Solar Technology in Gemasolar Technology

Solar Technology in Gemasolar Technology The world today requires energy for quite a number of things. Without energy the world will come to a standstill. For many years, the demand for power has been fulfilled through the use of fossil fuels such as natural gas, coal and products derived from oil.Advertising We will write a custom report sample on Solar Technology in Gemasolar Technology specifically for you for only $16.05 $11/page Learn More Kulichenko and Jens claim that there was need to find new sources of energy after a while because of; high cost of traditional sources, difficulty of guaranteeing supply of traditional sources, global economic growth that has brought about a growing demand for more energy and increased global warming (52). Solar power is inexhaustible, plentiful and clean energy. Solar technology is used to convert solar radiation to other forms of useful power. Solar thermal power plants are mainly located in extremely dry and uncultivated areas not used for agricultural ac tivities. Such areas provide the ideal or appropriate conditions for solar energy radiation absorption. This report is about the Gemasolar energy plant located in Fuentes de Andalucà ­a in Seville province of Spain. Gemasolar energy plant is a concentrated solar power plant which uses a central receiver technology with molten heat storage system. The plant started working mid 2011.Technical feasibility of Central receiver technology was first proved during the 1980s by operation of six research power plants ranging from one to five MWe capacities and by one to ten MWe. A demonstration plant with a steam receiver was connected to the southern California grid. The Spain Central tower receiver power plant was the pioneer commercial scale power plant globally that used this kind of technology. (Jayasimha 10) Without a doubt, solar power towers are to be the backbone of the entire power generation scheme.Advertising Looking for report on environmental studies? Let's see if we ca n help you! Get your first paper with 15% OFF Learn More The plant has the ability to take in sun rays and provide energy at night and also during cloudy days (Rirdan 102). Central receiver towers are large scale power plants.It is made up of two axis tracking mirrors or heliostats which reflect solar radiation at the very top of the tower where the receiver is placed. The main goal of the Gemasolar project is to demonstrate the technical and economical viability of molten salt solar thermal power technologies to deliver clean cost competitive bulk electricity (Negewo 93). The plant is owned by Torresol energy investments. Originally it was known as Solar Tres before the name was changed to Gemasolar. Torresol energy investment is owned 40% by Masdar, a company based in Abu Dhabi. 60% is owned by Sener from Spain (Hanna 45). The Gemasolar power plant is made up of 185 hectares of solar field. The high tower receiver is 140 meters high. It also has 2,650 heliostats ea ch having 120 square meters distributed in concentric rings around the tower (Negewo 92). Sodium and potassium nitrates make up the molten salt which is usually stored in tanks made of steel. The biggest tank at the plant has a diameter of 23 meters and a height of 14 meters. The molten salt is used as heat transfer fluid and energy storage medium. It is easy to manage the solar power due to the storage capacity of the steel tanks. It is supplied on demand. Connected to the tower at ground level are the hot and cold storage tanks. The tanks can store salts which provide energy for up to 15 hours without the sun. Molten salts in the cold tanks are stored at 290 °c and 565 °c in the hot storage tank (â€Å"Cleantechchnica†:Spain Gemasolar). The implementation of the molten salt heat storage system allows creation and appearing of electricity when there is any solar radiation.Advertising We will write a custom report sample on Solar Technology in Gemasolar Technology specifically for you for only $16.05 $11/page Learn More How It Works Solar radiation first falls on mirrors known as heliostats. It is then reflected on to the receiver situated at the top of a supporting tower. Solar radiation is concentrated by the heliostats at 1000:1 ratio. This is controlled by a network of communication with 26 fiber optic rings present in it. The orientation of the heliostats is automatically turned towards the sun by geared motors so that they reflect beam radiation on the receiver all day. A fluid flowing through the receiver absorbs the concentrated radiation and transports the heat to the ground level where it is used to operate a thermodynamic cycle. The receiver is capable of absorbing 95% of the radiation transmitted to the molten salts in the central receiver (You tube: The World’s first Base load). Cold salt is pumped up to the top of the tower at the central receiver where it is heated up. The liquid salt is brought back t o the hot storage tanks being kept there at the temperature of 565 °c. After leaving the storage tank, the heated salt is moved to the heat exchanger chamber via steam pipes and steam is formed as a result of condensation. By means of this steam the turbines are turned; they generate electricity. According to Rirdan, any extra heat generated is kept in the molten storage tank and is used to produce electricity when the sun’s heat and radiation is absent. Power generated is transferred to a substation located in Villanueva Del Rey, Andalucà ­a, and further transmitted to the National grid system (102). Cost of the project Estimated cost of project was â‚ ¬171 million. It was financed by several financial institutions including European Investment Bank, Banco popular and Banesto ICO. Engineering, procurement and construction were done by Sense Company. This was inclusive of the development of a molten salt receiver and the manufacturing of heliostats.Advertising Looking for report on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More A company called SGS was tasked with provision of assistance in the civil works for example construction progress audit, power limit substantiation, commissioning and initial operation of the power plant. Outukumpu was charged with the task of constructing hot and cold storage tanks. The Nord block gear motors were manufactured by Nord drive systems. Working together, Schneider electronics and Hirscham electronics were the companies that built the communication network. It took 29 months to construct the power plant. Energy output Electric power is up to 19.9 MW. Net electric production expected per year is 110Ghw.The electricity generated of approximately 110 MWe per year is the highest electrical generation in the world for solar plants. Advantages of the Gemasolar Technology These are the reasons why the Central receiver tower technology is preferred to other renewable energy production methods. It has a prolonged operating time without solar radiation. This means that it can wor k through the night or on cloudy days using energy from the stored heated salt. Energy output from this power plant is higher than that of other technologies in a facility with the same power. It has guaranteed electrical production for 6500 hours per year which is approximately two to three times higher than that of renewable energies. It is more scalable to any application both large and small thus it has significance to utilities. It is more consistent energy supply with centralized and dispatch able generation model (Negewo 101). Its potential in MENA significantly exceeds any foreseeable regional demand even when quite onerous site conditions are required. It has significant potential for future development thereby reducing cost. It works well with current large scale desalination technologies (Negewo 101).Other benefits of the central receiver power plant include: It provides clean and safe power to approximately 25,000 homes. There is less carbon dioxide emission by more than 30,000 tonnes a year (Enviromission Solar Tower 13). In addition, the turbines do not have to be shut down quite often and hence the plant has a longer lifespan. The plants electrical generation can also be controlled to suit the demand for electricity. Breaks or leakages are greatly reduced since there are no tubes or heat exchange fluids that spread out across the solar field and hence leads to low operational and maintenance costs (Rapier). Conclusion Solar is improving its cost and performance by 20 % each year and is expected to continue to do so for the foreseeable future (Seba 17).Concentrating solar thermal electricity is rapidly expanding in Spain and globally. In the USA, a first generation solar power thermal station of 354 MWe has been operating for more than 20 years. As of mid 2011 about, 1100MWe of CST was installed globally. In principle, given sufficient land, 24 hours storage is feasible and solar thermal power can be operated either as base load, intermediate loa d or peak load depending on amount of storage installed and electricity prices. Enviromission Solar Tower. Web. Hanna, Nick. The Green Investing Handbook: .A Guide to Profiting from the Sustainability Revolution. London, UK. Harriman house limited, 2010. Print. Jayasimha, Balakrishna. 2006. Application of Scheffler Reflectors for process industry: International Solar Cooker Conference, Granada, Spain. Web. Kulichenko, Natalia, and Wirth Jens. Concentrating Solar Power in Developing Countries. Washington, DC., World Bank, 2012. Print. Negewo, Bekele. Renewable Energy Desalination: An Emerging Solution to Close the Water Gap. New York. World Bank publications, 2012. Print. Rapier, Robert. Power Plays: Energy Options in the Age of Peak Oil. New York. Apress, 2012. Print. Rirdan, Daniel. The Blue Print: Averting Global Collapse.Louisville. Corinno Press, 2012. Print. Seba, Tony. Solar Trillions: 7 Market and Investment Opportunities in the Emerging Clean-Energy Economies. Madrid. IMF P ublications, 2010. Print. Spain’s Gemasolar 24/7 Power Plant (VIDEO) 2011. Web. The Worlds First Baseload (24/7) Solar Power Plant. Web.

What is man thinking and what is a bookworm essays

What is man thinking and what is a bookworm essays Man thinking in my opinion out weighs a bookworm at any given time. The positives of man thinking are many you also think, as well communicate with others, man thinking allows male or female to explore all options that he or she has to accomplish in life. A bookworm for those not aware is people who reads all the time or may I say reads entirely too much. No, I apologize you could never read too much, however if you believe everything that you read and never experience what you read you could have symptoms of a bookworm. A bookworm is very dumb in my opinion, because they are totally tunnel vision they would not be able to interact with the others on the outside. "One of Auguste Rodins most famous sculptures is The Thinker Statue, apiece originally conceived to be part of another work. The Thinker was part of a commission by the Museum of Decorative Arts in Paris to sculpt a monumental door based on The Divine Comedy of Dante. Each of the statues in the piece represented one of the main characters in the epic poem. Initially named the The Poet, The Thinker statue was intended to represent Dante himself at the top of the door reflecting on the scene below. However, we can speculate that Rodin thought of the figure in broader, more universal terms. The Thinker is depicted as a man in sober meditation battling with a powerful internal struggle. The unique pose with hand to the chin, right elbow to the left knee, and crouching position allows the statue to survey the work with a contemplative feel." ...

Education Vocabulary for English Learners

Education Vocabulary for English Learners Learn English vocabulary related to education to use when discussing various subjects at university. Words are categorized into different sections. Youll find example sentences for each word to help provide context for learning.   Subjects Archaeology - Archaeology explores humanities past civilizations.Art - Art can refer to painting or to to arts in general such as music, dancing, etc.Business studies - Many students choose business studies in these times of globalization.Dance - Dance is an elegant art form which uses the body as a brush.Drama - Good drama can move you to tears, as well as hold you in suspense.Economics - The study of economics might be useful for a business degree.Geography - If you study geography, youll know which country is located on any continent.Geology - Id love to know more about geology. Ive always wondered about rocks.history - Some believe that history is much older than we are led to believe.home economics - Home economics will teach you how to run an efficient home on a budget.Foreign (modern) languages - Its important to learn at least one foreign language in your life.Math - Ive always found simple math easy.Mathematics - The study of higher mathematics is required for a computer pro gramming degree. Music - Understanding the biography of great composers is an important part of studying music.Physical education - Children up to the age 16 should be encouraged to participate in physical education classes.Psychology - The study of psychology will help you understand how the mind words.Religious education - Religious education will teach you about the wide variety of religious experiences.Science - Science is an important part of a well-rounded education.Biology - Biology will help you learn how human beings are put together.Chemistry - Chemistry will help you understand how earths elements affect each other.Botany - The study of botany leads to an understanding of different types of plants.Physics - Physics explains how the real world functions.Sociology - If you are interested in understanding different cultures, take a sociology class.Technology - Technology is found in almost every classroom of a typical school. Exams Cheat- Dont ever cheat on a test. Its not worth it!Examine - Its important to examine all the evidence when drawing a conclusion.Examiner - The examiner makes sure nobody at the test cheats.Examination - The examination should last three hours.Fail - Im afraid I might fail the test!Get through - Peter got through to the fourth grade.Pass - Dont worry. Im sure youll pass the test.Take / sit an exam - I had to sit a long exam last week.Retake - Some professors allow students to retake tests if theyve done poorly.Revise for - Its a good idea to revise for any test you take by reviewing your notes.Study for - I need to study for a quiz tomorrow morning.Test - What time is your mathematics test today? Qualifications Certificate - He earned a certificate in computer maintenance.Degree - I have a degree from the Eastman School of Music.BA - (Bachelor of Arts)  She earned her BA from Reed College in Portland, Oregon.MA - (Master of Arts) Peter wants to take an MA in business.B.Sc. - (Bachelor of Science) Jennifer is working on a B.Sc. with a major in biology.M.Sc. - (Bachelor of Science) If you earn a M.Sc. from Stanford, you wont need to worry about getting a job.Ph.D. - (Doctorate Degree) Some people take years to finish a Ph.D.Diploma - You can earn a diploma to add to your qualifications.   People Dean - Alan is the dean of faculty at that school.Graduate - Hes a graduate of the local university.Head-teacher - You should speak to the head teacher.Infant - Some parents put their infants in day-care.Lecturer - The lecturer in law was very boring today.Pupil - Good pupils dont cheat on tests.Student - A good student takes notes during a lecture.Teacher - The teacher will answer any questions you have.Instructor - Hes an instructor of computer science at the high school.Undergraduate - The undergraduate had a great time at college.

Answer to case Study Example | Topics and Well Written Essays - 750 words

Answer to - Case Study Example The Congress government wanted to impose regulatory measures on the derivative trading deals in order to avoid such losses in future. Unlike trading in New York Stock Exchange, most of the derivative transactions took place between private parties in U.S. The government wanted to make such trading through ‘clearinghouses’, where public intermediaries’ would inspect the dealings. According to the government, it was also necessary to implement the Dodd Frank Act that would oppose the banks from undergoing excessive risks in big dealings. At this juncture the commercial banks claimed for less government intervention. Jamie Dimon the chief of the company commented that, three high ranking executives left the company and this was the reason for the loss. Stakeholder Theory Approach The JPMorgan loss affected both the market and the non market stakeholders. Market Stakeholders Customers The customers are the depositors who keep their assets in the bank. The loss of JPMo rgan would make the customers feel unsafe to deposit their wealth in the bank. They would fear that the bank might collapse in such adverse crisis and thereby might withdraw their deposits. Employees The employees of the bank would lose confidence from the organization and might decide to leave their jobs and join elsewhere. They would do this in fear of losing their jobs in future. Suppliers The suppliers would also turn out to be non supportive to the bank. They would cease the major derivative dealings in fear that in such crisis the bank might not be able to pay back the returns to them. Non-Market Stakeholders Government The government would need to offer an implicit bail out to finance the loss making projects of the firm. The state would offer an implicit bail out only if the bank accepts to operate under its regulations. Communities The communities would expect the bank to recover its loss. This is because JPMorgan initiates certain social responsible schemes for the communi ties. They would encourage the employees, suppliers and customers not to loose confidence from the bank. Business Supporting Groups The business support groups would also support the views of the company chief. They would claim for less state intervention in the matters of the private banking. They would claim this because they are in favour of banking led business expansions. The Stakeholders Map High Stakeholders Salience Stakeholders Sailence Low Against Position of the issue For (Source: Authors Creation) As shown in the above map, the communities and business support group would take this loss to be a normal incident. They would comment that the loss has actually taken place because three important officials left JPMorgan bank at this juncture. Ina Drew was one of these three officials, who used to look into the risk in the firm’s derivative deals. On the other hand customers, government, suppliers and the employees would move against the views of the issue. They would l ose confidence from the bank in due course of this loss. However, since U.S. is a republican country the salience or power of the customers would be utmost influence the decisions of the banks. The government and the communities would have the minimum powers. Sample Stake holder Map Recommendations The power of the customers and suppliers are high in matters of private commercial bank. The scale of operations of a commercial bank depends on the trust and

Health and Safety in the Construction Industry Term Paper

Health and Safety in the Construction Industry - Term Paper Example The National Audit Office report established, among other things, that the accident rate in the United Kingdom was one of the lowest in the European Union.   In 2002-2003, 226 workers were fatally injured, and about 70% of these were construction workers; about 4000 construction workers suffered minor injuries, and health records indicated that musculoskeletal diseases were prevalent among the workers.   These numbers are very alarming.   They imply that there are not enough safety precautions in place to prevent injuries and to ensure the safety of these construction workers.   The statement of the NAO in their report stressed that those creating the health risks are also legally responsible for controlling and managing such risk.   The report goes on to say that everybody has to safeguard his own safety and the safety of those affected by their work.   These statements imply that those who create the risk and those who are exposed to the risk bear the responsibility of keeping each other safe.   The report was able to establish that many stakeholders in the construction industry are not aware of their responsibilities in the industry.   And this lack of knowledge and lack of awareness is impacting greatly on the health and safety performance of stakeholders involved.   The report cites that some public sector agencies are sometimes too preoccupied and are more concerned with getting the lowest possible price for various construction projects and that they ignore the whole life costs and the health and safety of the workers who will later be invol ved in the project.   Many designers also are not aware of their responsibilities, and some of them actually think that they do not have any duties or responsibilities towards their employees.   These beliefs are very dangerous in the construction industry.   They place construction workers in a position that exposes them to serious injuries and possibly unfortunate fatalities.   The NAO report serves as a warning, an eye-opener for all the stakeholders in the construction industry. There are various cases of violations of the Health and Safety Act as far as the construction industry is concerned.  

Audit Report Research Paper Example | Topics and Well Written Essays - 1000 words

Audit Report - Research Paper Example Table 4 Year 2001 2002 2003 2004 2005 2006 Jewry Inn 2.1 2.4 3.91 4.68 5.75 6.3 5. The turnover index relatives of the three hotels for a base year of 2006, computed using Excel (rounded to whole numbers) are given below: Table 5 Year 2001 2002 2003 2004 2005 2006 Moorchester 66 73 83 102 99 100 The Frilton 51 56 67 82 90 100 Jewry Inn (index) 33 38 62 74 91 100 6. (a) Absolute and relative changes in the three turnover indices between 2001 and 2006 (round to whole numbers) are shown below. Table 6 - Absolute Growth in Turnover (Base year 2006) Hotel / Period 2001 - 02 2002 - 03 2003 - 04 2004 - 05 2005 - 06 Moorchester 11 10 19 -3 01 The Frilton 10 11 15 8 10 Jewry Inn 15 24 12 17 09 Table 7 - Relative Growth in Turnover (Base year 2006) Hotel / Period 2001 - 02 2002 - 03 2003 - 04 2004 - 05 2005 - 06 Moorchester 11 14 23 - 03 01 The Frilton 10 20 22 10 11 Jewry Inn 15 63 19 23 10 (b) Interpretation of results: (i) Moorchester: It had almost equal absolute growth during 2001 - 02 and 2002 - 03 but had a sudden rise during 2003 - 04. It had a steep fall during 2004 - 05. Then it had an insignificant growth during 2005 - 06. So far as relative growth is concerned, it had uniform rise in growth during three consecutive years 2001 - 02, 2002 - 03 and 2003 - 04. It had a major setback during 2004 - 05 and an insignificant growth during 2005 - 06. (ii) The Frilton: Its absolute growth during 2001 - 02 and 2002 - 03 were almost equal. Then it had an appreciable rise during 2003 - 04 but had much lower growth during 2004 - 05. During 2005 - 06 it had marginal growth. In terms of relative growth, it had an upward trend during 2001 - 02, 2002 - 03 and 2003 - 04. But the relative... (i) Moorchester: It had almost equal absolute growth during 2001 - 02 and 2002 - 03 but had a sudden rise during 2003 - 04. It had a steep fall during 2004 - 05. Then it had an insignificant growth during 2005 - 06. So far as relative growth is concerned, it had uniform rise in growth during three consecutive years 2001 - 02, 2002 - 03 and 2003 - 04. It had a major setback during 2004 - 05 and an insignificant growth during 2005 - 06. (ii) The Frilton: Its absolute growth during 2001 - 02 and 2002 - 03 were almost equal. Then it had an appreciable rise during 2003 - 04 but had much lower growth during 2004 - 05. During 2005 - 06 it had marginal growth. In terms of relative growth, it had an upward trend during 2001 - 02, 2002 - 03 and 2003 - 04. But the relative growth was reduced to half during 2004 - 05. However it maintained almost equal growth during 2005 - 06. (iii) Jewry Inn: The picture taking 2006 as base year is altogether different than that with 2001 as base year. In absolute growth it had up and down in alternate years during entire period of evaluation 2001 - 02 to 2005 - 06. The Laspeyre Index indicates that had the number of employees remained the same there would h

Thucydides, the peloponnesian war, the Melian Dialogue ( Book 5, Essay

Thucydides, the peloponnesian war, the Melian Dialogue ( Book 5, chapter 17) - Essay Example The Melians was a colony of many islands, but Athens wouldn’t submit to them. They remained neutral and didn’t s tussle with the people. Athenians used violence to evict the Melians from their territory and this made the Melians change their attitude and became hostile. In the Melian dialogue, Athenians demanded the Melians to give up on their city and compensate them for the destruction caused in the city. In response, the Melians claimed that they would remain neutral and not become enemies so instead they offered friendship. The Athenians argued that they would look weak and the people would undermine their strength, if they accepted the Melians to be neutral and independent (Crawley 2). The Melians countered that it would be a shame and an act of cowardice if they surrendered without a fight. Thucydides stated that, if such an action is taken to keep your empire and your people will not be free and will subdued to slavery, then the people who are free will be considered cowards and weak if they fail to face everything. The Athenians responded and stated that the debate wasn’t about honor, but of self-preservation. The Melians stated that the Athenians were strong and they could easily win. In response, the Athenians stated that the strong were hopeful and the weak Melians were hopeless and outnumbered. The Melians responded that they had great help from their gods, but Thucydides stated that trust in god would give prosperity for those who stood for the right and not wrong. The Athenians response to the Melians was that gods and man value strength over integrity and the strong can make it but the weak suffer (Crawley 3-4). The Melians argued that the Spartans would come and aid them in their defense. The Athenians responded to this by stating that the Spartans had little to their advantage and more to lose by aiding the Melians. The Athenians concluded that there was nothing wrong in getting a strong enemy, but this statement didn’t change