electrons are pushed through power lines to power houses, businesses, and schools around the area. After all these steps are complete the water used to push these turbines are now ... ... middle of paper ... ... evacuate are around 80,000 people. So just one dam can cause thousands of people to loose homes and property. Finding a place to fit a giant dam is also a difficult process even being able to remove peoples homes the dam has to be placed in the right spot to have the most production. Also the more things in the way means more things to remove from the area, resulting in more labor, more equipment, and more labor men, all costing thousands of dollars to add to the budget. All in all hydroelectric power is a very useful and powerful tool that the world has. With all this data and debate there are more pros than cons and with the pollution problem, this solution is a must. It is safe to say the world should use as much hydroelectric power as possible to keep the earth clean and healthy while also being able to produce electricity needed by humans in every day life.
The article “Hydropower as a Renewable Energy Source” (n.d.) shows that man-made dams make up seventy-five percent of the United States’ total renewable energy.
The dam itself spanned a gap of 918 feet across the valley and was 72 feet high. The primary materials used for the dam were rock and other earth. The dam started as 10 feet thick at the top of the structure and expanded to 220 feet at the base (NPS). As you can see in the image below of the dam there is a culvert that runs under the dam that was used to discharge water in the South Fork Creek that was then sent to a local canal. The flow of water was controlled by five 2ft diameter cast iron valves that were located in the tower to the left of the structure. In the event of an emergency were the culvert couldn't handle a large quantity of water an 85 ft wide spill-way was cut through the solid rock of the hillside near the eastern end of the dam (Jackson, Donald Dale).
If the dam is so beneficial then why is it that all public debate on the issue has been banned since 1989, even for "…scientists and specialists"(Faison, 1997). This has probably been done to slow the process of or eliminate any opposition that may arise to this project. There are a few questions or "What if’s" about the dam, such as "What if the dam collapses?" or "What if during a war or conflict a bomb is dropped on the dam?" and since the dam is built on many seismic faults, will earthquakes be a problem? Besides all of these questions, there are numerous facts that should dissuade any proponent of the dam to insist on its construction. The dam besides hurting the environment, will also "…displace 1.3 million people."(Giaccia, 1997). These people were not asked to leave, they were told, and many of them still have not been compensated for their trouble, but this goes deeper than financial burdens. Individual rights have been violated, the government simply forced these people off their land and out of their homes and this affects children, families and livelihoods.
The use of turbines from dams to provide power was a brilliant idea until water levels started running lower than normal. The water waste from humanity is directly contributing to portions of it, aside from drought conditions affected by pollution, widespread fires battled, and more adds to the depletion thereof. When humanity is relying on power provided from dams to handle the demand, they are essentially relying on the assumption that water levels will always be there to provide it. The Hoover Dam provides power to the southwestern portion of the USA that has a large number of people.
The main parties who is associated with the debate are governments, experts, and the country people. These people have given out their opinions regarding the effects of nuclear ene...
What Nuclear power has the ability to do is get a lot of power in a little amount of space. “Roughly 1.6 billion people live without access to electricity, and 2.4 billion rely on traditional biomass because they have no access to modern fuel.” (General Dr. Mohamed ElBaradei) With nuclear power put into these countries that are without power we can have it to where electricity will be accessibility to everyone. By having power accessible to everyone we can accomplish so much more and unlock more possibilities in our world today.
Next, hydro-electricity is electricity produced by moving water, flowing past a turbine connected to a generator (“Hydropower”). According to Nationalgeographic.c...
The first type of renewable energy is hydroelectric energy or well known as hydropower. In greek word, hydro means water and thus hydroelectric energy refers to electricity generated using flowing water at high velocity. Lutgens and Tarbuck (1992, p. 163) stated that “running water is of great importance to people as we depend upon rivers for energy, travel and irrigation”. Continuous availability of water in universe made water to be the main source of hydroelectric energy. Water has been widely utilized by mankind since the beginning of civilization and wate...
A steam turbine's two main parts are the cylinder and the rotor. As the steam passes through the fixed blades or nozzles it expands and its velocity increases. The high-velocity jet of steam strikes the first set of moving blades. The kinetic energy of the steam changes into mechanical energy, causing the shaft to rotate. The steam then enters the next set of fixed blades and strikes the next row of moving blades. As the steam flows through the turbine, its pressure and temperature decreases, while its volume increases. The decrease in pressure and temperature occurs as the steam transmits energy to the shaft and performs work. After passing through the last turbine stage, the steam exhausts into the condenser or process steam system. The kinetic energy of the steam changes into mechanical erringly through the impact (impulse) or reaction of the steam against the blades.
Wind turbines are a great source of energy around the world. Wind turbines produce wind energy that can be used to power our homes. Wind turbines convert kinetic energy into mechanical power. Then this mechanical power gets generated into electricity. Wind turbines make energy by the wind turning the large blades, which spin a shaft that is connected to the large blades, which then operates the generator making electricity.
Hydropower, the use of water to power machinery or produce electricity, provides the most renewable energy in the United States, and uses alternating current in most modern plants ("Hydropower…”). Hydropower relies on the water cycle and is a clean fuel source; it doesn’t pollute the environment like plants that burn fossil fuels. It is by far the most efficient way to generate electricity, being half the cost of using nuclear power, two-fifths the cost of using fossil fuels, and a quarter the cost of using natural gas ("Wind and Water…”). Also, hydropower is not subject to market fluctuations of embargos, and the average lifespan of a facility is 100 years. Hydropower also has many non-energy benefits such as water supply, flood control, navigation, irrigation, and recreation. However, it does face many environmental challenges such as impacts to aquatic habitats, aesthetic alterations of landscapes, changes to water quality, and interruptions of marine life ("Hydropower…”).
The water is then used when there is a lack of supply. For example many small dams impound water in the spring, for use in the summer dry months. Storage dams also supply a water supply, or an improved habitat for fish and wildlife; they may store water for hydroelectricity as well.2 A diversion dam is a generation of a commonly constructed dam which is built to provide sufficient water pressure for pushing water into ditches, canals or other systems. These dams, which are normally shorter than storage dams are used for irrigation developments and for diversion the of water from a stream to a reservoir.
One efficient way to acquire energy is Hydropower. Hydropower is power derived from the energy of falling water or fast running water. This energy converter is harmless to the environment. Other ways will affect the atmosphere and the environment in a negative way. The most common device for hydropower is a dam. It relies on the water cycle. This is one of the oldest sources of energy.
Hydroelectricity is a known renewable energy resource that provides substantial benefits for our wealth, our health, and for our global economy. There are five types of renewable energy we can use on a daily basis throughout our lives, but the most widely installed form of renewable energy is hydroelectricity. Hydroelectricity is electricity created by converting the kinetic energy of flowing water. Best thing about this source of energy is that it’s timeless and renewable, which means it will never run out, however we had to figure ways to store this energy. In order for them to harness this energy for other people, they had to build generators that convert all the potential energy of rapid moving water into electrical energy. (http://www.ems.psu.edu/~elsworth/courses/cause2003/finalprojects/vikingpaper.pdf)
The wind is an incredibly valuable renewable energy source and is in the forefront of renewable energy developments. It is used to convert wind energy into energy that can be harnessed and used via a variety of methods, including; wind turbines, windmills, sails and windpumps. For a renewable energy source, however, it is wind turbines that are used to generate electricity (see figure 1). Wind power has been used for this since the end of the nineteenth century, after Professor James Blyth of the Royal College of Science and Technology first attempted it (Boyle, 2012). However, It wasn’t until the 1980s that using wind power technology was sufficient enough to experience a rapid growth of the technology.