Creative Play: A Royal Life :: essays research papers

Creative Play: A Royal Life LAUREN: Good after noon, I am lady Lauren and this is Lady Jadie. JADIE: 'Ello LAUREN: We are ladies of the royal court of beef-a-lot, and we do anything we like with our time. Being pampered royalty is so much fun. And we have our father king Edward to take care of the political matters, so we can spend our lives in bliss. JADIE: I personally enjoy painting, horseback riding and learning, especially languages. This whole "rebirth" movement is very intriguing. It all started back about 1500 or so, with people, for one reason or another beginning to learn and care about what happened to them. They realized that they controlled their own destiny. LAUREN: I feel the same, with all the new inventions, it possible to learn at an amazing rate. Moveable type printing presses, Indoor chamber pots, new dyes to make everything around very pretty. This is a very enjoyable time for me. JADIE: Yes, Yes, how true. Especially the pretty things. Our dresses are brightly colored and extremely detailed, as that was the movement in fashion of our time. These things are very expensive and only royalty such as ourselves can afford such a luxury. LAUREN: Say, do you know what's for dinner tonight? JADIE: Silly girl! Its what we have every night in the castle Ingvey, Everything! A feast of huge proportions. Bread, cheese, meat, fish, vegetables†¦ all made fresh by the peasants this morning. Yes, what a glorious time to live. LAUREN: And you people (looking at the class) would you care to join us in our feast? THE PEASANTS LIFE: BEEF: This is what most of the people in the renaissance lived like, poor in spirit and in health. I am a day laborer, as is my friend Sonic. We awake at dawn and work in the fields till dusk. We return home to our wives and many children. Tonight is a special night for me, as I get to dine on meat, which is rare in my life†¦ but then again so is bathing. (smile) Typically we eat vegetables which our wives have grown in the meager gardens behind our houses. My personal favorite is carrots, I like carrots. (smile again) What about you? SONIC: Broccoli. BEEF: We are dressed in large, baggy pants, made out of cotton. Our shirts are of linen, and are large enough to keep us warm during those cold winter nights. The large baggy pants serve the same purpose, to keep us warm. We don't have enough money to buy the brightly colored clothes that our Queen, Lady Lauren has.

Hydraulic Turbines

M.V. Sai Ram AP17110020010 Branch: ECE Here some of the problems I faced in the research of the hydraulic turbines. Effect of blade numbers on slip factor of hydraulic turbine: The change curve of slip factor is shown when the blade numbers change at the design condition . With the increase in blade numbers, the slip factor within centripetal impeller is gradually increased, and the rate of increase is gradually decreased. Therefore, with the increase in blade numbers, the slip value within centripetal impeller is gradually decreased. The main reason is that function of restriction of blade gradually strengthens for fluid with the increase in blade numbers; it leads to the slip value within centripetal impeller being gradually decreased.Effect of entrance width of centripetal impeller on slip factor of hydraulic turbine. The hydraulic efficiency of a turbine excludes friction losses on the outside of the runner, leakage loss of water that does not pass through the runner blades and mechanical friction losses. The hydraulic efficiency of a well-designed turbine is 98-99%.Can interaction occur between the electric power system and the hydraulic system for this frequency range.Velocity and pressure are highly sensitive to the operation conditions. It has been found that the stresses in the trailing edge of the runner blade near the crown reach a critical state in all operating points.Abstract:A set of empirical has been developed which defines the peak efficiency and shape of the efficiency curve for hydraulic turbines as a function commissioning date for the unit ,rated flow, runner speed, and throat or impulse turbine jet diameter.The aim of this investigation was to develop an environmentally friendly nano-hydraulic turbine utilizing waterfalls. A model of an impulse type hydraulic turbine constructed and tested with an indoor type waterfall to arrive at an optimum installation condition. Effects of an installation parameter, namely distance between the rotor and the waterfall on the power performance were studied. The flow field around the rotor was examined visually to clarify influences of installation conditions on the flow field. The flow visualization showed differences of flow pattern around the rotor by the change of flow rate and rotational speed of the rotor.Every single turbine is custom-designed specifically to meet the requirements of a hydroelectric power plant. Performance of a designed turbine is validated, to some extent, by computational fluid dynamics simulations. Field performance testing of hydraulic turbines is undertaken to define the head-power-discharge relationship that identifies the peak operating point of the turbine. This relationship is essential for the efficient operation of a hydraulic turbine.The art of hydraulic turbine design never stands still but always progresses. In recent years major emphasis has been on the materials of construction and on such features of design as will reduce maintenance work and costly outages in the field.LimitationsHydro power plant or we can say that hydraulic turbines are widely used from the last decades. It is an efficient renewable energy source. There are many up and downs. Hence there Some limitations as shown in below,It is a renewable energy source. Water energy can be used again and again.the running cost of turbine or less compare to other.It has high efficiency.It does not pollute environment.It is to maintain.Importance: Here the importance of hydraulic turbine and their uses Turbines are used for hydropower generation. There are basically two types of hydraulic turbines, the first one is impulse and the second one is reaction type turbines. Impulse turbinesThe use of hydraulic turbines for the generation of power has a very strong historical tradition. The first truly effective inward flow reaction turbine was developed and tested by Francis. Modern Francis turbines have developed into very different forms from the original, but they all retain the concept of radial inward flow(Aradag,2018)Hydraulic turbines are not only used to convert hydraulic energy into electricity but also in pumped storage schemes, which is the most efficient large-scale technology available for the storage of electrical energy. Separate pumps and turbines or reversible machines, so called pump turbines, are used in such schemes.(Gordon,2010)The efficient application of advanced CFD is of great practical importance, as the design of hydraulic turbines is customtailored for each project. a CFD-based design method is used to obtain the runner blade shape and characteristics. The hydraulic turbine used to convert the potential energy of water to mechanical energy. Flowing water is directed on to the blades of a turbine runner, creating a force on the blades. Since the runner is spinning, the force acts through a distance (force acting through a distance is the definition of work). In this way, energy is transferred from the flowing water to the turbine.(Guangtai,2015) In Francis turbines, water enters the turbine runner in the radial direction and leaves axially. The main parts of a Francis turbine are spiral case, stationary vanes, guide vanes, runner, and draft tube, as shown in Figure 1. The flowrate and accordingly the produced power are adjusted by the guide vanes. The spiral case regulates the velocity profile entering the turbine, whereas the stationary vanes provide the mechanical strength.3 The most critical part of the turbine, runner, converts the water energy to mechanical energy and rotates the generator(Aradag,2018)A new design of main bearing and carbon seal ring for vertical-shaft Francis turbines provides a bearing immersed in an oil bath covering about one-third of its vertical length. Properly slanted and shaped oil grooves provide for self lubrication, thereby eliminating the troubles usually associated with mechanical lubrication. (Rheingans,1948)Research:The research I have done based on the hydraulic turbines and power plant design. The goals in the development of an optimal water turbine with high efficiency. Can interaction occur between the electric power system and the hydraulic system for this frequency range. Hydraulic turbines of hydroelectric power plants are designed and manufactured according to the head and discharge parameters of a specific plant. Each hydroelectric power plant is different and requires a custom-designed turbine for better performance.Francis-type hydraulic turbines : In Francis turbines, water enters the turbine runner in the radial direction and leaves axially. The main parts of a Francis turbine are spiral case, stationary vanes, guide vanes, runner, and draft tube. The flowrate and accordingly the produced power are adjusted by the guide vanes. The spiral case regulates the velocity profile entering the turbine, whereas the stationary vanes provide the mechanical strength.The most critical part of the turbine, runner, converts the water energy to mechanical energy and rotates the generator. The principal feature of a reaction turbine that distinguishes it from an impulse turbine is that only a part of the total head available at the inlet to the turbine is converted to velocity head, before the runner is reached. Also in the reaction turbines the working fluid, instead of engaging only one or two blades, completely fills the passages in the runner. The pressure or static head of the fluid changes gradually as it passes through the runner along with the change in its kinetic energy based on absolute velocity due to the impulse action between the fluid and the runner. Description Reference List: Brekke,H.(January 08,2010).Performance and Safety of Hydraulic Turbines,12(1),1-11,Beijing, China. Retrieved: 9 March 2018http://iopscience.iop.org/article/10.1088/1755-1315/12/1/012061Gordon,J.L.(December 18,2001).Hydraulic Turbine Efficiency,28(2),238-253,CanadianJournal of Civil Engineering. Retrieved: 10 March 2018http://www.nrcresearchpress.com/doi/abs/10.1139/l00-102#.Wqgl0ehuZPZGuangtai,S.Xiaobing,L.Junhu,Y.Senchun,M.Jicheng,Li.(Juli,2015).heoretical research ofhydraulic turbine performance based on slip factor within centripetal impeller,7(7),1-9.Retrieved: 11 March 2018https://doi.org/10.1177/1687814015593864Ikeda,T.Tatsuno,k(January 03,2010).Performance of Nano-hydraulic turbine utilizingwaterfalls,35(1),168.Retrieved : 10 March 2018https://www.researchgate.net/publication/222577757_Performance_of_nano-hydraulic_turbine_utilizing_waterfallsKavurmaci,B.Celebioglu,K.Aradag,S.Tascioglu,Y.(June 29,2018),50(3),70-73Model Testing of Francis-Type Hydraulic Turbines . Tobb University of Economics andTechnology, Ankara, Turkey. Retrieved: 7 March 2018https://doi.org/10.1177/0020294017702284Manness,J.Doering,j(March 26,2005).An improved model for predicting the efficiency ofhydraulic propeller turbines,32(5),789-795, Canadian Journal of Civil Engineering. Retrieved:9 March 2018http://www.nrcresearchpress.com/doi/abs/10.1139/l05-029#.Wqh9suhuZPYhttp://ieeexplore.ieee.org/document/6444369/authorRudd, F.O. (July 01,1965).Hydraulic Turbine Setting Criteria,87(3),295-298.Technical Engineering Branch Analysis Branch. Retrieved: 5 March 2018http://gasturbinespower.asmedigitalcollection.asme.org/article.aspx?articleid=1416900

The Gladiator Of The Roman Empire - 1150 Words

Scott Galati Mr. Berger World history 1010 11/30/14 Roman Gladiators The Romans liked watching other people die; their gladiator games were there live entertainment. It is believed that the first gladiators were slaves who were made to fight to the death at the funeral of a famous aristocrat, Junius Brutus Pera, in 264 BC. The fight between the two was arranged in his honor. Gradually the gladiator games became separated from funeral ceremonies and were staged by the wealthy as a means of displaying their power and influence among the people in the local community. The wealthy and elite classes could promote themselves by sponsoring the games, and paying to put the show on. The term Gladiator comes from the term gladius after the Roman sword. The gladiators were mostly prosecuted criminals, imprisoned soldiers and slaves. These people would be forced to fight other prisoners, sometimes until their death in the case that it was decided for him to die, usually by the spectators. Rarely gladiators would be free, men would sometimes volunteer to be a glad iator and take on the status of a slave to reap the benefits of fame that came along with the title, the fans and money .But the most likely reason why people volunteered was the down-payment that a volunteer received upon taking the gladiator oath. When this oath was taken it meant that the owner the now gladiator had total control over the gladiator s life, making him lowered the status of a slave. Gladiators were known forShow MoreRelatedThe Gladiator The Movie Directed Ridley Scoot Bases A Story During The Ancient Roman Empire977 Words   |  4 PagesThe Gladiator the movie directed Ridley Scoot bases a story during the ancient Roman Empire when the great philosopher and emperor of Rome was Marcus Aurelis. Who is portrayed in the begging of movie as very ill and on his last days, but still on the toe of his battles regarding his health. 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