The turbine is supplied on a aluminium base for display and demonstration purposes connected using two m6 hex cap screws. After this model was created, i built the turbine from the ground up, using old hard drive discs as the runners within the turbine. Around the year 1900 nikola tesla, the inventor of the alternating current motor, developed a different kind of steam turbine. Tesla turbine was designed to use fluids as motive agents to rotate the rotors. Many experiments have conducted using tesla turbines for various applications such as steam turbines, turbo for automobiles. This is a small tesla turbine i designed while here at boston university. Barriers to tesla turbine commercialization howstuffworks. A tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in the early 20th century. There are several other terms in usage today, like turbo, bullet and multiple baffle. Nikola tesla stated in his patent that in order to achieve the highest economy,the changes in the velocity and direction of movement of the fluid should be as gradual as possible.
What are the advantages of using the tesla turbine pump. In tesla turbines, the fluid profile and the length of the fluid path inside the rotor. After the experiment the tesla turbine will be used as an educational instrument. The data were then used to design an appropriate dynamometer and airflow experiment.
A turbine, with discs of 92mm in diameter, central exhaust, plenum. One of the original turbines designed by nikola tesla. Pdf design and fabrication of cmscale tesla turbines. Cost the first thing often ignored is the potential cost of a tesla pump. Full text of the design, construction and investigation. The rear most discs in the forward turbine have two radial slits, the smaller center ones are for the combustion air, the farther ones are for the bypass. Fluid entering through the inlets spirals inwards between disks, transferring power to the rotor shaft. The bowl solar collector, pumps energy inside the thermal battery, which then is fed to the carlson boiler, 20 bar steam is produced, fed into the tesla turbine, and at the exhaust of the turbine, another carlson heat exchanger is used as a condenser, to collapse the steam, and driving the turbine from both ends so. As the part of my projects designing of tesla turbine is take as my projects topic. This is a new tesla turbine design that allows you to start under load. Tesla turbine torque modeling for construction of a. This tesla concept turbine option utilizes ten hard drive platters from a 1990 harddrive. This is the first time a tesla turbine is shown being used for air craft engine use, creating potentially a new era in. Working fluid variations and turbine performance by aaron peshlakai.
Eventually, the fluid exits through the exhaust ports in the center of the turbine. To make the turbine run, a highpressure fluid enters the nozzles at the stator inlets. Tesla intended to use his turbine to propel aircraft, in geothermal power plants, in cars instead of pistons, for vacuum pumps, for compressing air and liquifying gases. So an intricate design after all when wanting high efficiencies on par or even better than. The tesla turbine concept has recently been adapted to wind turbines. This, more than anything, prevented the tesla turbine from becoming more widely used. Designing a 3d printed tesla turbine part 1 markforged. The steam enters at the periphery, and flows in spiral paths to exhaust at the center of the disks. Tesla turbine from hard drive platters for electrical. Design and optimization of a tesla turbine for orc applications applied energy, vol.
Boundary layer tesla turbine page stanford university. How efficient are teslabladeless turbines as reddit. Jul 19, 2017 this tesla turbine design use 10inch saw blades with 200 teeth to build this 30 blade turbine. Polish maritime research, design analysis of tesla.
The calculation domain for four models of the tesla turbine tab. Tesla turbines and pico hydro several aspects of the tesla turbine cater well to pico hydro applications. Those are pressure ratio, gas turbine electrical output, overall efficiency, gas turbine exhaust temperature and exhaust. Instead of using windpowered blades to rotate a shaft and generator, the tesla inspired design consists of. 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. Design and order your tesla model s, the safest, quickest electric car on the road. Construction and investigation of a tesla turbine by audley b leaman thesis submitted to the faculty of the graduate school of the uniter tfity of maryland in partial fulfillment of the requirement for the degree of master of science 1950 the design, construction and. The available literature regarding the design aspects of micro turbine. Discs have to be as thin as possible, to preventturbulenceatdiscedges. This is the first time a tesla turbine is shown being used for air craft engine use. Pdf design and computational analysis of 1 kw tesla turbine. The design includes an airfoil shaped spacer near the perimeter of the disk to induce lift and add further torque to the rotating shaft fuller, 2010. With exception to the outer plexi casing which was done with a 3 axis cnc, everything else was fabricated by hand with a mill and a lathe.
Teslas design attempted to sidestep the key drawbacks of the bladed axial turbines, and even the. A revised tesla turbine concept for orc applications. This is the second installment of a two part series detailing the retrofitting of a machined tesla turbine with markforged parts. It can be driven by an electric motor or mechanical drive. On the tesla turbine proceed to the simple steam engine, please. This is a very simple, and low cost centrifugal that is also durable. I am shibiraj, four year mechanical engineering student. May 07, 2010 the bladeless wind turbine is completely enclosed in a relatively small compact unit. The fluid touching these many plates goes through a lot of shear, and whenever that happens, energy is lost through friction. Jul 29, 2007 the tesla turbine is abandoned except in some niches because of its bad efficiency. Comparison of a scroll, a screw, a roots, a piston.
In the first installment, we introduced tesla turbines, discussed which parts lent themselves well to 3d printing, and replaced the turbine housing with a markforged part. A wide variety of tesla turbine options are available to you, such as ac three phase. A tesla disc turbine and a flexible test rig have been designed and manufactured, and experimental results are presented. Tesla turbine cold steam engine theory 100% efficiency as claimed by nikola tesla. Nomenclature b spacing between disks m r o rotor radius. The top half of casings is removed, showing two rotors.
With disks close enough, there is no fundamental reason for its torque to be worse than a good bladed turbine. History of tesla turbines a tesla turbine is a quite unique technology. In this design, tesla fell short of what a modern turbine can do with steam. The tesla turbine testing plant at the edison waterside station, new york. Design and operation of tesla turbo machine a state of the. It makes a great free spinning hack disk part for a tesla turbine. Here is a picture of all of the parts and tools needed for the construction of your turbine. In the first patent, tesla introduced his basic bladeless design configured as a pump or compressor. Each rotor consists of 25 disks 38inch thick by 18 inch diameter.
It is specifically designed to pump cooling water for internal. An analysis of the performance and efficiency of the disc turbine is carried out. Design analysis of tesla microturbine operating on a lowboiling. Design and fabrication of portable water turbine mechanical.
I have spent alot of time and effort trying to make this easy to understand and easy for anyone out there to do. More applications are yet to be studied and developed. Due to the centrifugal forces caused by the rotating discs, water will spread on the entire surface of the tesla discs which is a quite large surface. Instead of using windpowered blades to rotate a shaft and generator, the tesla inspired design consists of an. If you like this instructable please vote for it in the epilog challenge coming up. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. Can i get the empirical formula or mathematical relation which used for the design of tesla turbine. Faced the theoretical and computational challenges associated with the feasibility of tesla. The turbine manufacturers usually supply five main parameters in their catalogues that are sufficient for installation requirements. It does not require blades, instead it just consists of disks. The design philosophy of the flexible test rig has been explained. The above description of the operation, i may add, is suggested by experience and observation, and is advanced merely for the purpose of explanation.
Treatment of a bladeless turbine designed by nikola tesla is given. There are numerous theoretical advantages, but the research on tesla turbines is pretty sparse. Design and experimental assessment of bladeless turbines. Design and computational analysis of 1 kw tesla turbine. Effects of swirling inlet flow on pressure recovery in. The tesla turbine is a bladeless turbine design patented by nikola tesla in 19. The tesla turbine is abandoned except in some niches because of its bad efficiency. This final year project presents the design, fabrication and testing of tesla bladeless turbine for a 500 w hydropower system. The efficiency of the preliminary turbine design was near 80% but it is believed that. Using the design and drafting software catia v5 the 2d and 3d view of the various components of the turbine are shown below. We report on the scaling properties and loss mechanisms of tesla turbines and provide design.
However, at very small outputs some superiority of bladeless turbines can be expected, fig. He theorized that the turbine could maintain 90% efficiency and that its simplicity in design and construction could lead to a revolution in power generation. Previous work tesla turbine was patented by nikola tesla in 1903. On the contrary tesla turbine consists of a set of. Design and scaling of microscale tesla turbines vedavalli g krishnan1 2vince romanin2 van p carey and michel m maharbiz1 1 eecs, university of california berkeley, ca. Calculation and design of exhaust noise mufflers for power engineering equipment igolkin a. Muffler design types fall into three basic categories. Full text of the design, construction and investigation of a tesla turbine see other formats the design. A preliminary design of a tesla turbine for pico hydro applications has been undertaken employing rices analytical method. The machine will then work rather like a turbine, absorbing the energy of kinetic momentum of the particles as they whirl, with continuously decreasing speed, to the exhaust.
The exhaust then leaves this turbine and powers the one directly to its right, this is then connected to the rear left turbine which then connects to the rear right turbine. Design and operation of tesla turbo machine a state of. Complete optimization of tesla turbine performance is beyond the scope of this paper. The modifications planned so that the turbine is made suitable for low head applications. The model data also served to estimate various specifications and power output of the future turbine. The design of a test rig and study of the performance and. The tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in 19. Jedrzejewski there is a number of possible applications where tesla turbines can be considered, including. The bowl solar collector, pumps energy inside the thermal battery, which then is fed to the carlson boiler, 20 bar steam is produced, fed into the tesla turbine, and at the exhaust of the turbine, another carlson heat exchanger is used as a condenser, to collapse the steam, and driving the turbine from both ends so to speak. Nikola tesla introduced this concept for radial bladeless turbines in 19, driven only by the viscous forces of the flow impinging on the rotating disks. Tesla turbine boundary layer sheartorque bladeless test rig. Pdf this project is to design and fabricate the tesla turbine with gas as.
Investigation on performance and implementation of tesla. 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. Design and fabrication of cmscale tesla turbines by vedavalli gomatam krishnan a dissertation submitted in partial satisfaction of the requirements for the degree of doctor of philosophy in engineering electrical engineering and computer sciences in the graduate division of the university of california, berkeley committee in charge. We are talking about water turbine so the materials, of which is the turbine going to made, cannot come under rust. Design and fabrication of cmscale tesla turbines spotlight.
Calculation and design of exhaust noise mufflers for power. Design, construction and testing of a tesla turbine. Design and analysis of tesla s bladeless turbine by venkat krishna 02086055 vikram reddy 02086058 rajeshwer 02086066l under the guidance of r p chowdary associate professor 2. A unique turbo jet using radial compressor discs similar to the tesla turbine to efficiently compress air for combustion. A flash boiler or traditional boiler rely on a closed heated vessel. The tesla turbine is a nonconventional promising technology that is yet to be fully researched and optimized.
In the second patent, tesla modified the basic design so it would work as a turbine. Micro turbines offer an efficient and clean solution to direct mechanical drive markets such as compression and airconditioning. One of the important components of tesla turbine is the disc. 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. Fluid entering through the inlets spirals inwards between disks, transferring power to the rotor. Like its bladed turbine counterparts, it converts moving fluids into energy. Understanding muffler design and sound absorption strategies.
The turbine design and generator mount allows for possibility of changing the generator or connecting to something else. In the same year kenneth hicks 11 published a patent with an. It had no blades or buckets but only smooth disk closely spaced on the rotor shaft. It is intended for a program, that is focused on providing electrical power. The tesla turbine is different in the sense that air and water do not strike a blade. Design and fabrication of cmscale tesla turbines by vedavalli gomatam krishnan doctor of philosophy in electrical engineering and computer science university of california, berkeley professor michel martin maharbiz, chair this dissertation discusses the design and scaling characteristics of tesla or socalled. The tesla turbine design is distinguished by its use of flat, corotating disks equally spaced and fixed along the rotor shaft which can be seen in figure 3. Theory and performance of tesla turbines by vincent domenic. On the altmann combustionforce turbine water is applied to the center of the rotating discs of the tesla compressor i. This report focuses on the design and development of a micro turbine driven by compressed nitrogen gas. The prototyping costs of the tesla turbine were correlated to the external rotor diameter of the expander. And finally, with the third patent, he made the changes necessary to operate the turbine as an internal combustion engine.
The fluid passes between the rotor disks and causes the rotor to spin. Abstract this project is to design and fabricate the tesla turbine with gas as working fluid and looking at the potential of. The bladeless wind turbine is completely enclosed in a relatively small compact unit. In operation, a tesla turbine is simply a turbomachine which is reasonably efficient at a fairly high rotational speed, dependent on several factors, including gap between the discs and disc diameter, but not too efficient to get moving. In this way the fluid moves in the longest path and changes in the. 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. Based on the analysis, we make recommendations for the design of 1 mm microscale tesla turbines. We have managed to power 4 turbines from one compressed air line but the results are variable from turbine to turbine for reasons we dont fully understand at the moment. The costs are correlated to the exhaust swept volume of the expander v. The water inlet point is effectively closed with a check valve, and water pressure has to exceed steam pressure to enter the system.
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 particularly good thing about tesla turbines is they are very easy to build. Under light load, the spiral taken by the fluid moving from the intake to the exhaust is a tight spiral, undergoing many rotations. The changes are made in the blade design to help reduce the losses during the exit of the water from the plates and also the exhaust outside the housing. The investigation yielded a design capable of generating 300 w under conditions of 20 m head and 2. Experimental stall torque measurements were conducted in two stages. Below is our original tesla turbine kit, unlike nikola teslas design our turbine is semitransparent, this allows you to actually see the discs rotating the discs will be either red or white. It is found to be useful in low power applications but lacks in performance in high power applications 8. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Keywords tesla turbine, viscous turbine, hydro turbine, power mems, microscale turbine. In addition, the tesla turbines torque is analyzed using computational fluid dynamics cfd software and found that the. A tesla turbine, by design, uses the frictional force between the flowing air and the stack of very thin, rotating plates of the rotor to spin the shaft.
The calculation domain was prepared by means of the software gambit 14. The exhaust note is in the design, not the material. For the tesla turbine, the same approach was applied, taking the developed prototype geometry as a reference manfrida et al. Learn about lease and loan options, warranties, ev incentives and more. Using rs steam for tesla turbine wood burning stoves. This observation led to the turbine s cylindrical design where, by the sheer shape of the turbine, the incoming fluid is forced to move in a spiral.
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