Francis Turbine Conclusion

FFRANCIS TURBINE QUESTIONS & DISCUSSIONS 7. 1 QUESTIONS 1. Plot a graph of: a. Turbine velocity versus flow rate. b. Turbine velocity versus output torque. c. Turbine velocity versus hydraulic power. d. Turbine velocity versus mechanical power. e. Turbine velocity versus efficiency. 2. Give your comment(s) from the graph obtained. ? Based on the graph Turbine velocity versus flow rate, it is shown that line for both z=50% and 100%is increasing when turbine velocity increase, flow rate also increasing. From the graph Turbin velocity versus output torque, it is shown that output torque for the both line will increase slightly when turbine velocity is increase ? In the Turbin velocity versus hydraulic power graph,the line shows water speed is increasing due to increasing of hydraulic power. Overall, when turbine velocity become large then it will increase hydraulic power. ? Graph of Turbin velocity versus mechanical power shows mechanical power increase when turbine velocity is going do wn. ? For the graph of Turbin velocity versus efficiency, it shows its efficiency decrease when turbine elocity increase. 3. State five (5) safety factors that have been taken in the experiment. There is five safety factors that should be taken while doing the experiment in laboratory: ? Make sure our hands are dry when switch on the switch of the machine ? Make sure the turbine is not stopped immediately as it tends to overspeed with emergency stops. ? Make sure the equipment function well before experiment get started. ? Must follow procedure going on the experiment so accident could be avoid during experiment. ? Make sure handling well the equipments during experiment and void silly behavior.DISCUSSIONS Francis turbine is a type of water turbine that was developed by James B. Francis. It is an inward flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today. They operate in a head range of ten meters to sev eral hundred meters and are primarily used for electrical power production. In real life, the basic operating system of the Francis Turbine is applied to generate hydroelectric power. To design the most efficiency hydroelectric generator, several factors -head, low rate, velocity, power and efficiency of the area should be taking into account. Hman is the differences of pressure head position which measured the pressure and the turbine shaft bar. It is a kinetic parameter which cause by water velocity. The height differences between the pressure gauging point position and the point of water level at the outflow of reservoir will influence the power of outlet. Lower river flows because of drought, climate change or upstream dams and diversions will reduce the amount of live storage in a reservoir therefore reducing the amount of water that can be used for ydroelectricity. The result of diminished river flow can be power shortages in areas that depend heavily on hydroelectric power. T he turbine overall efficiency, is calculated as the ratio of power at outlet point compared to the generated power. It is because in natural the head and velocity of water source is not possible remaining constant. It will influence capacity factor lower than 100%. During the experiment, there might be some error that affects the result of this experiment. The errors that might occur are parallax error while recording the readings or inaccurate time counting.Besides, before starting the experiment, the water lever of the tank storage should be checked for remaining at acceptable water lever. CONCLUSION From the experiment that was done, we can conclude that the turbine velocity is increase with the flow rate, output torque, and hydraulic power but decrease in efficiency and mechanical power. REFERENCES †¦ Ab Aziz Abdul Latiff, Zawawi Daud, Noor Azila Ahmad, Hartini Kasmin, Wan Afnizan Wan Mohamed,†¦ Zarina Md Ali. (2007). Hidraulik. Penerbit UTHM APPENDIX †¦ Original Data Sheet

Evaluate the roles of named players Essay

Managing future energy needs is certainly a global challenge that requires the cooperation of many named players both on a small and large scale. It has been estimated that global demand for primary energy is set to grow 55% by 2030 and that $22 trillion of new investment is need to meet future energy forecasts. The main player in providing future energy security can be argued to be OPEC as they control the production of over 2/3’s of the world’s supply of oil, therefore leading them be price makers in the industry. OPEC is considered to be the most important player in global energy provision, it currently consists of 12 members and was created in 1960 mainly to protect the interests of member countries and to stabilise oil prices for a regular supply to oil consuming countries. However, OPEC’s obligations have been controversial as they have been accused of holding back on production of oil and gas in order to drive up prices, therefore using the market mechanism of demand and supply to increase profits for member states. Currently it has been proven that collectively, OPEC has stored 900,000 million barrels of crude oil, they own 78% of global resources and have a combined market share of 45% for oil and 18% for gas. This inherently makes them the largest producer of fossil fuels in the world meaning they will have a large if not absolute say in future energy provision and energy security. The responsibility of oil distribution will then fall on OPEC when supply of oil runs low leading to a bidding system for allocation of oil to where demand and price is highest. Another large player involved in providing energy security for the future is multinational oil companies; they are involved in the exploration and extraction of oil as well as transporting and refining the oil to consumers meaning they, as well as OPEC control the prices directly to consumers. Most of the top 20 oil companies in 2005 were state owned with companies such as Saudi Aramco in Saudi Arabia and PDV in Venezuela, this could be beneficial for domestic industry as they may charge less, stimulating the economy with lower production costs. However, many of the largest oil companies are relatively free of direct political influence and are therefore driven by the market mechanism leading to higher prices, above production costs. An example of a petro chemical company that has a direct impact on us in the UK is Gazprom in Russia. It solely controls one third of the world’s gas reserves and accounts for more than 92% of Russia’s gas production, but more importantly it provides 25% of the EU’s natural gas as we are consistently becoming net importers. The security of the energy provision is open to risk as Europe’s fear is that Russia will be able to name its price for gas because Europe is predominately dependent on its supply. In addition, the reliability is further doubted since Russia temporarily shut off gas supply to Ukraine in 2006 and therefore the whole of Europe. Fossil fuels are of course a finite resource meaning they will one day deplete to such an extent that it will not be cost effective to extract and refine to sell. This insinuates that it is the combined role of governments and oil producing companies to innovate and invest in new technology to sustain increasing energy demands. International Governments is the last and one of the main players in providing future energy security. Governments have the option of allowing oil companies to further exploit their own environment in order to increase oil production such as the case with the province of Alberto. It is estimated up to 2. 5 trillion barrels of are held within the sedimentary oil-shale – more so than in Saudi Arabia. This may relieve pressure for rising energy demand in the US as Canada does in fact have a surplus of primary energy. It will also relieve the US from its dominant reliance on the unreliable Saudi Arabian oil reserves with growing political challenges and the threat of terrorism and piracy. However, environmentalists see the exploitation of oil-shale are sands as a disaster in the making, not only does it already have detrimental environmental scars but with current technology, huge amounts of energy are needed in heating the sands to extract the oil (every 3 barrels of oil produced requires 1 barrel to be burnt). Conversely, Governments may opt to incentives conservation of energy through fuel duties or green taxes and emission trading as it leads to industries investing in cleaner technology. In addition, investment in greener fuels such as renewable and nuclear energy is a way for governments to secure energy provision in the future as it can be sustainable and everlasting. In conclusion, each player has a unique role in providing future energy security either with price stability with OPEC, investment into greener technology with oil companies and correct management and legislation from governments to both the exploitation of their environment and their fiscal system in incentive taxation. All in all it depends on the magnitude of integration of all these ideas brought forward that will secure actual energy provision in the future and allow for a sustained and secure increase in consumption of energy.

What characterised the Anglo-American Special Relationship during the Essay

What characterised the Anglo-American Special Relationship during the Cold War - Essay Example ps were cemented by the establishment of close ties between subsequent leaders of these countries as they sought to work together in national goals of influencing global economic and political systems. The cold war era is one of the period were the United States and Britain cooperated in a number of areas as both nations sought to secure their interests against resilient Soviet Union. The Anglo-American cooperation during cold was set had the objective of establishing close coordination in areas such economic performance, sharing of technological innovations and enhancing security through cooperation in defence and military movements in strategic areas. The strategies for achieving these goals were pegged at achievement of mutual benefit although there were instances where the two friendly nations were unable to share a common perspective on an issue as seen in the British attempt to ouster Nasser from Egypt presidency, which the United States did not support.1 However, the Anglo-American special relationship worked for the benefit of the countries especially when facing a perceived common threat. Therefore, given the mutual perception of Russia held by both Britain and the United States, it was only practical that the relationship would establish more areas that they agreed than where the countries did have a consensus on the best approach to handle a given domestic or international situation. Many nations that emerged from the Second World War as well as countries that had gained their independence in the past few decades faced considerable danger of falling under the influence of Soviet Union especially since they did not have strong institutional and political structures to assert their own identity. However, the reaction from these countries towards the Soviet Union could not be compared to the level of cooperation put in place by the United States and Britain as the two countries developed a coalition to face any potential threat from the Soviet Union in

Social Network - Facebook Research Paper Example | Topics and Well Written Essays - 750 words

Social Network - Facebook - Research Paper Example The end users of Facebook site always have a wide variety of information but despite this fact, the privacy implications of accessing and using this information has emerged and immensely affected them (Trepte and Leonard, 2011, pp101). On examining how Facebook has affected privacy, researchers have found massive flaws in the system. The privacy in this social media has usually been undermined by at least three key factors. These three factors, which highly affect the privacy of this social media, include: users disclose too much information, Facebook management does not take crucial steps towards protecting the users privacy, and lastly, third parties are very busy seeking end users information using Facebook (Trepte and Leonard, 2011, pp102). These three factors have made the use of Facebook as a channel of communication and interaction vulnerable, as third parties can easily access the information which was not intended for them. Though Facebook privacy policy settings specify which data will be collected about an individual user, mostly, some part of this policy is vague and confusing to the end users. Some privacy policy standards adopted by Facebook appear confusing and mostly contradict the stipulated privacy rights of the end users, for example, Facebook collects information about its end users from other external sources like newspapers, regardless of the individual use of the website (Trepte and Leonard, 2011, pp103). The gathered information from these external sources is used to supplement the end users profiles unless the individual users specify in their settings that they don’t want that to be done. To this extent, Facebook usually compromises the privacy of many end users who are mainly unaware of such settings. Despite the fact that Facebook clearly indicates what type of information they will be including in their whole process of updating individual user profiles with information they s eek from the external sources, their privacy policy and adherence thereto fall short in various areas. First, they fail to explain to the individuals the use for the extracted data (Trepte and Leonard, 2011, pp104). This means that they can avail of any individual data for various purposes like for Facebook’s marketing partners. Facebook has developed a close relationship with various corporations, thus they take advantage of the individual users and share their information to these associates without their approval. This clearly implies that there is virtually no control of what data Facebook can expose to the advertisers (Trepte and Leonard, 2011, pp105). The law regulating the disclosure allows Facebook to disclose any individual user personal data to the advertisers. This allows the advertisers to create cookies that are not governed by any privacy policy regulating the use of social media. Though there is a stipulated procedure for an individual Facebook user to request Facebook not to share his or her information with third parties, definitely there is no transparency in such procedures as individual users have no evidence of whether their request will be honored or not. In line with privacy of online information, security of information is assured through use of passwords. This allows for a restriction of access of information to those who have only been granted legitimacy to access such information. Facebook, though has vague guidelines about the use of its user’s information, has given users control over their existing information about themselves in the Facebook databases. Their terms of engagement with users clearly state that a user can remove his or her content in the Facebook d

Paper 2 Essay Example | Topics and Well Written Essays - 1250 words - 2

Paper 2 - Essay Example Compared to both Steve and Brandon, Dawn is seen as the victim of naivety brought about by lack of support from the appropriate quarters (George & Trimbur 113). The two boys represent the Goths and Monsters talked about by both Hines and Cohen in their respective essays. They are monsters in the sense that they represent what young people end up becoming and the notions that they entertain in their lives. Welcome to the Dollhouse shows that X (use of Dawn) is a portrayal of the challenges that teenagers face when they are discovering their maturity. The film portrays the two male characters (Steve and Brandon) who are Dawn’s centers of interest at different times in the movie, are a representation of the Goths mentioned in Hine’s essay. These two characters fuel Dawn’s desire for recognition which spawns her quest for sex with either of the two, which she believes will gain her acceptance. Dawn is also a representation of the monster (Y) mentioned in Cohenâ€℠¢s seventh thesis. The article Goths in Tomorrowland by Thomas Hines addresses the issues and challenges facing young adults and teenagers in their formative years of crossing over to adulthood. In the article, Hines extrapolates on how the youth, try to carve an identity for self by going through a trial and error stage which requires them to experiment with various aspects of their lives. â€Å"The body alterations that young people use to assert that they are no longer children successfully frighten grown-ups, but they also convince them these weird creatures are well short of being adults. The ring through the lip or the nipple merely seems to demonstrate that they are not ready for adult responsibility. What they provoke is not respect but restrictions† (Hine page-71). This is shown in the scene where Dawn embraces the notion of having sex with Steve after being told by her only friend Ralph that its sex that boys want from girls. After this revelation there is manipulat ion of light around Dawn especially around her face to indicate enlightenment or discovery of the secret behind getting a boyfriend. The source of this information is also made to be significant in the sense that Ralph is sitting in front of a computer. The computer represents the alternative that teenagers result to for guidance on issues that have been neglected by adults. Ralph notices the new resolve on Dawn’s face, and he offers himself to her as an alternative, but she out-rightly rejects him. To enhance the feeling of disappointment for the viewer, when Ralph bows his head, the brightness of colors around his personal space is dimmed. This aspect is further advanced by dull grey color of the wall behind the desk he is seated on in the room. When Dawn enters Ralph’s room and finds him seated at the computer, his position is from Dawn’s standing point of view from an elevated angle. This is indication of Ralph’s status and meaning to Dawn; she might be in need of his opinion but she does not hold him in high enough regard to consider him in her stature. In this scene, there is the use of color intensity alteration to help bring out the difference between two friends who are in a similar situation but have differing solutions to address their common problem of lack of friends (George & Trimbur 186). When Ralph is offering his advice to Dawn, his dull colored shirt seems brighter from Dawn’s perspective through which this instance in the scene is

Why america should legalize marijuana Research Paper

Why america should legalize marijuana - Research Paper Example Following the call of Miron, huge expenditure is incurred on housing of the offenders of these drugs and on preventive measures against this practice. In fact, an expected saving of $7.7 billion on this ground is estimated if the drug is legalized. According to the executive summary of a report submitted by Miron, â€Å"The report estimates that legalizing marijuana would save $7.7 billion per year in government expenditure on enforcement of prohibition. $5.3 billion of this savings would accrue to state and local governments, while $2.4 billion would accrue to the federal government† (Miron). Another estimate shows that the taxpayers of United States incur an excess expenditure of $12 billion, which go into the fund spent for agendas conducted against marijuana intake, research on the drug, prohibiting domestic cultivation of marijuana, imposition of the law, prosecution and arrests of the smokers of marijuana. (â€Å"Should the U.S. Legalize Marijuana?†) Legalizing ma rijuana might save these costs. Also, forcefully trying to stop the sale of marijuana might not simply bring down the number of drug dealers. They might either engage in black marketing or simply deal with other harmful substances. When a certain good is prohibited it opens doors to black market activities and consequently the corruption and crime related to black market activities. If the drug is legalized it will lead to the reallocation of important resources of the nation. For instance, cannabis when legally distributed might be put to various useful purposes apart from drugs, for example it can be used for making paper, rope, soap, lotions, fuel and lubricants. It has found use in several medicines. (â€Å"Should the U.S. Legalize Mariuana?†) In fact the black market price of marijuana in United States is USD 10.4 per gram, higher than the countries of Argentina, Bolivia, Columbia etc. (â€Å"Price of Marijuana in the

The Industrial Revolution in England Personal Statement

The Industrial Revolution in England - Personal Statement Example But this is the story of the working class. Enclosure meant that the poor, rather than the rich, constituted landless labourers. The working class had therefore lost their independence, their soul and dignity to work. But my quality of life despite this may have improved in general. The Industrial Revolution changed Manchester from a rural, and agricultural society, to an urban and industrial society. The Industrial Revolution has bought significant benefits. The spinning jenny has reduced the amount of work needed to produce yarn, the Industrial Revolution has also bought to us the steam engine, and the power driven machinery in the textile industry, in our mills, for steam-powered looms for weaving. Importantly, families are now able to generate a greater income, as the wife is now able to stay at home and work the fields whilst the husband can work freely in the factory. But a Manchester once made up of peasant farmers, enjoying rural England, became unfortunately a Manchester soaked in sap and tar that so vehemently attacked our lungs. Despite technological advances, Manchester factories turned into breeding grounds for slave-driven worker standards. Revenue took over from efficiency; employer standards took priority over employee standards. But improvements in travel conditions, such as stronger bridges and roads, and the other inventions that we can now exploit, such as the st