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. Researching a shockwave tesla turbine a thermopneumatic tesla turbine locomotive. 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 pros and cons of tesla turbines are discussed in this article, as are those of the tesla pump. Previous article how a slotted disk turbine engine works. Design and operation of tesla turbo machine a state of.
The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. Cd tesla turbine make a tesla turbine out of cd dvd platters. So, when jet of fluid passes through the disk,dueto adhesion the disk will rotate. Utility model patent for a hybrid turbine that consists in a tesla turbine improved with the replacement partial or total of its smooth discs by innovative discs called pelton type discs 2. More applications are yet to be studied and developed. Continuously printed since 1988, this is the bestseller of the famous tesla technology series from high voltage press. The tesla turbine is a simple device invented and patented by nikola tesla that uses flat plates instead of buckets or vanes on the rotors. Design and operation of tesla turbo machine a state of the. Pdf the objective of the present research is to examines the potential benefits of tesla disk turbine tdt, a harmless mean of energy. Flow characteristics of multichannel tesla turbines. Disc thickness and spacing distance impacts on flow. The disc 2 with an innovative format, object of this patent, owns the characteristics of. Nikola tesla s disk turbine, which is said to approach the ideal rotary heat engine, can be viewed as an inexpensive alternative to the bladed turbine.
Build a 15,000 rpm tesla turbine using hard drive platters. Fluid entering through the inlets spirals inwards between disks, transferring power to the rotor shaft. In the same year kenneth hicks 11 published a patent with an. Mar 10, 2017 almost any metal or other materials like plastic can be used, but stainless steel is my preferred material.
Several experiments have been carried and all that concluded the same result of tesla turbine outperforming the 2. After all, if a disk is perfectly smooth and has no blades, vanes or buckets to catch the fluid, logic suggests that the fluid will simply flow over the disk, leaving the disk motionless. A micro tesla turbine for power generation from low pressure heads and evaporation driven flows vedavalli g. 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. Energy harvesting by a novel substitution for expansion valves. A tesla disc turbine and a flexible test rig have been designed and manufactured, and experimental results are presented. Tesla turbines are made out of a series of thin disks attached to a central rotor. Key points closed loop ideal for organic rankine cycle systems hybrid turbine using tesla technology and impulse turbine technology to improve efficiency. Experimental stall torque measurements were conducted in two stages. Almost any metal or other materials like plastic can be used, but stainless steel is my preferred material. If you do use high pressures please understand the risks and take the appropriate safety precautions. They offer an attractive substitution for small and micro conventional bladed turbines due to two major advantages.
Disk turbine, tesla coil, highfrequency lighting, magnifying. 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 being demonstrated in practice that each single disk of the rotor is capable of performing as much work as a whole bucketwheel. A turbine casing surrounds the disks with a flow pressure port. The theory of operation of a tesla turbine relies on boundary layer effects, which makes for good efficiency for the tesla turbine. Us20020182054a1 us10017,8 us1781a us2002182054a1 us 20020182054 a1 us20020182054 a1 us 20020182054a1 us 1781 a us1781 a us 1781a us 2002182054 a1 us2002182054 a1 us 2002182054a1 authority us united states prior art keywords rotor plurality blades shaft housing prior art date 20001214 legal status the legal status is an assumption and is not a legal conclusion. But there are different design different capacity and different types of blades for hydraulic, wind, steam turbine. A tesla turbine is made of a set of parallel discs with nozzles, through. But in 19, tesla received a patent for what he described as his most important invention.
Interestingly, using the word turbine to describe teslas invention seems a bit misleading. Tesla was denied a patent for a transmission he designed using his pump and turbine. This tesla cd turbine is based on the tesla turbine, which was invented by nikola tesla in the early 1900s. Tesla turbine bladeless disk turbine page 1 of 7 building a. Tags motor vehicles bladeless physics project science tesla turbine. Design analysis of tesla microturbine operating on a lowboiling. Nikola tesla is famous for the tesla coil, but another of his inventions is the subject of this book and had nothing to do with electricity, other than as a possible means of generating it. Complete optimization of tesla turbine performance is beyond the scope of this paper. In this paper,the development is carried out to determine disc size, disk gap and number of disc base on theoretical calculation of tesla turbine. 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. Apr 09, 2008 make a tesla turbine blade out of compact disks or dvd for free energy devices. The steam enters at the periphery, and flows in spiral paths to exhaust at the center of the disks.
Assembly tesla turbine bladeless disk turbine page 4 of 7. He also concentrated on the disk with ceramic and catalyst coatings. At the lowhead and lowflow region, the tesla cmscale turbine operating range is superimposed. In 2006 christopher brewer and lavina 06 patented a conical turbine design, which is the optimized design of the traditional tesla bladeless. The basis of the theory is the navierstokes equations simplified by a systematic order of magnitude analysis. Previous work tesla turbine was patented by nikola tesla in 1903. In multipledisk turbines, high speed flow enters tangentially at the outer ra. So, when jet of fluid passes through the disk,dueto adhesion the. An efficient tesla turbine requires close spacing of the disks. Tesla turbine turbine take low pressure input 2 bar to 8 bar from the inlet and passed over three turbine disk such that the air entry is radial where as air exit is axial thereby creating a reaction that makes the turbine disk and there by the turbine shaft to rotate at high speed. Tesla pump was patented in 1909 which uses smooth rotating disc on volute casing. That invention was a turbine, known today as the tesla turbine, the boundary layer turbine or the flatdisk turbine. Tesla turbine is an unconventional turbine that uses fluid properties such as boundary layer and adhesion of fluid on series of smooth disks keyed to a shaft.
The tesla disc turbine paperback january 1, 2001 by w. With the bladeless tesla turbine this is not a danger because it will not explode. The tesla turbine is one of the great unknown creations of nikola tesla, the famed inventor of the early 20th century. Though many of teslas other inventions, like the alternating current induction motor and power transmission systems, remain prominent in society, the tesla turbine has languished in obscurity for nearly a century. The bladeless wind turbine is completely enclosed in a relatively small compact unit. Consider a small element of area a on the disk at distance x from the centre of the disk and angle. Here are teslas suppressed inventions economically published all in one place in clear english and 42 illustrations. Design and fabrication of cmscale tesla turbines vedavalli krishnan electrical engineering and computer sciences. Pdf development of tesla turbine for green energy applications.
Nikola teslas disk turbine, which is said to approach the ideal rotary heat engine, can be viewed as an inexpensive alternative to the bladed turbine. This page is designed to provide a thorough understanding of the principles of operation of the tesla bladeless disk boundary layer turbine engines and pumps. 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. The tesla turbine is different in the sense that air and water do not strike a blade. Exhaust holes on each disk are placed as close to the center shaft as possible. Instead of using windpowered blades to rotate a shaft and generator, the teslainspired design consists of. In the present article, a mathematical theory for the flow field within a tesla disc turbine has been formulated in the appropriate cylindrical coordinate system. The hybrid teslapelton 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 basis of the theory is the navierstokes equations simplified by a systematic order. Theory and performance of tesla turbines by vincent domenic romanin. The tesla turbine testing plant at the edison waterside station, new york.
Design and computational analysis of 1 kw tesla turbine. In 1910 nikola tesla has invented a rotary disc turbine which can use to develop power from air, water, steam, or mixture of it. Two methods were chosen to model tesla turbine stall. Improvement in mechanical efficiency in tesla turbine by. Each rotor consists of 25 disks 38inch thick by 18 inch diameter. The power of a turbine is given by its torque multiplied by its angular velocity. Industrial tesla turbines may be used in hybrid cars or in commercial applications.
A theory of tesla disc turbines sayantan sengupta, abhijit. Us20110027069a1 hybrid teslapelton wheel disc turbine. Make a tesla turbine blade out of compact disks or dvd for free energy devices. Shaft speed measurements were taken with an optical laser tachometer and tesla turbine stall torque was measured using a spring force gauge. The particularly good thing about tesla turbines is they are very easy to build.
Request pdf a theory of tesla disc turbines in the present article, a mathematical theory for the flow field within a tesla disc turbine has been formulated in the appropriate cylindrical. Multipledisk teslatype drag turbines rely on a mechanism of energy transfer. 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 present utility model patent has the objective to improve the so called disk turbine or tesla turbine with an innovative change, based in the pelton wheel, that adds more torque to become viable its use, and to improve its efficiency in such applications that require the drive through power to be supplied by a shaft and demand a high torque, such as electric generators, high speed drill. The fluid touching these many plates goes through a lot of shear, and whenever that happens, energy is lost through friction. Here are tesla s suppressed inventions economically published all in one place in clear english and 42 illustrations. Boundary layer tesla turbine page stanford university. Millimeterscale, microelectromechanical systems gas. This analysis allows a parametric study of turbine. I have built tesla turbines using disks made of 6061 aluminum and others with disks made of 304 stainless steel. If it does go critical, as has been documented in tests at 85,000 rpm, the failed component will not explode but implode into tiny pieces which are ejected through the exhaust while the undamaged components continue to provide thrust to keep you airborne. Yet power plants use this very design to pump fly ash through a 21 stage vacumn system, 14 inch dia. Performance evaluation of low pressure energy recovery. Jan 05, 2008 disk steam turbine on a pressure cooker.
In this study, the effects of two influential geometrical parameters, disc thickness and disc spacing distance, on the. An analysis of the performance and efficiency of the disc turbine is. The croatian born inventor and engineer nikola tesla. Many other tesla turbines that ive seen online have larger ventilation holes in the sides. Design and computational analysis of 1 kw tesla turbine ijsrp.
Tesla turbine is best suited for low power generation spectrum or where primary cost is critical or where fluid properties hinder the performance of conventional turbine. Design and offdesign analysis of a tesla turbine utilizing co2 as. If you do use the turbine for this function, use at your own risk. It is not intended to be used for prolonged periods or to be permanently used. As the disks spin, the spirals become tighter, which increases rate of. This was his disc turbine for which a british patent, which also covered a compressor variant, was granted in 1910. The flat plates use the principles of adhesion and viscosity in order to turn the shaft. Tesla turbine academic dictionaries and encyclopedias. Tesla turbine design and the theory of operation of an. Not only does the rotor of a tesla turbine spin it spins rapidly. Theory and performance of tesla turbines by vincent domenic. In this study, tesla turbine tt is introduced as a new candidate for.
The turbine has been tested at 150psi with compressed air. Interestingly, using the word turbine to describe tesla s invention seems a bit misleading. The tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in 19. Teslas pumps and motors were unique in that they only used discs, and took advantage of the boundary layer effect. Diy tesla turbine from a hard disk the green optimistic. Nikola tesla, on his construction of the turbine itself, as well as his future plans for it. Pdf design and analysis of prototype tesla turbine for power. The top half of casings is removed, showing two rotors.
That invention was a turbine, known today as the tesla turbine, the boundary layer turbine or the flat disk turbine. It consists simply of multiple shaft mounted disks suspended upon bearings which position the rotor system within a cylindrical casing. May 07, 2010 the bladeless wind turbine is completely enclosed in a relatively small compact unit. The calculated flow efficiency of the investigated. Tesla engine builders association debunking the debunker.
Instead of using windpowered blades to rotate a shaft and generator, the tesla inspired design consists of an. The tesla turbine is a nonconventional promising technology that is yet to be fully researched and optimized. Thats because most people think of a turbine as a shaft with blades like fan blades attached to it. 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.
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