Tesla had nearly 300 patents and countless ideas and inventions, but frequently referenced his particular turbine innovation as one of his most important. Pdf design of a bladeless wind turbine semantic scholar. Like its bladed turbine counterparts, it converts moving fluids into energy. However, instead of using angled blades to rotate a shaft, it uses smooth, parallel discs. Fluid entering through the inlets spirals inwards between disks, transferring power to the rotor shaft. Flowmodel cfd calculations of various models of tesla disk turbines were carried out on the basis of the rans model wilcox, 1993 supplemented by the k sst menter etal. As a result of this model work, a new tesla turbine of different dimensions was designed to adjust for flaws in the experimental turbine. Tesla turbine download pdf info publication number us20020182054a1. History of tesla turbines a tesla turbine is a quite unique technology.
In tesla turbines, the fluid profile and the length of the fluid path inside the rotor control the pressure drop and momentum transfer. Tesla s patent paperwork doesnt define a specific number, but uses a more general description, saying that the rotor should contain a plurality of disks with a. A novel methodology for the complete design of a tesla turbine was developed. Learn how to make a powerful high rpm tesla turbine motor from plywood and aluminum flashing. The aerodynamic power and power coefficients curves are drawn for the optimized wind turbine. Side pieces for the new 6 inch turbine runner housing were cut from 0. The pros and cons of tesla turbines are discussed in this article, as are those of the tesla pump. The hybrid tesla pelton wheel turbine is similar to the tesla turbine, except for its discs, that are all or in part replaced by the new discs that have characteristics of the pelton wheel. The tesla turbine is also known as the boundarylayer turbine, cohesiontype turbine, and prandtllayer turbine after ludwig prandtl because it uses the boundarylayer effect and not a fluid impinging upon the blades as in a conventional turbine. It was invented and patented by nikola tesla on the 21st october 1909 at the united states patent office from experiments done in england. In the same year kenneth hicks 11 published a patent with an.
Instead, some of the air or water pushes the outer edge of a disk, and the as the rest is pulled between the disks, flow is converted into tighter spirals which generate centrifugal force. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. The investigation yielded a design capable of generating 300 w under conditions of 20 m head and 2. Tesla s new engine was a bladeless turbine, which would still use a fluid as the vehicle of energy, but would be much more efficient in converting the fluid energy into motion. The tesla turbine performance potential for orc application was assessed. Modern improved and effective design of boundary layer. Industrial tesla turbines may be used in hybrid cars or in commercial applications. The turbine is also known as the boundary layer turbine and prandtl turbine operating on the principle of the boundary layer. Aerodynamic design of horizontal axis wind turbine blades. A revised tesla turbine concept for orc applications. One such turbine called the bladeless turbine that poses to be the ideal. Teslas new engine was a bladeless turbine, which would still use a fluid as the vehicle of energy, but would be. The purpose of which is to enhance the torque of the turbine.
Pdf design and analysis of prototype tesla turbine for power. The top half of casings is removed, showing two rotors. Understanding and preventing steam turbine overspeeds by william e. This project is to design and fabricate the tesla turbine with gas as working fluid and looking at the potential of installation a tesla turbine onto the car in order to utilize those energy which. As a pump it can do some really cools stuff as other people have posted. In this paper, a design method based on blade element momentum bem theory is explained for hawt blades. May 07, 2010 the bladeless wind turbine is completely enclosed in a relatively small compact unit. Pdf this paper offers a fundamental ideal to design household green. Instead of using windpowered blades to rotate a shaft and generator, the tesla inspired design consists of an. So, when jet of fluid passes through the disk,dueto adhesion the disk will rotate. Study and design of bladeless tesla turbine research india.
The steam enters at the periphery, and flows in spiral paths to exhaust at the center of the disks. Design and optimization of a tesla turbine for orc applications. Each rotor consists of 25 disks 38inch thick by 18 inch diameter. Discs have to be as thin as possible, to preventturbulenceatdiscedges. The tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in 19. A tesla turbine is a blade less centripetal flow turbine patented by nikola tesla in the early 20th century. Tesla turbine previous work tesla turbine performance has been characterized by many researchers. Nikola tesla in 19,1 whose rotation shaft was driven by the viscous. This design consists of bladeshape washers between the discs thus, the. Three dimensional model of the new proposed design of the tesla turbine has been made with the. The turbine is supplied on a aluminium base for display and demonstration purposes connected using two m6 hex cap screws. With a design inspired by a ships sails, saphon energy has created the saphonian a bladeless wind turbine at double the efficiency, and half the cost, of a regular wind turbine.
Rices 2 analysis was among the first and claims turbines can be made up to 90% efficient, and designs on paper by hoyan and lawn et al claim over 70% efficiency 3 4. The bladeless wind turbine is completely enclosed in a relatively small compact unit. Tesla s pumps and motors were unique in that they only used discs, and took advantage of the boundary layer effect. Nikola teslas revolutionary turbine still lies untouched. This tesla turbine design use 10inch saw blades with 200 teeth to build this 30 blade turbine. In the netherlands there are several private initiatives to put up large wind turbines. The tesla turbine does away with the blades and uses a series of disks instead. Tesla turbine 3d printable 3d cad model library grabcad. The word turbine in this situation can be misleading. Two and three dimensional models of the proposed tesla turbine. Nelson turbomachinery consultant dickinson, texas and perryc. Most people know nikola tesla, the eccentric and brilliant man who arrived in new york city in 1884, as the father of alternating current.
Pdf froude scaling is a generally reliable way to design models of floating wind turbines for wave basin testing. Jun 01, 2015 a practical design tool is also offered, which inputs user specifications on head, flow, particulate size, and medium to generate a list of possible turbine designs along with a recommendation for four candidate designs. Abstract turbines that would provide a quiet, safe, simple and efficient alternative to our supposedly advanced bladed turbine aircraft engines are the need of the hour. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Jul 19, 2017 this tesla turbine design use 10inch saw blades with 200 teeth to build this 30 blade turbine. A hybrid tesla turbine with boundary layers and blades. A boy watches a radiocontrolled boat in the town of smiljan, croatia, nikola tesla s hometown.
Abstract of the invention an improved turbine using the edge of the blades of the working surface instead of the blade s face, and further utilizing both expansion blades and adhesion discs. A matlab gui is provided for generating design specifications and turbine performance sensitivity. Previous work tesla turbine was patented by nikola tesla in 1903. Re reynolds number based on blade height and absolute velocity at stator outlet. If not built properly, blades could break or crack. In comparison, a bladed turbine design uses pressure forces from the fluid on the blades to turn them, not frictional forces.
Pdf design of a bladeless wind turbine tresa harsha p. Design and computational analysis of 1 kw tesla turbine. The turbine design and generator mount allows for possibility of changing the generator or connecting to something else. Design and operation of tesla turbo machine a state of the. We are talking about water turbine so the materials, of which is the turbine going to made, cannot come under rust. Naturally, the performance of tesla turbines has already been characterized by a number of researchers. Design and operation of tesla turbo machine a state of. A preliminary design of a tesla turbine for pico hydro applications has been undertaken employing rices analytical method. Tesla turbine design has the fluid flow between two parallel disks in. Design and optimization of a tesla turbine for orc. As its description explains, the tesla turbine is a blade less solution.
Understanding and preventing steam turbine overspeeds by. Contrary to popular belief, he didnt invent the bladeless turbine, but he took the basic concept, first patented in europe in 1832, and made several improvements. 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. There are a lot of factors geometry, pressure ratios, rpm that affect the efficiency of a turbomachine, but generally, tesla turbines perform poorly at high flow rates, most likely due to frictional losses. The turbine housing pieces were cut from standard 0. Instead of a conventional pump or turbine, which has blades, the solution from tesla lacks these elements.
At the lowhead and lowflow region, the tesla cmscale turbine operating range is superimposed. Our tesla turbine design and associated other innovations represent the ideal economical and efficient way to convert the ecat heat into electricity. Turbines that would provide a quiet, safe, simple and efficient alternative to our supposedly advanced bladed turbine aircraft engines are the need of the hour. You can then run the motor on compressed air to test it. The new addition in the design is that a special blade type strip is mounted on the top of the each disc. Results of the models show that the vortex model sets. The tesla steam turbine scientific american september 30th, 1911 tesla s new monarch of machines new york herald oct. The tesla turbine testing plant at the edison waterside station, new york. The aerodynamic design principles for a modern wind turbine blade are detailed, including blade plan shapequantity, aerofoil selection and optimal attack. Obviously the tesla turbine and other innovations products can be sold on the open market and have dozens of other uses and a huge potential for commercialization.
Tesla turbines are made out of a series of thin disks attached to a central rotor. One such turbine called the bladeless turbine that poses to be the ideal replacement for the conventional turbines was successfully designed. This tesla cd turbine is based on the tesla turbine, which was invented by nikola tesla in the early 1900s. Rices 2 analysis was among the first, and claims that turbines can be made up to 90% efficient.
The tesla turbine is different in the sense that air and water do not strike a blade. Aerodynamic design, analysis and dynamic modelling of a. An innovative model for the solution of rotor flow field was applied. Ive been inspired by johnnyq90, so a massive thanks to. Oct 19, 2016 as its description explains, the tesla turbine is a blade less solution. Design and fabrication of cmscale tesla turbines eecs at. Hasinger and kehrt9 explored the fluid flow in a blade less turbine. The estimation of total to static expander efficiency above 60.
Unique tesla turbine design tesla on the tesla turbine such a machine is a thermodynamic transformer of an activity surpassing by far that of any other prime mover, it. The tesla turbine motor plans free energy motors and. Design, manufacturing and testing of a hybrid tesla turbine ijeat. Pdf design and fabrication of cmscale tesla turbines. In 19 nikola tesla patented a turbine without blades, that uses a series. The theoretical stall torque models were then applied to the new tesla turbine design.
A tesla turbine seemed like the most interesting option, and this is the build. The design of such an unconventional turbine was conceived considering the catastrophic. To avoid excessive vibration and cracking of the lexan material it was clamped between two pieces of 14 plywood while cutting. Sep 09, 2011 as a turbine the tesla turbine is terrible. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. The efficiency of the preliminary turbine design was near 80% but it is believed that. The apparatus comprises a runner composed of a plurality of flat rigid disks of suitable diameter, keyed to a shaft 16, and held in position thereon by a. Tesla s favorite invention, the turbine is a superefficient design that has no blades, relying instead on smooth, closely spaced discs that get dragged along by. Tesla turbine implementation as a nonconventional energy resource vii. The aim is to eliminate these problems by advancement in design i. Tesla turbine design and the theory of operation of an.
Nearby is a bladeless waterwheel turbine of tesla s design. Pdf the objective of the present research is to examines the potential benefits of tesla. Study and design of bladeless tesla turbine 883 also be achieved with protuberances which are raised in the plates by blows or pressure. Pdf design, analysis and test of a model turbine blade. Pdf development of tesla turbine for green energy applications. Teslas design of turbines is the topic of this seminar. In nikola tesla 1 patented a turbine without blades that uses a series of rotating discs to convert energy of fluid flow to mechanical rotation, which can be used to. The size and number of the disks can vary based on factors related to a particular application. I have seen tesla fans try to make jet engines using the tesla turbines for. The theory of operation of a tesla turbine relies on boundary layer effects, which makes for good efficiency for the tesla turbine. After the experiment the tesla turbine will be used as an educational instrument.
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