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Tesla turbine

Tesla turbine
Tesla turbine The Tesla turbine is a bladeless centripetal flow turbine patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. The Tesla turbine is also known as the boundary layer turbine, cohesion-type turbine, and Prandtl layer turbine (after Ludwig Prandtl). Bioengineering researchers have referred to it as a multiple disk centrifugal pump.[1][2] One of Tesla’s desires for implementation of this turbine was for geothermal power, which was described in "Our Future Motive Power".[3] Description[edit] View of Tesla turbine "bladeless" design Tesla wrote, "This turbine is an efficient self-starting prime mover which may be operated as a steam or mixed fluid turbine at will, without changes in construction and is on this account very convenient. This turbine can also be successfully applied to condensing plants operating with high vacuum. Pump[edit] Tesla Other Related:  Nikola Tesla

Plasma globe A plasma globe with filaments extending from the inner sphere to the outer. Description[edit] The effect of a conducting object (such as a hand) in close proximity with the plasma globe glass Some globes have a control knob that varies the amount of power going to the center electrode. At the very lowest setting that will light or "strike" the globe, a single tendril is made. Placing a finger tip on the glass creates an attractive spot for the energy to flow, because the conductive human body (having non-ohmic resistance of about 1000 ohms at room temperature) is more easily polarized than the dielectric material around the electrode (i.e. the gas within the globe) providing an alternative discharge path having less resistance. Much of the movement of the filaments is due to heating of the gas around the filament. An electric current is produced within any conductive object near the orb. The globe is prepared by pumping out as much air as is practical. History[edit] Video of plasma globe

Build a 15,000 rpm Tesla Turbine using hard drive platters Here's a project that uses some of those dead hard drives you've got lying around. In the Tesla Turbine, air, steam, oil, or any other fluid is injected at the edge of a series of smooth parallel disks. The fluid spirals inwards and is exhausted through ventilation ports near the center of the disks. A regular blade turbine operates by transferring kinetic energy from the moving fluid to the turbine fan blades. In the Tesla Turbine, the kinetic energy transfer to the edges of the thin platters is very small. Instead, it uses the boundary layer effect, i.e. adhesion between the moving fluid and the rigid disk. To build a turbine like this, you need some dead hard drives, some stock material (aluminum, acrylic), a milling machine with a rotary table, and a lathe with a 4 jaw chuck. Wikipedia has a good review article ( as well as articles about I run my turbine on compressed air (40 psi), and it easily reaches speeds of 10-15,000 rpm.

Tesla Coil Design, Construction and Operation Guide The by Kevin Wilson In conjunction with TeslaMap - Tesla Coil Design Program © 2009-2015 by Kevin Wilson Introduction Welcome to the Tesla Coil Design, Construction and Operation Guide. Design The guide will begin with a basic introduction to Tesla coils, how they operate and how to properly design one. Construction This section will guide you through the process of Tesla coil construction. Operation Finally, I'll explain how to set-up and adjust your Tesla coil for safe operation and maximum efficiency. This guide is intended for anyone with basic to advanced experience with electronics, some free time and a desire to create their own lightning. This guide was written to be used in conjunction with the TeslaMap program. Through the guide I use this type of area for information that is potentially dangerous. Through the guide I use this type of area for information that can help you avoid common mistakes. Good luck building your Tesla coils! Pesky Advertisement I apologize for this annoying ad.

Fluide parfait Un article de Wikipédia, l'encyclopédie libre. En mécanique des fluides, un fluide est dit parfait s'il est possible de décrire son mouvement sans prendre en compte les effets de viscosité et de la conductivité thermique[1]. Avec en plus l'hypothèse, de validité très générale, de conservation de la masse[2], le mouvement du fluide est donc isentropique[3]. Mathématiquement cela revient à annuler les termes correspondants dans l'équation de Navier-Stokes, on obtient ainsi l'équation d'Euler des fluides. Ce sont le produit des coefficients de viscosité et de conductivité thermique (et pas seulement ces coefficients) avec respectivement les cisaillements de vitesse et les gradients thermiques, qui doivent être négligeables. Tous les fluides ayant une viscosité (sauf un superfluide, ce qui en pratique ne concerne guère que l'hélium à très basse température et l'intérieur d'une étoile à neutrons), le fluide parfait ne peut être qu'une approximation pour une viscosité tendant vers zéro. où d'où

La turbine à vapeur Tesla Nikola Tesla, célèbre dans le monde entier comme électricien, étudie actuellement un nouveau type de turbine à vapeur. Les détails précis sur le rendement et les qualités mécaniques de cette machine manquent ; mais elle a, pour le moins, le mérite de l’originalité. La turbine à vapeur est, de par son principe même, un appareil d’une grande simplicité, M. Tesla a réussi à la simplifier davantage encore, et sa solution a, en outre, le mérite de fournir une turbine rigoureusement réversible, pouvant tourner à volonté et avec le même rendement dans un sens ou dans l’autre. Voici, d’après Scientific American, les caractères essentiels de la nouvelle machine. Dans les divers types de turbines aujourd’hui en usage : de Laval, Parsons, Curtiss, Rateau, et autres, la vapeur d’eau abandonne son énergie aux ailettes motrices, par choc, par pression, ou par réaction. Le fluide pénètre par B, ajutage qui peut être divergent, droit, ou convergent. M. Signalons aussi que les études actuelles de M.

Wireless energy transfer The most common form of wireless power transmission is carried out using direct induction followed by resonant magnetic induction. Other methods under consideration are electromagnetic radiation in the form of microwaves or lasers[1] and electrical conduction through natural media.[2] Electric energy transfer[edit] An electric current flowing through a conductor, such as a wire, carries electrical energy. When an electric current passes through a circuit there is an electric field in the dielectric surrounding the conductor; magnetic field lines around the conductor and lines of electric force radially about the conductor.[3] In a direct current circuit, if the current is continuous, the fields are constant; there is a condition of stress in the space surrounding the conductor, which represents stored electric and magnetic energy, just as a compressed spring or a moving mass represents stored energy. Electromagnetic induction[edit] Electrodynamic induction method[edit]

Tesla turbines for highschool students Here are some photos of some Tesla Turbines my Highschool Engineering students created as part of their studies into mechanisms and power transfer. Their brief was to investigate experimental power generation systems and create a prototype using available materials. I have provided the Task Overview below. Once the turbines where complete we tested their RPM and efficiency using a car timing light, changed and improved parts such as bearings etc and retested to see improvements in efficiency. Task Overview (scenario) Global - Tech Engineering are a socially conscious Engineering firm. The system must have the following considerations: high efficiency. made from available, cost efficient materials (preferably recycled or low impact materials). environmentally sound (no harmful by-products or toxic materials). small – scale or easily disassembled. be able to be mass produced in a standard workshop.

Build an Amazing Tesla CD Turbine Build a real working turbine from recycled CD's! This Tesla CD Turbine is based on the Tesla turbine, which was invented by Nikola Tesla in the early 1900's. Tesla's pumps and motors were unique in that they only used discs, and took advantage of the boundary layer effect. His smallest designs were over 100 horsepower. This Instructable is an introduction to my recently developed Tesla CD Turbine, which is made from CD's, CD spindle, pipe fittings and glue. The basic model Tesla CD Turbine shows how the boundary layer idea works to deliver power. The advanced model has many cool features, such as the use of neodymium magnets to separate the CD's with the correct gap and a Magnetic Coupler to attach implements, and much more. My next CD Turbine Instructable shows how to make a Magnetic Disc Pack and Magnetic Coupler for more advanced CD Turbine experimentation. However, please be forewarned that this turbine on air pressure is not really a kid's toy or particularly safe to operate.

Superfluide Un article de Wikipédia, l'encyclopédie libre. La superfluidité est un état de la matière dans lequel celle-ci se comporte comme un fluide dépourvu de toute viscosité. Découverte en 1937 par Pyotr Leonidovitch Kapitsa, simultanément avec, semble-t-il, John F. Allen et A. Point lambda[modifier | modifier le code] Les physiciens mentionnés ci-dessus ont constaté qu'en dessous de la température critique de 2,17 kelvins, (soit -270,98 °C), qui est appelé le point lambda (λ), l'hélium 4 subissait une transition de phase. Des expériences plus spécifiques à la mécanique des fluides montrèrent ensuite que l'écoulement de cet hélium dans un tuyau était sensiblement indépendant de la pression appliquée sur les parois du tuyau, et de plus indépendant de la section du tuyau en question. Ceci ne pouvait s'expliquer que par une absence totale de viscosité, d'où le nom de superfluidité. Finalement, un liquide est dit superfluide s’il n'oppose aucune résistance à l'écoulement. Portail de la physique

la turbine de Tesla - Partage d'idées et de connaissance Cette turbine a été conçu puis breveté par Nikola Tesla en 1913. Sa caractéristique est qu'elle n'utilise aucune pale. Comme exemple : une pale d'hélice d'avion ou d'hélicoptère. Plusieurs pales (le plus souvent au nombre de 2,3 voir 4) qui sont fixé à un moyeu central. La turbine de Tesla est connue sous les noms de turbine à couche limite, turbine à cohésion. "L'entente d'une des grandes centrales électriques de chaleur terrestre de l'avenir. ""All that is necessary to open up unlimited resources of power throughout the world is to find some economic and speedy way of sinking deep shafts." Une turbine de Tesla est conduite par un jeu de disques lisses, avec des buses appliquant un gaz sous pression sur les bords des disques. Nikola Tesla a ecrit : "'Cette turbine est un moteur efficace capable de démarrer par lui-même qui peut s'employer comme turbine à vapeur ou à fluide mixte librement, sans modification de sa construction et est très pratique de par cet aspect.

Tesla electric car The Tesla electric car anecdote refers to a supposed Tesla invention described by a Peter Savo (who claimed to be a nephew of Tesla), to one Derek Ahers with the date September 16, 1967. Savo said that Tesla took him to Buffalo, New York in 1931 and showed him a modified Pierce-Arrow automobile. This story has received some debate for the fact that the car's propulsion system is said to have been invented by Tesla. A number of web pages exist that serve to perpetuate the tale. References[edit] Jump up ^ Robert Nelson. Further reading[edit] External links[edit] Interesting Facts About Nikola Tesla Student invention lets Guatemalans pump water on the go University of Sheffield student Jon Leary was required to “make something useful out of rubbish” as part of his dissertation. What he ended up doing was transforming lives. As part of his studies as a Mechanical Engineering major, Leary spent four months in Guatemala. There, he introduced the locals to his bicibomba movil, a mobile bicycle-powered water pump. View all Leary developed the system while still in the UK. “The inspiration came from regular pannier racks that are used on touring bikes to carry things over the back wheel of a bike” Leary told us. The bicibomba movil was introduced with the help of Maya Pedal, a local organization that champions pedal-powered technology in the region. The mobile aspect of Leary’s invention, however, makes it attractive to farmers. Jon’s device can reportedly be made quite easily, using standard tools along with old bikes, bits of metal, and scrapped electric centrifugal water pumps.

Étoile à neutrons Un article de Wikipédia, l'encyclopédie libre. Historique[modifier | modifier le code] Le concept d'étoiles à neutrons est né immédiatement après la découverte du neutron en 1932 par James Chadwick. Le physicien Lev Landau proposa alors qu'il puisse exister des astres presque entièrement composés de neutrons et dont la structure serait déterminée par un effet de mécanique quantique appelé pression de dégénérescence, à l'instar d'une autre classe d'astres, les naines blanches dont la structure est déterminée par la pression de dégénérescence des électrons. Deux ans plus tard, en 1934, les astronomes Walter Baade et Fritz Zwicky eurent l'intuition que le passage d'une étoile ordinaire à une étoile à neutrons libèrerait une quantité considérable d'énergie et donc de rayonnement électromagnétique, donnant l'illusion de l'allumage d'un astre nouveau. L'étude des étoiles à neutrons n'a pris son essor qu'à partir de leur phénomène d'émission pulsée les révélant sous la forme de pulsar.