PG Assignment Report
Name: Junnan LIU
Student number: z5057871
Course code: SOLA 9004
Hydroelectricity
Introduction and Executive Summary
At the present time, renewable energy is a tendency in the whole world with consume of petroleum and the environment problem. There are a lot of reasons to let Elbawener to use renewable energy, some of them I list as follows:
First of all, renewable energy is essential to Elbawener 's future economic growth and prosperity in a carbon-constrained world. (Introduction of Renewable energy, CEFC, 2015) This is really a perfect thing for Elbawener. What’s more, renewable energy would help lower Elbawener 's and Australia 's carbon emissions, this is really good for the environment of
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Because there has a large river nearby and the technology of hydroelectric is advanced and stability.
I will list the details of hydroelectric for this city below.
Physical Basis of the Technology
So just how do we get electricity from water? Actually, hydroelectric and coal-fired power plants produce electricity in a similar way. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator, which is the motor that produces electricity. A coal-fired power plant uses steam to turn the turbine blades; whereas a hydroelectric plant uses falling water to turn the turbine. The results are the same.
Take a look at this diagram of a hydroelectric power plant to see the details: (Hydroelectric power, Howard Perlman, 2015)
As the picture shows above, the principle of hydroelectric is very easy: The fast moving water (kinetic energy) strikes the turbine and they will start moving (mechanical energy) and then the energy is used to run electric generators, and then we could produce power what we need.
There are four parts of a typical hydro-power plant which are Dams, Turbines, Generators, Transmission lines. (Beauty of Hydro-power, 2015)
Dams: The dam is made on a river to collect water and also serves as a water reservoir. To make water have higher potential energy and also control the water flow through pen stocks.
Turbines: Convert the kinetic energy of water into mechanical energy. The
The music blared so loud through the speakers at the bar and grill MacGowan's Haven, that Alannah Chambers worked at that she had to shout in order for her customers to hear her. "What would you like sir?" She yelled at the middle aged man on the other side of the counter. He was a heavy set man with thinning salt and pepper colored hair and thick glasses, he wore faded blue jeans and a blue shirt that looked like it seen better days. Lots of them. He had a mustard stain on his shirt too that he hadn't bothered to wipe up. "Uh, I'll take a beer and a piece of that ass babe," he said, and grinned wickedly at her. If it had been a few years sooner, Alannah would have ignored him, but not this time, she was done with little-miss-shy-girl that
Water turbines are near the oldest ways to run power without using fossil fuels. The new age had turned these into hydro turbines that generally reside in dams. These machines take similar shape to wind turbines. Hidden in the base of a dam, there is a very large turbine that, in a simple explanation, when water runs through it spins. With the energy used by the spinning turbo it is turned into different power sources that are stored into power cells. Way back in time, this idea was used in power mills. Those old spinning wheels on the side of houses that rotate with water pressure. The first power plant was constructed in 1879 at Niagara Falls, Canada. In the United States the first plant was in 1882 in Wisconsin. These extravagant machines seemed marvelous, but that is no longer the outcome. The current age hydroelectricity dams are currently being shut down for harmful aspects triggered from the giant production. Causing an environmental failure to marine life and habitats all around. The possible outcomes are: changing the oxygen levels in the water that cause organisms to perish; fluctuating water levels that cause different
Hydropower works by a generator turned by a turbine. A dam raises the water level so the water can descend making the turbine turn from the power of the falling water. When the turbine is turned it produces electrical energy. The reservoir that is formed stores water. Transmission lines carries the electricity from the hydropower plant to cities, business and homes.
Everything runs with electricity and it is produced by dams. Hydro-electric dams are very important nowadays as they supply a lot electricity. Society believes that hydro- electric dams are not very useful in the creation of electricity. Hydro-electricity is electricity which is produced by water. Canada is ranked second out of the world in the production of hydro-electricity and the hydro-electric dams produce 60% of Canada's total energy. There are about 933 hydro-electricity dams in Canada. Quebec has the most of these dams, there are 333 hydro-electric dams in Quebec. Hydro-electric dams are not an environmentally responsible form of generating energy. The hydro electric dams will cause droughts and floods, increase global warming, and
Hydropower is a very big provider of power in Costa Rica because it is so efficient the water never stops so that power it is providing Costa Rica with 80.27% of their energy. In Costa Rica they built a dam and the water has to get thru the dam by using the water pressure from the reservoir, it passes through the dam and spins the blades of a giant generator which makes electricity. Hydropower is ran by water so it's clean and won't pollute the environment, unlike power plants that burn fossil fuels, for example coal, and natural gas.
Dams are used to generate hydropower by releasing the water to move the turbine that generates the power. Hydropower is a big industry in the United State it is responsible for most of the United States renewable energy resources. Dams are made for the water storage in areas where water is not easily accessible. The storing of water allows communities to have a reserve water supply in case of a drought or water shortage. In places like California that have been in a drought for years would not be able to survive without the Dams and reservoirs to keep a water supply. Without this water, the cities would have to move to a climate with more available
How do Hydroelectric dam work? Hydroelectricity uses the kinetic energy of falling water to turn a turbine. Commercial Hydroelectric dams tend to cross large rivers and involve a change in elevation. Large Hydroelectric dams involve a reservoir to hold water. As the water moves downstream it is
A more advanced version of hydropower is hydroelectric power. It is the electricity created by water. For example, when the waterwheel receives water pressure, it begins to turn. Connected to a motor, the wheel begins to generate energy. Eventually, the power is dished out and distributed
The law states that energy cannot be created or destroyed, but it can be transformed. Energy transformation, also known as energy conversion is the process of changing one form of energy to one other. More simple forms of energy include motion, heat, light and sound, yet even more basic forms of energy are kinetic and potential energy forms. To improve upon this project, I decided to add another form of energy to the mix. I decided to use movement as the secondary source of energy, which contains energy of the kinetic form. The way I was able to add this supplementary source of energy is utilizing gravity. By having the water drop from a certain height, I was able to use the gravitational pull on the water, increasing the falling speed of the water. The water falling at a quicker pace increases the amount of energy the water turbine collects, increasing the amount of electricity, the type of energy, it can
One resource that is essential to produce electricity is renewable energy. Providing one’s own energy consists of utilizing solar panels, wind turbines and micro hydroelectricity. Solar panels absorb energy from the Sun to produce solar energy. A great number of people who live off the grid use solar power. Wind turbines generate electrical power from the wind and functions in the reverse manner as a fan does. Micro hydroelectricity is another source of energy, which fascinatingly “uses a source of running water, like a stream, to generate electricity” (Dunn 3). Between all three sources of renewable energy, micro hydroelectricity is the most efficient, reliable and commonly used form.
In this paper I will be discussing the renewable technology Hydropower and the pros and cons of it. I will be using three separate articles from GREENR focusing on hydropower as a whole and some of the possible downsides of this technology in addition to the very noticeable positive effects from hydropower. The three articles mentioned are "Building BRIC: Carrieann Stocks takes a look at recent developments in hydropower across Brazil, Russia, India and China." (International Water Power & Dam Construction) (Jan. 2015), "Electricity Production from Hydroelectric Sources, Top Ten Countries, 2003/4." (Global Reference on the Environment, Energy, and Natural Resources Online Collection), and "Green streak." (Earth Island Journal) (Jun. 22, 2015). I will be discussing the possible reasoning behind some people not wanting to focus on this possibly very beneficial alternative and try to explain why “If Hydropower is available why don’t we use it?” Keywords: dams, turbine, hydroelectric, renewable resource, nonrenewable resource
To elaborate, dam is one of major parts to discuss about firstly. The process of a dam is to store water by creating a large reservoir. This reservoir could be a lake or any other natural water source. The dam is most likely located at higher level ground than the turbines of the power plant. The dam contains gates at its bottom to control the water flow. As the gates open, the water stored in the dam flows downstream as gravity pulls everything down or towards the earth’s surface. The falling water goes through a pipeline called penstock. This pipeline leads to the turbines in the hydroelectric power plant. Much water flow in the pipeline means greater pressure from water. As the water comes down the pipeline, it hits the blades of the turbines and makes it rotate simultaneously. The speed of the rotational blades depends on the speed of the water flow. As a result, much pressure of water flow will rotate the blades with a higher force and vice versa. Francis Turbine is the turbine that is most common for building hydroelectric power plant. This type of turbine looks like a big
In contrast, some believe that renewable energy is a key factor involved in helping the economy to grow. Many jobs are created in the manufacturing and running of renewable energy plants. The renewable energy and energy efficiency technologies created 8.5 million new jobs and $970 billion in revenue in the year 2006 (Langwith, “Renewable Energy is Economically”). The American Solar Energy Society says by 2030 it could generate up to $4.5 trillion in revenue for the U.S and create 40 million new jobs. This would represent one in every four jobs (Langwith, “Renewable Energy is Economically”). This shows how vital it is to get renewable energy companies in the U.S. It is important to build a stable economy again and do it all while helping the environment.
Wind turbines are a renewable energy they work by the wind turning the blade, the blade then turns a shaft inside the nacelle(the box at the top of the turbine), the shaft then goes into a gear box which increases the rotation speed, the generator then converts the rotational energy into electrical energy, the transformer then converts the electricity from around 700 volts to the right voltage for distribution which is usually 33,000 volts after all of these procedures, the national grid then transmits the powers around the country.
With the high-speed economic development and the incredible growth in human population around the world, electricity demand has increased rapidly (Zarfl et al., 2015). As a fast growing country with the largest population in the world, the electricity generation in China nearly doubled between 2005 and 2011 (U.S. Energy Information Administration, 2014). In order to narrow the gap between electricity generation and consumption and, on the other hand, alleviate the environment problems mainly caused by fossil fuel, China has encouraged more investment in renewable energy (Ibid). Hydroelectricity has become the most important renewable resource as China has a large amount of hydroelectric power potential (Ibid). The word “hydroelectric” relates to “the generation of electricity using flowing water to drive a turbine which powers a generator” (Oxford Dictionaries online, 2015). Electricity produced by using