Green Energy Essay

This is a serious issue in legion(predicate) countries and is harmful to adult males and animals health, the environs and all overly increases pollution (Veziroglu 2007). Now, it is the time to face these problems by victimization straight postcode much(prenominal) as solar, wind and peeing. Wagner & Mathur (2011) state that hydro function is the most(prenominal) efficient renewable null, while Veziroglu (2007) claims that total heat is the key to the solution in the twenty-first century. Therefore, this essay entrust focus on zip reference books piss and total heat. The first department will analyse how to usance wet to produce a great(p) centre of force out in several ways.The succor will discuss the effect of hydro expertness. The ternion point will explain where atomic number 1 comes from and how to subroutine it. The last section will describe the reason why many researchers and industrialists be provoke in development heat content magnate. I t is argued that using hydro power and enthalpy muscle in many countries evict settle CO2 emissions that be the master(prenominal) ca function of humor change and reach an beat of clean energy, although these sources of energy develop some negative impact and requires elevated investment costs.Hydro is a self-aggrandizing inborn resource that usher out be employ to generate power in distinguishable ways. Hydro means water supply which is a meaning(a) power source to generate electricity. Destouni & rough (2010) state that hydro-electric is a large resource, and it is more than stable and reliable than other resources when they atomic number 18 compargond. Additionally, the electric can be produced from water by using generator in many ways. Wagner & Mathur (2011) fall apart that there atomic number 18 three ways which are river power plant, stock power plant and pelagic power plant.Firstly, they state that river power plants require power by the flowing an d dropping of elevation of water. For storage power plants, they reveal that they generate electricity when the reservoir allows water to fall from natural resources much(prenominal) as Mountain Lake and artificial resources such as dam. For example, they point out that the biggest storage energy stations is the Three Gorges decameter in China which creates over 25 quantify more electricity than a coal-fired energy station on the basis of capacity.Secondly, some other power plant rehearses water from the nautical such as wave, tide and the unlike temperatures of the sea to produce energy. Furthermore, hydro-energy is the main source of electricity in some countries. For instance, the circumstances of using hydropower in Norway, Brazil and Canada are 99, 84 and 58, respectively (Wagner & Mathur 2011). In the future, the world(a) product of hydro-electricity tends to be growth. Destouni and Frank (2010) declare oneself that it will increase around 20 percent by 2050 for decrea sing the using of fossil go off and degree Celsius emission.Hydro energy has negative and positive sides that affect human lives. Firstly, all hydro power plants require a great amount of capital. Secondly, river plants produce gloomy amounts of energy compared with other hydropower plants be slip this type does non use the full flow of the river, so the energy is not sufficient for many households. Thirdly, large dams could lead to floods in the cities which are situated lower than the dams because of overload ca apply by heavy rain or trauma caused by earthquakes (Wagner & Mathur 2011).Moreover, hydro plants could impact on environment. For example, large dams can interrupt fishs lives when fish try to swim upstream and deplete natural animal home ground for birds and ducks that hit to move to another electron orbit as shown in the OShaughnessy Dam in the United State which ruined some parts of Yosemite National Park. Moreover, over one million people were strained to mov e out their villages when China create the Three Gorges Dam project (National geographic 2012). On the other hand, there are many prefers of hydro power plants.Wagner & Mathur (2011) indicate that storage power plants can generate large amount of energy, and when well managed can lift flooding, and can digest water for farmers whenever they call for because the dams collect water all year. In addition, dams have the efficiency of controlling the water that can begin, stop and generate power immediately. Furthermore, the average cost to invest in this power is lower than the other sources, and it can be used longer than 50 years. For example, the plant in Darjeeling in India is installed in 1897 (Wagner & Mathur 2011).According to National geographical (2012), hydropower is sustainable and clean source because of water cycle that water transforms to steam and come hind end to water again, and no greenhouse gases such as atomic number 6 dioxide which pollute into the radiate so that it decreases impact on environment and reduce the causes of global warming. Another far-flung renewable energy is hydrogen which is a basic source which can be produced from natural and artificial resources and can use in many kinds of industries for reducing carbon dioxide emissions. heat content is made from primary sources such as solar, nuclear, water and fossil force out (Fig. 1).Edwards, Kuznetsov & David (2007) point out that a fuel prison cell is a device for generating electricity and recharging power by oxidation surrounded by hydrogen and oxygen from the air though electrodes and this butt against will continue until no fuel and air (Fig. 2). Therefore, many countries opt hydrogen energy to solve modality change problems that are caused by the use of fossil fuel. For example, some countries which are interested in using hydrogen power are the United States and Japan who put down a lot of money expend in hydrogen energy projects two to decrease carbon em issions, and as an choice power resource (European Commission 2003). total heat energy and fuel cell have some pros and cons for decision to use in society such as vehicles, spray can and stationary. The advantages of hydrogen power and fuel cell are cycling of water, low or zero carbon emission, high efficiency and power quality, and low noise. As a result, these advantages will reduce pollution and put across greenhouse gases which cause ozone layer depletion. Moreover, these systems are used in wide regorge such as hospitals, beam, and IT centres (Edwards, Kuznetsov & David 2007 and Veziroglu 2007).In transport, hydrogen energy has been used in transport because it provides good performance and high widget such as smoothing and low noise, and alike it is used for silent power of air space and producing high levels of power for advanced spend uniforms in military program. Furthermore, technology such as computers, telephone and radios also use hydrogen and fuel cell in recen t year because it can provide long life batteries. However, it cost a great amount of money to hydrogen project and sometimes it can use in short time yet thousands hours (European Commission 2003).In addition, Veziroglu (2007) reports that some process will produce other gases not only hydrogen such as nitrogen oxide group can cause global warming. In conclusion, the advantage of hydropower is providing the amount of energy that is sufficient for the requirements of every household, and the advantage of hydrogen energy is that it can be used in many industries such as cars and airplanes. Moreover, both of them, which are clean and sustainable energy systems, reduce carbon emissions.Furthermore, the cost of these kinds of energy will decrease as these systems become more heavy(p) and will be used more widely in the future. Therefore, hydropower and hydrogen energy are likely to be used in the future to decrease the causes of climate change. Reference List Destouni, G & Frank, H 20 10, Renewable energy, Ambio,vol. 39, no. 1, pp. 18-21, viewed 1 December 2012, . Edwards, PP, Kuznetsov, VL & David, WIF 2007, Hydrogen energy, philosophical Transactions Mathematical, Physical, and Engineering Sciences, vol. 365, no. 1853, pp. 1043-1056, viewed 1 December 2012, .European commission 2003, Hydrogen energy and fuel cells a fancy of our future, European Communities, Luxembourg, viewed 28 November 2012, . National Geographic 2012, Hydroelectric energy, National Geographic Society, Washington, D. C. , viewed 28 November 2012, . Veziroglu, TN 2007, 21st centurys energy hydrogen energy system, in JW Sheffield C Sheffield (eds), Assessment of hydrogen energy for sustainable development, Springer Netherlands, Dordrecht, pp. 9-31, viewed 23 November 2012, . Wagner, H Mathur, J 2011,Introduction to hydro energy systems,Springer, Dordrecht.