...can be seen in day to day life. For example, in cars, the chemical energy of fuel is converted into the mechanical energy of the vehicle; in motor electrical energy is converted into mechanical energy, in hydro power plants the hydraulic energy of water is converted into electrical energy, in nuclear power plants the nuclear energy is converted into electrical energy etc. With the Green movement we are seeing increased use of solar energy, such as solar water heaters and solar cookers where solar energy is converted to heat energy (Kehmani, 2010). While mankind has learned to harness energy and convert it to useful forms, Thermodynamics is governed by scientific laws. The first law of Thermodynamics is that energy can’t be created or destroyed (Kehmani, 2010). The second law states that heat energy can only be transferred from a body of higher temperature to a body of lower temperature. The third law refers to the law of absolute zero on the Kelvin temperature scale, stating that entropy of the body at absolute zero is zero and it can never be negative (Kehmani, 2010). Last, is Zeroth’s Law, which states that if two bodies are in thermal equilibrium with a third body then they are also equal to each other. For example, if body A is the same temperature as body C and body B is the same temperature as body C, then A and B are the same temperature (Kehmani, 2010). Fossil fuels such...
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...the light blue areas below. You may add additional lines as you see fit. 2. Refer to the examples in grey boxes to help you along. 3. By Sunday 11:59 PM (Mountain), upload your completed outline to the Dropbox. ------------------------------------------------------------------------------------------------------------ STEP 1. In one complete sentence, state the topic of your paper in the space below. Example: Renewable energy is a sustainable alternative to fossil fuels. Paper Topic: Air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. ------------------------------------------------------------------------------------------------------------ STEP 2. Fill in the main points you want to talk about in your paper. Add more lines as necessary to cover all of your primary topics. Example: I. What fossil fuels are II. How fossil fuels contribute to global climate change III. Solar power IV. Wind power V. Hydroelectric power VI. Conclusion Outline of Main Points: I. What causes air pollution II. What is air pollution III. How does air pollution form IV. What types of air pollution are there V. How does air pollution spread ------------------------------------------------------------------------------------------------------------ STEP 3. Copy your main points into the Roman numeral placeholders below. Then add the...
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...the importance of the different type of fuel cells, the advantages and disadvantages of consuming fuel cells and appropriate applications to each type of the fuel cells. Statement of the problem: Billions of people in advance, developing and poor countries are dependent in fuels for their living. Millions of people or even billions are travelling each day by boarding a bus, car, ship, rail transport, airplane or riding on a motorcycle powered by internal combustion engines. Millions of people every day are depending on LPG or CNG in preparing their food. Still many of the power plants are using internal combustion engines as prime movers to their electric generation for the consuming public. And there are other few facilities that makes used of liquid fuels as their source of energy. The fuel consumption every passage of time increases and thereby price of fuel increases too as a result of these increasing demands to fuel around the globe. Businessmen, scientists, researchers, and engineers are exerting bountiful knowledge, physical efforts and million dollars in searching for other possible sources of fuel which may bring broader or wider solution to the global need of lesser amount of fuel and have a pollution-free effect to environment. The engineers who worked on these projects discovered recently the new breed of fuel cells as a source of energy to power automobiles. Toyota Car Industry is one of the users of this fuel cell by taking the reverse hydrolysis...
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...Brittany Money Professor Costello R&W 305W 22 October 2014 Nuclear Power a Solution to Climate Change Climate change is all around us whether someone believes it for themselves or not. From the melting ice caps in Antarctica to the rising seas of Bangladesh. The increase of temperature in the earths atmosphere are rapidly getting worse and the reason for it is the burning of fossil fuels. We as a country, need to make a change in how we produce electricity to help our earth become a more sustainable place for our future children. A great solution to this issue we are facing is nuclear power. Nuclear power has its advantages and disadvantages just like any other form of energy. Although I believe that the advantages out weigh the disadvantages making it the perfect fit to replace fossil fuels. Nuclear power does have its disadvantages, with one being the fear of nuclear accidents. What happened at Chernobyl was the worst nuclear accident the world has seen. Although even that accident isn’t as damaging to the earth as what is happening to our earths atmosphere as we omit carbon dioxide, burning fossil fuels to power our electricity (The Right 61). Another disadvantage of nuclear power is the radioactive waste that the reactors produce. If not stored properly this waste can omit radiation into the air harming many people around the plant. Even with the potential harm scientist are able to dispose of it by solidifying it then it gets buried underground (Chandler). When its...
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...renewable energy. I will lay out the advantages and disadvantages of each form of renewable energy and how they affect people, wildlife, and our environment. The Law of Conservation of Energy The Law of Conservation of Energy states that the total amount of energy in an isolated system remains constant over time (is said to be conserved over time) although energy within the system can be changed from one form to another or transferred from one object to another (Law of Conservation, n.d.). This law applies to energy use in that we are taking a form of energy and changing it into a different form. We are not actually using up the energy but changing the form of it from one to another. An example of this can be solar energy. We take the energy from the sun and change it into usable energy for our homes, businesses, schools, and hospitals. This law also applies to energy conservation in that some energy is always wasted when being changed from one form into another. It is impossible to change energy without actually wasting some of it. In many energy conversions, more energy is wasted that is used for work such as automobile engines, they typically waste more than two-thirds of the total energy used, primarily through heat (Law of Conservation, n.d.). Fossil fuels such as oil, natural gas, and coal were formed many hundreds of millions of years ago before the time of dinosaurs, hence the name fossil fuels (Where Fossil Fuels Come From , 2012). Coal actually provides...
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...ball (kinetic energy) striking a pin and displacing it (potential energy). Chemical energy is a form of potential energy that is absorbed or released by chemical reactions. Dried wood stores chemical energy and when burned, releases chemical energy that converts to heat and light. Radiant energy is energy that travels through space. An example of radiant energy would be light. The light from the sun makes it possible for living things to live on earth by providing fuel and warmth. Electrical energy is a form of energy from electromagnetic interactions. Electrical energy is the presence and flow of an electric charge. Lightning or a light bulb would be examples of electrical energy. Nuclear energy is regarded as a source of power and also called atomic energy. It is energy released by a nuclear reaction. Sun is nuclear energy that is produced naturally. Other examples would be nuclear power plants and nuclear weapons. Define what we mean by fossil fuels and explain why they are an attractive source of energy. Fossil fuels are energy sources such as petroleum, natural gas and coal which...
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... Energy resources with low or negative net energy need help to compete in the marketplace • Any energy resource with a low or negative net energy ratio cannot compete in the open marketplace with other energy alternatives with higher net energy ratios unless it receives financial support from the government (taxpayers) or other outside sources of funding. – For example, the low net energy yield for the nuclear power fuel cycle is one reason why many governments throughout the world must heavily support nuclear power financially to make it available to consumers at an affordable price. Section 13-2 WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF FOSSIL FUELS? Fossil fuels supply most of our commercial energy • The direct input of solar energy produces several other forms of renewable energy resources that: wind, flowing water, and biomass. • Most commercial energy comes from extracting and burning nonrenewable energy resources obtained from the earth’s crust. – 87% from carbon-containing fossil fuels (oil, natural gas, and coal). – 6% from nuclear power. – 8% from...
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...and unsustainable energy supply, also known as fossil fuels, coming to an end, we must consider other forms of energy. Nuclear energy is the energy released during nuclear fission or fusion, when used to generate electricity. Renewable energy is energy from a source that is not depleted when used. Both types of energy are considered to be replacements for fossil fuels, however both with benefits and drawbacks. One of the main advantages of nuclear energy is that it is a clear power with no atmospheric emissions therefore it does not contribute to global warming. They do not produce smoke particles to pollute the atmosphere or emit gases that contribute to acid rain. When comparing this with the atmospheric emissions of fossil fuels, it is a big advantage. It is by far the most concentrated form of energy - a lot of energy is produced from a small mass of fuel, this reduces transport costs. It is considered low cost power for today’s consumption. The technology has already been developed, it is ready for market use. It is not geographically limited as nuclear power plants don't require a lot of space; they do not need a large plot like a wind farm. It is reliable, unlike some forms of renewable energy, it does not depend on the weather. We can control the output from a nuclear power station to fit our needs. Although radioactive, nuclear power does produce a small amount of waste. One of the main disadvantages of nuclear power is the potential of high risk disasters. Such as the...
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...Roeder Environmental Science Rick Henry There are many different types of fuel used to power a vehicle, some of which include solar, electrical and diesel. Out of these fuel types I would choose diesel as the best. There are advantages and disadvantages in all types of fuel sources. Solar and electrical are good environmentally but the diesel overpowers in all categories. Diesels are the better choice of all the fuels in my opinion. I would choose a diesel fuel because according to Consumer Reports they have a 30% better fuel economy than a gasoline vehicle. Also they are more affordable than a hybrid vehicle. According to The Diesel Page, diesel engines get better mileage than gasoline engines. Diesel engines also do not have spark plugs or distributors so you do not need to worry about the usual maintenance of these two things. Diesel engines are built to be used for hauling and they usually also last longer than gasoline engines (Health Research Funding). While speaking of hybrid vehicles, let’s backtrack to the solar and electrical vehicles. According to How Stuff Works solar powered cars have many practical problems with them. Solar powered cars do not gather enough energy to move the car very quickly, there cannot be too much weight in the car otherwise it will slow it down and use more energy. Solar cars also do not have a very good way to store energy. The layout for solar power is good for buildings, but it is much too heavy to out in a car so it does not have...
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... ocean, hydropower, biomass, geothermal resources, and biofuels and hydrogen derived from renewable resources.” Renewable energy resources and significant opportunities for energy efficiency exist over the world. Compare to other traditional energy resources like fossil fuel, which are concentrated in a limited number of countries. The rapid development of renewable energy and energy efficiency, and the technological diversification of energy resources, would provide a sustainable and stable supply of energy and a significant growth in economy for the world in a foreseeable future. History of Renewable Energy Prior to the development of coal in the mid 19th century, nearly all energy used was renewable. The oldest known use of renewable energy, in the form of traditional biomass to fuel fires, dates from 790,000 years ago (K. Kris, 2013). The second oldest usage of renewable energy is using the wild to drive ships over water. This can be traced back 7,000 years ago, to ships on Nile (The Encyclopedia of Alternative Energy and Sustainable Living, 2013). Moving into the time of recorded history, the primary resources of traditional renewable energy were human labor, animal power, water power, wind and firewood (traditional biomass). By late 19 century, people concerned of running out of coal, so they promoted experiments with using solar energy. The development of solar engine continued until...
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...Introduction 2. Advantages 3. Disadvantages 4. Conclusion Wind Energy 3 Introduction In light of concern owing to depletion of fossil based fuels it is emerging that wind energy is receiving considerable thought as a solution to the looming energy crisis. The Australian Cooperative Research Centre (CRC) for Renewable Energy (ACRE) was established in July 1996 with a goal of undertaking research on issues of power generation, storage and conditioning, energy efficiency, system integration and policy analysis (Smith 2008). The goal of the Australian government to attain a renewable energy target of 2% by the year 2010 caused a dramatic interest in wind energy within the country (Paulson 2001). Advantages With the current focus on global climate issues wind energy has been found to be very advantageous as it is produced naturally (Wagner & Mathur 2009). The process of production involves manipulation of a naturally available resource (wind power) and thus does not pollute the air. It is known that power plant rely on combustion of fossil fuels and thus pollute the environment. Turbines do not produce any pollutants (Wagner & Mathur 2009). Another advantage with wind energy is that unlike fossil fuels which are geographically isolated to specific regions, wind energy is available in almost all regions of the world (Wagner & Mathur 2009). This wide distribution of the resource suggests that this resource can be a major factor in reducing pollution caused by consumption of fossil fuels. It also...
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...beauty of wind power being harnessed by the wind turbines that line the fields. When thinking about renewable alternative energy and places that are successfully incorporating the energy into daily lives, Texas immediately came to mind. Texas is ranked number one in the nation for wind energy capacity (Texas wide open for business, 2014). If one were to look at Texas as a country, it would rank number 6 on a global scale for installed wind energy capacity (Texas wide open for business, 2014). Wind turbines are used to generate electricity from wind. What is interesting about wind energy is that it is a form of solar energy, caused by the uneven heating of the atmosphere by the sun (Wind Energy Development, n.d.). There are advantages and disadvantages to wind energy. First to discuss a few advantages. Wind energy is friendly to the environment and does not use fossil fuels while generating electricity from wind energy (Clean Energy Ideas, 2007-2015). Turbines are a great way to generate energy in remote location and they can be different sizes to support different population sizes (Clean Energy Ideas, 2007-2015). When wind power is combined with solar electricity it is great for developed and developing countries in providing a steady, reliable supply of electricity (Clean Energy Ideas, 2007-2015). Finally, wind is free, and new technologies are making this more efficient to harness wind power (Clean Energy Ideas, 2007-2015). Next, to discuss a few disadvantages. One of the...
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...biomass energy source ("EIA Energy Kids - Biomass," n.d.). As well as many other forms of energy, the people need to know how biomass is used, the advantages, and disadvantages that it brings people. Biomass hold stored energy from...
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...Title: Nuclear Power Advantages General Purpose: To inform Specific Purpose: To inform the audience about the advantages of using nuclear power as an alternative power sources. Thesis Statement: After taking nuclear power advantages into consideration, not many people would feel the need of sticking to conventional fossil fuels, which are causing so much harm to the environment. 1. Introduction A. Attention Getter: When you hear the word of “Nuclear”, what will be in your mine? Nuclear power is being pitched as a suitable replacement for the age-old fossil fuels, and this success of nuclear power can be attributed to various advantages that it has over the other sources of energy. As of today, nuclear power constitutes for about 16 percent of the total power generation in the world. Several countries, such as Japan and France, have acknowledged the prominent advantages of nuclear power and resorted to it. For example, more than 75 percent of power generation in France can be attributed to nuclear energy. Other countries are expected to follow the suit soon, as their evaluation of advantages and disadvantages of nuclear power plants is in progress. B. Reason To Listen: Owning to its various advantages, nuclear power has gained wide popularity as one of the most efficient alternative energy sources in the world. C. Thesis Statement: After taking nuclear power advantages into consideration, not many people would feel the need of sticking to conventional...
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...plans to move into the national market by introducing a fleet of alternative-fuel vehicles into its existing fleet. While alternative fuels are still not widely available outside major metropolitan areas, we believe adding alternative-fuel cars to our fleet in areas where alternative fuels are readily available will increase our customer base and open new markets. This is particularly true in large east coast metropolitan areas that consider themselves to be environmentally proactive, such as Atlanta, Boston, New York, and Washington D.C. With the extremely high price of gasoline, there is a much higher demand for alternative-fuel cars, so by providing an option to our customers for these types of vehicles, Lotus will be able to tap into the green minded customer markets that already exist in these cities. Our team believes that introducing this fleet into Lotus’ already existing fleet will add a new dimension to the company and provide the growth we need to compete in these new markets. Our team will explore the advantages and disadvantages of the most widely available types of fuels and automobiles. We will also discuss the economic impact this fleet will have on Lotus. After exploring these options, we will provide our Chief Financial Officer with the types of cars and fuels best suited for these markets. These recommendations will be based on the range of the automobiles and the availability of the fuels within that market. Our recommendation will take into account both the environmental...
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