Wednesday, October 30, 2019
The country of Armagede Essay Example | Topics and Well Written Essays - 1500 words
The country of Armagede - Essay Example A wild animal refuge spans an area of some 1500 miles to the south. This refuge is heavily guarded against poachers and contributes more than three million dollars a year in tourism dollars that offset the cost of the reserve and contribute to the hospitality and cultural art industries in the country. The country supports a population of 4,763,271 Armagede nationals with about population of 3,445,192 who are largely subsistent farmers with a per capita income of about population of $223. The largest concentration of citizens is in the two largest cities in the north and south where residents are employed in government jobs. There is a population of approximately 544 people per square mile. In the past decade the country has begun to maintain vital statistic and economic records that help show a continuing improvement in the countryââ¬â¢s economic indicators. The per capita income has increased by nearly 5% per household over the past decade, as represented by the graph below. The re is one university, Aduine University, in the north, a state sponsored university staffed largely by well educated professors from countries that offer incentives for foreign academic services. Most of the graduates go on to work for the government and in state sponsored elementary, middle schools and high schools. A large number of graduates leave the country for graduate studies in medicine and law, but statistics support the fact that these individuals return to Armagede upon completion of their studies.
Sunday, October 27, 2019
Industrialized Building System (IBS) | Literature Review
Industrialized Building System (IBS) | Literature Review CHAPTER 2:Ã LITERATURE REVIEW 2.1 Introduction The objectives of this chapter will identify and study into the details and provide the literature review of Industrialized Building System (IBS). In this literature review of building system will also be covered in this chapter. The contents will focus on definitions of IBS, characteristic of building in Malaysia with application of IBS, advantages of IBS and disadvantages of IBS. The 5 types of widely used IBS in Malaysia project will be study in this chapter. In addition, the comparison of suggestion method which use of IBS in different building in Malaysia will be carried out in this chapter. Besides that, the systematic solution by applying IBS in current Malaysia projects which able to reduce waste during construction project life cycle which able to create and heading toward friendly or eco environment compare to conventional method will be carried out in this chapter. 2.1.1 Definition of IBS According to Dietz (1971), in the early literature defined IBS as the whole process of all the subsystems and components make full utilized of industrial production, transport and assembly technology. The IBS system is actually apply in construction industry is mainly to reduce input and generate more output by maximize or fully utilized the production, transportation and assembly during construction stage which indirectly save up a lot of time and costs for the process of above. (Dietz 1971) Meanwhile according Warszawski (1999), IBS defined as a set of interrelated elements, to take collective action that the designated and performance of the building. In additional, IBS is defined as a process of investment in facilities, technology and equipment, to minimize the amount of labour in the site, to improve the quality of building and to increase the speed of construction. From here we noticed that not only time and cost is being save up but indeed quality also can be improve by applying IBS. (Warszawski 1999). According to Parid (1997), IBS defined as a industrialized production technology used by the system, whether in component production or assembly of building. (Parid 1997) The interpretation from Esa et al (1998), IBS as continuous use of the system, so that the manufacturing use end-user to reduce waste of resources and enhance the value of each building craftsmen. (Esa etal 1998) According to CIDB, IBS is a construction process that transferring the substantial activities from site to factory where the building components are manufacture in factory then delivery to site and assembled at site. This is the process that involve prefabricated the elements of building in factory by using machine or formwork and on-site installation. 2.1.2 Classification of IBS In early stages, Badir (1998) proposed four types in Malaysia with Badir-Razali classification. These building systems which is conventional system, cast in situ system, composite building system and the prefabricated system is shown in Figure 2.1. Each building system is composed of representatives of the respective construction methods, thus further through its construction characteristics of the technology, features and geometry. (Badir 1998) Figure 2.1 : Types of building system according to Badir-Razali classification in Malaysia (Badir 1998) IBS also can be classified according to several aspects: According to structural system According to material According to relative weight of component 2.1.3 Classification according to structural system Panel system The loads are distributes by the large floor and wall panel where the building loads is support by wall in panel system. This system is suitable for those building are required large wall and this system is not suitable to building with large span. Frame system In frame system, the building loads are support by column and beam. The walls used is required light and easy to fix and concrete panels are introduces as flooring element. Box system The box systems is include those systems that make use of three-dimensional modules or boxes for fabrication of habitable units that are able of withstanding load from various directions due to their internal stability. 2.1.4 Classification according to material Timber The prefabrication of timber consists of two types which are ready-cut plus shop fabrication of joints (column and beam) and structural panels only consists of walls and floors without column and beam. Steel All the steel elements are prefabricated in factory then only transport to site to joints by welding or bolting at site. The large proportion of the strength to the weight allows a long-span or high-rise building. Reinforced concrete Reinforced concrete has high degree of availability, durability, low material cost and fire resistance. There are two basic trends in development of reinforced concrete IBS components which are precast frame members such as columns and beams and panelised components such as walls and floors. Brick and block Brick and block for IBS are prefabricate and lay in factory then only transported to site and last erected at site. With this will ease the construction works at site. 2.1.5 Classification according to relative weight of component IBS components can be classified according to relative weight. Majzub explained that the relative weight of components should be used as a basis for building classification because the factor of weight has significant impact on the transportability of components and has influence on the production method of the components and their erection method at site. Table 1 is shown the building systems classification according to relative weight of component. (Majzub, 1977) Table 1: Classification according to relative weight of components (Majzub, 1977) 2.1.6 Types of IBS and apply to building in Malaysia Based on CIDB (2003) the classification of IBS in Malaysia is broken down into five categories, which is a precast concrete frame panel and box system, steel formwork system, steel framing system, block work system and timber frame system . IBS is a construction process that use of technology, products, components and on-site installation of building system. From the structural classification five of IBS display section, which are mainly classified according to some modifications, the main groups in Malaysia by CIDB. (CIDB 2003) 2.1.6.1 Precast Concrete Framing, Panel and box system Precast concrete components are the most common prefabricated elements in Malaysia. The precast concrete elements are the concrete product that manufactured in a controlled environment and being transported to the construction site for installation. There are precast concrete for columns, slabs, lightweight precast concrete, permanent concrete formwork, and beams. Besides that, it also consists of 3-D components such as staircases, toilet, balconies, lift chamber and etc. High degree of flexibility is one of the advantages of the system in regards of larger of larger clear span between column, resulting in wider open space and freedom of greater areas. Precast concrete wall system consisting og precast floor and load-bearing walls of building. The load-bearing walls and slabs are transfer to construction site for erected. The system is preferred simple and easy flexibility with due to the restriction of removal of load bearing will making it a lesser degree of flexibility. The carefully good coordination and design between builders and designer, the erection process is very fast, and the number of wet trade in the field can be reduced significantly. 2.1.6.2 Steel Formwork Systems This is the system formwork which is designed by manufacturer to replace a conventional timber formwork. The steel formwork is manufactured in the plant and then assembled on construction site. The steel reinforcement and service conduit will be installed on site before the steel formworks are installed. the installation is very easy by using simple support system. It can be described as a mould which the wet concrete can be poured into the mould and form the required shape, these steel formwork systems are subjected to quality control. This type of IBS method is considered as the low level in the construction industry. The steel formwork system that used in beams, permanent steel formworks, tunnel forms and column moulding forms. 2.1.6.3 Steel Framing Systems Steel is a strong rigid materials, suitable for a high degree of flexibility across the structure of long term construction and rehabilitation of the architectural details of the framework construction. The components of steel framing system are rolled into standardized sizes. The component are then manufactured which involves cutting, drilling, shot blasting, welding and painting. Steel frames are erected, welding and the tightening of bolt after they are fabricated. The steel framing systems has been a popular choice, and is widely used in fast track construction project, the system commonly used with precast concrete slab, steel columns and beams. 2.1.6.4 Prefabricated Timber Framing System In the early 1970s, single storey low cost terrace houses mostly built of pure timber frame and wood which sitting on three feet high plastered brick walls and taking advantages of simple raft foundation due to the high weight superstructure. These prefabricated timber framing systems is using the timber in the construction industry for the building. Usually the timber framing system are consists of timber building frames and timber roof trusses. Steel plate is being used during prefabrication of timber to join members of truss. All members needs to be treated with anti pest chemical. 2.1.6.5 Block Work Systems The time consuming traditional brick laying tasks are generally simplified by using block work systems. Interlocking concrete masonry units (CMU) and lightweight concrete blocks are involved in block work system. Fabricated and cured of the components take place in the plant. The elements are normally used as bricks in structures and interlocking concrete block pavement 2.1.7 Advantages of IBS for public housing There are many advantages of implementing IBS. according to CIDB (2003), compares to conventional method. Following are brief descriptions on a number of advantages where using IBS for the public housing:- Advantages Description Reduce construction time IBS will requires less construction time Because both the site work and the fabrication of element can take place concurrently work at site only the erection of IBS components. So, this leads to earlier occupation of the building. Save cost Reducing on-site workers significantly labor cost for contractors. (Wisam 2005). Minimizing cost of transferring waste materials due to quality control and reducing waste material. (Noraini 2009). Exemption of the Construction Levy for housing developers who utilize IBS components exceeding than 70%. (CIDB 2005). Provides earlier occupation of the building, thus reducing interest payment or capital outlays (Peng, 1986 cited in Mian, A.T.E, 2006). Saving in labour Because the IBS components are produced in factory and higher degree of using machine so will reduce of labour dependency of labour and cut down the cost of labour. According to Abraham Warszawski (1999), the labour savings in prefabricated elements may amount to about 80% of their conventional requirement. So, will reduced the total foreign workers need in the construction industry. Optimized use of materials Higher degree of precision and accuracy in the production can be achieve by using machine to produce IBS components and consequently reduce material wastage. So, the wastage at site will be reduced if using the IBS. High quality and better finishes Quality control is an ever-increasing requirement in all construction. Controlled environment in factor, superior material selection and high mechanized technology lead to high quality controlled products. (Din 1984). High aesthetic end products through the processes of controlled prefabrication and simplified installations has maintained and ensured the quality of work in the construction industry (CIDB-(2), 2003 cited in Mian, A.T.E, 2006). Better quality control since production in factory is under heltered environment. Better quality will reduce the maintenance expenses because prefabricated components require less repair and preventive maintenance. Construction operation less affected by weather The fabrication of IBS components will not be effected by climate changes it is done in factory and only erection of the components take place on site Faster project completion due to rapid progress under all weather construction. Flexibility Different systems may use different prefabrication construction methods. IBS will provide more flexibility in the deign of precast element. By the flexibility in Architectural design (Warszawski, 1999). Increase site safety and neatness This method neater and safer site condition can be obtain thru this method. Promote safe and systematic factory working environment as minimal workers, materials and construction waste is requires on site. (CIDB 2003). Construction process can be less thru using IBS components especially for the wet work at site. 2.1.8 Disadvantages of IBS for public Housing Although there are a lot of advantages of IBS, however there are limitations for this system to be use too. Nothing in this world is perfect, so as using IBS. disadvantages of IBS are as follows:- Disadvantages description High initial capital cost The initial capital cost of IBS is usually higher than conventional method. The initial cost is includes the casting beds, cost of constructing the factory and support machinery. This method only can be achieved when undertaking large demand for housing project. Problem of joints These methods are very sensitive to the errors and sloppy work. Water leakage between joints is often the major problem when IBS is being used. This problem is clearer in Malaysia where raining occur rapidly throughout the year. Sophisticated plants and skilled operators The prefabrication system relies heavily on sophisticated plant, when skilled operators are required to the fabrication process coordinate and maintain. The entire project would be on a stand still if any of the section breakdown. Site accessibility One of the most important factors of the implementation of IBS is the site accessibility. IBS requires sufficient site accessibility to transport IBS components from factory to the site. According to Warszawski (1999), the transportations cost of prefabricated elements from plant to their construction site, amount to 3% to 5% of their total cost for distances not exceeding 50kn to 100km. Large working area Building construction using IBS required a large working area for the tower crane, factory, storage and trailers for the IBS components. Most construction in order areas are often congested and fail to provide the area required.
Friday, October 25, 2019
Terrorism - Its Time to Stop the War :: Argumentative Persuasive Topics
It's Time to Stop the War Military measures intended to support the arrest of a terrorist have turned into a large-scale attack on several of the poorest countries in the world, as well as on their populations, which is tormented by hunger and poverty and threatened by uprooting and death. As little as the gap between rich and poor in the world was the cause of the murderous attack on Sept.11, all the more are the attacks against Afghanistan and the Philippines are deepening this gap and thereby multiplying reasons to hate the West and its civilization. In the future the West will be less identified with its best qualities, with democracy, a constitutional order and prosperity than with its shadowy sides, with a lack of respect, arbitrary acts and violence. With every bomb that falls and every western soldier who kills on Afghan soil, the rich part of this world closes its eyes to the suffering of the peoples in the south. Even the apparent successes presently do not change this. With its offensive the West is not only undermining the idea of a collective legal effort to counteract terror, but is also betraying its own principles. In the final analysis this undeclared war is no longer being waged to combat terrorism but rather to preserve a reputation of military invincibility. Finally, with every day that war is waged there and with every new security law passed here (in the western world) , that very freedom which is supposedly being defended is threatened and those refugees, who are the products of this military action and its consequences, are marginalized. On September 11, not only did thousands of people suffer an agonizing death, but even western civilization suffered a defeat. Those murdered in the attack will not be restored to life through the war against the Taliban.
Thursday, October 24, 2019
Are social networking sites good for our society Essay
Are social networking sites good for our society? In todays lifestyle it is admitted that Social Network Sites bring convenience, efficiency, fast, speed and width for adolescentsââ¬â¢ interpersonal relationship development. With various ongoing debates about why social networking may be bad for society, I have found it to be good for society. Social networking comes in many forms. It comes in the form of facebook, twitter, and even professional forums such as Linkedin. In such a fast-paced world, I find social networking to be an invaluable way of sharing ideas and interests that allow me to remain engaged. Although some may debate that social networking takes away from face to face and/or quality interactions, I have found it to be an invaluable tool in building community and networks. In fact, I believe it has given us a more effective way of communicating and engaging with one another especially in our fast-paced society. If I am on a work assignment one of my favorite tools to research is twitter. I find it to be a quick news feed and I usually learn about news first from there before learning it from the mainstream media such as television or radio. And of course facebook has been the staple for me as for many in helping us remain engaged and to keep abreast of graduations, weddings, births or other special events regarding our family and friends. Social media continues to make strides to make communication more accessible and easier for all of us. Just this week Mark Zuckerberg, founder of facebook, has announced that it is now offering a Graph Search function in order for the user to have the ability to run queries from oneââ¬â¢s network of friends. It allows users to run queries in order to find commonalities or other areas of interest within friend networks. Twitter has allowed many in suppressed
Wednesday, October 23, 2019
Personal statement for MSA Essay
If to use a single word describing myself, I would say, ââ¬Å"integrityââ¬â¢, which means a mixture of various qualities and views from different cultures and working experiences. My hometown, **, which was a harbor and now the booming coastal metropolis, brought me a grant view of how fast the speed of globalization is. Meanwhile, the dramatic economic growth of the city enlightened me for seeking and digging qualities that would match its future. As a result, I went to the other hemisphere of the world, United States, which was described as the most developed country, to ursue my Bachelorââ¬â¢s degree in business finance. Through the Joyful college life with diligent study in coursework and a verity of academic club taking, on a sunny day, Aug 28th, 2011, I obtained my Bachelorââ¬â¢s degree from Ohio State University with Magna Cum Laude. Moreover, my 3. 86 specialization GPA makes me a competitive individual among my schoolmates. Seeking a Job is not a fun thing, especially for a recent graduate and in the economic downturn, though, I still keep myself with the optimistic attitude and enough confidence in this whole process. Before my first official Job was offered, I gathered a erious of experiences from different positions: work as a part-time tax processor in a credited accounting firm, ***as a par-time bookkeeper in an entertainment company, Prime Social Group; and, even work as a sales associate in the subsidy of Gap, Inc, Old Navvy. These experiences, which supposed not decent enough for an honor graduate, told me how hard life could be, and made me more perseverant. After scatted out hundreds of my resume, and Joined tens something interview, I got my first official Job offer: financial analyst in ***, a healthcare financial consulting firm. My frank peers introduced me with some models and methodologies the company uses for a number of hospitals and nursing homes. Though some of the analysis sounds hard at the first glance, I still believe my personal qualities and skills, for example, I am a profound thinker that is knowledgeable of computer language Access SQL and Excel, could help me to conquer them. I penetrated myself in calculating and analyzing those Key Performance Indexes and valuation models. After I submitted my first report, though itââ¬â¢s not perfect, my supervisor, ***, comment this as,â⬠Itââ¬â¢s amazing or a recent graduate with little analysis experiences to create the model and fgure such a lot of crucial points outâ⬠. Besides, even the principle of the team,***, who used to be a professor in ***, appreciated my work ethic. Those words did stimulate me for a while. Experiences in ** extended my view of what consulting firms could help for clients. Consulting are not limit in investment finance taking care of stocks and bonds, IPO issuing, etc, more than that, lots of consulting firms are doing analysis on a corporate base, thus, much accounting knowledge involved. I also remember Andrew said to me wou d be essential tor getting a senior level position in financial consulting firm, and, a Master of Accounting would be a plus.
Tuesday, October 22, 2019
buy custom History of Solar Power in the United States essay
buy custom History of Solar Power in the United States essay Solar power is seen as one of the renewable energy that would reduce the United States, overdependence on oil as a source of energy. The technology of harnessing energy has grown over the years, with the use of photovoltaic in generating electricity and solar thermal for heating water. The latest technology, which is still under development, is the use of CSP systems to generate electricity. The United States is advancing in the use of this technology, and currently it is the leading in the generation of power using CSP technology. This paper will discuss the history of solar power in the United States, the technologies used in the production of power using CSP, and the benefits of using this technology. The paper will also explore the barriers to large-scale production of CSP power and possible intervention, and discuss the future for CSP in the United States. History of Solar Power in the United States In 1970s, there was there was a first environmental regulation in the United States, but first, there was a Clean Air Act, that researched on air pollution and emission standards for automobiles. During this time, the Council on Environmental Quality was set up by the NEPA to carry out a national environmental impact assessment for projects funded by the federal government (Cohen 103). These developments led to the creation of limits to emissions from industrial plants, fuels and electric utilities. In 1074, there was an embargo that shook the US, which depended more on oil for energy; this made the United States to think of alternative ways of meeting its energy demands. In 1977, the power behind CSP emerged with the development of the DoE, which was put in control of the federal energy agencies. More research was carried out by the DoE and other research groups on energy activities, which led to the development of policies and incentives for renewable energy resources such as CSP (Cohen 123). California led the nation in pushing for renewable energy resources, it used the DoE research and the attractive incentives provided by the PURPA to build SEGS; a 354 MW plant using a trough design was installed in Majove Desert (Cohen 147). This gave way to the construction of other CSP projects in California, and today, California has the first 80 MW plant, and this plant has remained the largest CSP in the United States. The CSP Technology CSP is a technique that is used for generating electricity using heat from the sun, this is a technology that is expanding quickly and is commercially viable. It requires a strong and direct solar radiation, which is used as a centralized source of power for many utilities, and produces more power in the late afternoon when the demand is high. The CSP technology uses mirrors to focus the sunlight on a heat transfer medium, the heat transfer medium is then heated to produce steam to power and engine or a generator that generates electricity (White 219). This technology has a potential of producing close to 300MW and supply approximately 100 megawatts; however, this value depends on the type CSP used. An effective CSP requires approximately 5.5 kWh/m2 of solar radiation per day; in California, the average solar radiation for an effective CSP ranges from 6.75-8.25 kWh/m2/ day, and its best performance is realized in flat and arid locations. The worlds best performance of CSP is realized in Australia, Sahara Desert and the U.S Southwest. The largest CSP in the United States was built in the 1980s and 1990s, in California desert, and today they are among the largest and most powerful solar generating systems around the globe. The United States has a number of plants, which have been operating since 1980s, and are located in the Southwest (Johnson 142). The United States is planning to install many more of CSP systems, and others are in construction states. Types of CSP Systems CSP has different technologies of power production, however, they all involve concentrating sunlight at a focal point located at a tube with a heat transfer material, the material is usually molten salt or synthetic oil. The synthetic material is usually pulled together and stored in a unit, and later used to produce steam to power conventional generators. All systems have arrays of mirrors for concentrating the sunlight. Parabolic Trough Parabolic troughs are long, curved mirror pivoted to focus sunlight on tubes with a heat transfer medium, which is generally water or oil, and the steam produced after heating the heat transfer medium is directed o move a power generating turbine. The parabolic troughs are installed in a way that allows they to track the suns path, and this increases the amount of heat reaching the heat transfer material (Price 261). The parabolic trough CSP system is the most developed system, and it has been in use in the United States ever since. The maximum capacity size for this system ranges from 150MW to 250MW, the power within this range can power close to 44,000 homes; however, today, the largest parabolic trough CSP plant is 80 MW. Solar Power Towers In this technology, flat mirrors are used to focus sunlight on a central receiver containing a heat transfer fluid, which is often molten salt that can keep thermal energy for a long time. Solar power towers, unlike parabolic dishes, they concentrate heat energy at higher temperature, and this makes to have a higher efficiency when it is compared to parabolic dish CSP systems. This system had 10 MW facility, which operated between 1996 and 1999 in California, this system had a storage tank could store electricity for 3 hours after a sunshine (Price 124). In 2009, a 20MW power tower was put online in Spain; this is largest power tower demonstration plant. Dish System In this system, mirrors are organized in a parabolic shape, which is like the shape of a satellite dish. The mirrors focus the heat on a central receiver that is mounted above the dish center. The receiver has a Stirling engine, which translates heat energy to mechanical power through cold fluid compression; the fluid can either be synthetic oil or water. The fluid is heated and allowed to expand through a turbine or a piston to produce mechanicl power, which is converted to electricity using an alternator or a generator (Price 169). This system can be utilized to produce electricity in large scale by arranging many dishes in a large array. The newest system that uses this technology has 31.5% energy conversion efficiency, which is the highest efficiency of CSP technology plants. However, this system has a smaller production capacity, which ranges from 0.003 to 0.025 MW. Recently, this system has been approved in California for construction. Linear Fresnel System This system is among the new CSP technologies. This system resembles the parabolic trough system; however, it utilizes multiple flat mirrors arranged in rows to focus sunlight on a set of tubes, which increases the heat of the fluid inside the tubes. When this system is compared to the systems that use curved mirrors, it is less expensive; the flat mirrors are less expensive to manufacture. However, this system is less efficient when it is compared to other CSP systems. Generation CSP systems generates power during daytime, this is the time when electricity demand is high. The heat transfer process used in generation ensures a stability time of 15 to 30 minutes; this time is enough for the system to endure a passing cloud. The systems are affected by extended cloud cover and night, when the sun is not shining; therefore, they need thermal storage and supplemental fuels (White 284). Most of CSP systems are supplemented with natural gas for them to provide baseload power all the time. Most plants that use natural gas use steam engines in power generation and since the CSP also use steam engines in power generation; the two systems are easily hybridized. CSP systems can also be made to meet baseload demand using thermal storage technology; this storage can help the CSP system to operate for 70 percent of 365 days without fuel backups (Price 302). The thermal storage technology is a great improvement of the CSP system, which can only run for 15-30 percent of 365 d ays when it is generating without storage. Production Capacity In 2008, the solar power produces only 0.09 percent of energy supplied in the United States; however, the production capacity is growing. Today, the United States have 429 MW installed CSP capacity, which makes it the leader in CSP generation, and the nation is still developing more generating plants, which totals to 7,000 MW. By 2020, the United States is sure of powering 2 million homes using CSP; this is from the projects that are under development. CSP Projects under Development in the United States California has 34 projects, which are planned to produce 9,183 MW; this is a potential capacity that includes 1600 MW to be produced from Stirling engine systems, 177 MW produced using Linear Fresnel System, 747 MW to be produced using power tower systems, and 8 projects with a potential of 4228 MW that are still in review process. The Mojave Desert has some CSP projects that are planned for construction; there is one project of 553 MW potentials that are still under construction since 2009. In 2007, there was a 25 year agreement between Pacific Gas and Electric and Solel to purchase power. In Florida, there is a hybrid of parabolic trough and gas systems with a potential capacity of 75 MW solar power. This power is projected to power Martin county and 11,000 homes will benefit from this project. Florida Power and Light and Lauren Engineers have an agreement of power purchase and this would benefit the nation. Costs of CSP The construction of a CSP plant takes approximately two years, it requires concrete, plastic, copper and steel. The cost of construction is about 80% of the plants total cost, this is higher when it is compared to a fossil fuel plant. However, unlike natural gas or coal power plants, CSP plants have zero fuel cost, the operational costs are 30 percent less when they are compared to those of gas and natural gas plants (U.S. Department of Energy 412). An installed CSP plant generates power for decades; in 1984, the first CSP plant was installed and this plant still generates power efficiently. These power plants might be expensive to construct but the benefits are huge and like the CSP plants, these benefits last for decades. The Benefits of CSP Economic Benefits The United States average price of electricity generated from Coal and natural gas costs 6 and 9 cents/kWh respectively, and the cost of CSP electricity is 14-16 cents/ kWh. This shows that CSP is expensive when it is compared to Coal and natural gas, however, during peak demand, the CSP becomes more cost effective; this means that those who use the CSP generated power save a lot during this time, remember that the peak demand is during afternoon, and this is when generating using CSP is high (Sioshansi and Denholm 176). According to research, as the industry mature, the cost of building CSP system would come down, and the prices of power generated using these system would reduce to about 5 cents/ kWh. The economic benefits of producing power using the CSP system might not be realized soon because the high cost of product of construction, however, if a nation continues to construct such plants, it would realize the benefits in a major way (Sioshansi and Denholm 179). For instance, the United States requires much power and its needs continues to increase as the population increases, as they are installing the CSP systems, their future costs of power generating are reducing because the nation will spend less of coal and natural gas power production (Kolb et al 197). The savings from the use of CSP would be used to fund other important developmental projects. The development of CSP systems has created employment opportunities in the United States. The construction of the systems requires different expertise such as the engineers, geologists and the unskilled labor, and after it has been installed it requires the administration to facilitate its operations, therefore, the Americans with the skills in the respective field are employed in the CSP plant (Sioshansi and Denholm 181). This is bound to increase with the other projects that have been planned for construction in California as well as other parts of the country that have CSP potential. Most of the CSP projects in the United States are constructed in areas that have less agricultural potential, and initially such areas such as Mojave Desert had little economic contribution to the nation, but now with the CSP projects, this region has a large economic contribution to the nation (Kolb et al 238). The energy produced from these projects has help residents around Mojave deserts and other citizen who use energy from this region to power their businesses; this has helped them extend their operation time, which has improved their earnings. The residents have also managed to put up businesses that use machines that depend on electricity for their operation. The companies producing CSP energy has managed to sign power purchase agreements such as the Florida Power and Light and Lauren Engineers, which help the company to sell its extra power and gain from the funds received. Environmental Benefits The CSP projects produce energy with no harmful gas emissions, this is as opposed to natural and coal based projects which emit green houses gases. The United States which consumes much power, and has had many problems with complying with the Kyoto protocol, has managed to produce more energy adding extra green house emissions to the environment. The nation is investing more in CSP projects, and if the country continues to produce more of CPS, it will reduce its dependence on coal and gas producing plants, and thus reducing the CO2 and other green houses to the environment. The construction of the projects does not require heavy digging of the ground, and this does not destruct the land, this is as opposed to coal and gas power production, which require heavy digging and installation of heavy machines that destructs the land. The Barriers to large-Scale Deployment of CSP Production The United States of America plans to produce power using CSP systems, but the projects are later converted to PV projects; recently, more than 2,500 MW that was planned for CSP projects was reconverted to PV projects (Kolb et al 292). This is because the CSP projects are costly to construct when they are compared to PV projects as well as the gas and coal power projects, and most countries such as the United States are shying away from deploying the CSP project for large-scale production. According to research, CSP projects can be made more efficient and produce more reliable power through dispatchability and storage, but this approach does not produce a more competitive power when it is compared to the oil-parabolic CSP hybrid systems (Johnson 216). Therefore, the nation is still afraid of investing in a technology that has high cost of construction, and the electricity produced is not competitive enough. The problem of high cost f electricity from CSP technology can be solved by i nvesting in research to find better ways to come up with the technology to reduce the production costs using gas or coal to supplement CSP systems. More research on advanced CSP concepts such as molten salts and solar trough, direct steam and Fresnel, and molten salts and solar tower; this approaches have a potential of reducing the CSP cost of power production (Johnson 231). If a more efficient technology is used and the cost of producing electricity lowered it will result in the development of the CSP technology The future prospects of CSP in the United States The United States has a potential of CSP production with the planned CSP projects and more in places that has a potential, and with the ongoing research to reduce the cost of energy produced using CSP systems, as well as its efficiency, CSP is expected to be a key player in the nations future. Solar energy is the biggest resource not only in America, but around the globe and if efforts are not made to commercialize it, then regions with the potential might not realize its importance (Johnson 163). The cost of construction of CSP system is very high; therefore, many private investors shy away from investing in such projects. The government of the United States should find a way to cut the construction costs to easy the investors investment costs (Hamilton 215). This can be done by giving incentives to those wishing to invest in CSP production; building infrastructure in areas of potential solar power production and reducing or eliminating import duties on CSP construction materials. T his would help the CSP industries to produce power that is competitive in the market by offering lower prices. The government should also come up with a tariff that will increase the consumption of power produced, for instance, for those who consume CSP power during the time when the CSP plants are generating more power are charged less; this will increase the market for CSP (Hamilton 217). The increase in market will attract many investors to invest in CSP, and more regions with energy solar resources will be exploited giving the nation more clean and cheap energy. The United States should also invest more in research on efficient ways of CSP production and solar energy exploration; this will ensure that the solar resource is fully exploited in the United States. The future for solar energy in the United States is promising, but any further achievements will depend on the governments efforts to make it exploit and commercialize the resource. Conclusion CSP technology is a technology that utilizes a free energy resource, which is the sun, this technology has been proved to be viable in United States; there are several projects that are already generating and supplying energy. There are several projects, which are still under construction, others planned for construction, and there are some areas that are still unexploited; this shows its future potential in the United States. However, the low efficiency and cost of constructing the plants hinders its exploitation and production in large-scale. The hindrances can only be eliminated by doing more research on efficient and less costly techniques for CSP production. This technology should not be quickly assumed because of it costs, however, the government of the United States should provide incentives to investors in this industry to encourage them to exploit the CSP. Buy custom History of Solar Power in the United States essay
Monday, October 21, 2019
War in iraq essays
War in iraq essays The war in Iraq has many people in America and around the world questioning Americas intentions. Some might speculate that America went into this war to obtain oil. Others might see America as power hungry by wanting to overthrow Saddam Hussein. There are many different speculations about what exactly caused America to go to war. One reason I believe we were so determined to go to war with Iraq is because of September 11th. I think that George Bush felt the pressure of the American people to seek revenge on somebody. It turns out that that somebody turned out to be the country of Iraq. I think George Bush basically came into the presidency with the goal of overthrowing Saddam Hussein, something his father failed to do, and when September 11th happened it made Bush that much more determined. I think that the American people knew that Saddam needed to be dealt with. The problem is the way Bush tried to accomplish this. I feel that there could have been more subtle tactics used. For instance why couldnt one of Americas Special Forces try to sneak into shooting range of Saddam to assassinate him? I think that approach seems a little more logical, rather than send thousands of our troops into harms way. I also think that the American people feel like they have been lied to by yet another president. One of the main reasons that America went to war is because we were told that Iraq had weapons of mass destruction. After more than a year of fighting has there been any weapons of mass destruction found? NO. I think that many Americans were absolutely one-hundred percent for the war in the beginning. Who in there right mind wouldnt want to go to war if they were told that Iraq had weapons of mass destruction and not to mention had a part in the worst catastrophe in American history. Now Americans are starting to see that Bush was very misleading to the people and his job approval rating is s...
Subscribe to:
Posts (Atom)