The top half of casings is removed, showing two rotors. 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. This tesla cd turbine is based on the tesla turbine, which was invented by nikola tesla in the early 1900s. You can also use a garden hose as in the demo video to see how easy it is to make the cds spin. 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. In multipledisk turbines, high speed flow enters tangentially at the outer ra. Interestingly, using the word turbine to describe teslas invention seems a bit misleading. The basis of the theory is the navierstokes equations simplified by a. Pdf design and analysis of prototype tesla turbine for power. Theory and performance of tesla turbines by vincent domenic. It is another objective of the invention to be free of forgings, castings, and multi axis machining operations. Treatment of a bladeless turbine designed by nikola tesla is given. This i a super cool, high tech science project from green power science. Flow characteristics of multichannel tesla turbines.
A collection of older materials on tesla s disc turbine. Download pdf info publication number us20020182054a1. I have built tesla turbines using disks made of 6061 aluminum and others with disks made of 304 stainless steel. While it is relatively easy to build and operate a steamdriven tesla turbine, this is not the case with the high temperature gas turbine.
Almost any metal or other materials like plastic can be used, but stainless steel is my preferred material. Tesla turbine, turbine efficiency, power, torque, analytical theory, threedimensional flowfield. In this paper, 3dimensional model tesla turbine is established by using cfd software fluent to analyze the inner flow field in the given pressure and boundary conditions. D department of mechanical engineering, sveris college of engineering, pandharpur, solapur, india email. The same parametric trends in performance are compared to test data for a microscale tesla turbine with water as a working fluid. The development of tesla turbine is carried out to determine disc size, disk gap and number of disc base on theoretical calculation of tesla turbine. Each rotor consists of 25 disks 38inch thick by 18 inch diameter. First live action run of the tesla cd turbine ii with simple hispeed cd disc pack. Keywords tesla turbine, turbine efficiency, power, torque, analytical theory, threedimensional flowfield date received. Tesla turbine design and the theory of operation of an.
The tesla turbine is also known as the boundary layer turbine, cohesiontype turbine, and prandtl layer turbine after ludwig prandtl. A turbine, with discs of 92mm in diameter, central exhaust, plenum chamber, and swappable nozzles was constructed. Teslas pumps and motors were unique in that they only used discs, and took adv. The tesla turbine testing plant at the edison waterside station, new york. Tesla cd turbine ii with hispeed disc pack youtube. For understanding the altmann combustionforceturbine, you need to have basic knowledge about the following principles, listed below with their wikipedia links. This paper enlightens about the use of carbon fibers as a improvement material in the tesla turbine instead of conventionally used blade materials. Scribd is the worlds largest social reading and publishing site. The advances in tesla disc turbine up to 1991 can be found in rice. 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 is a bladeless centrifugal flow turbine expander patented by nikola tesla in 19. In a previous issue, i discussed how electricity can be generated by steam at temperatures lower than the boiling point of water by using a vacuum system. This book describes the concept of the disc turbine as originally patented by nicola tesla, and provides concept designs for modern versions of the engine, incorporating the disc turbine as a power unit for applications in automobiles and light aircraft, and also give descriptions of the original turbines and the prototype machines. Tesla disc turbine has many advantages compared with the traditional blade turbine, but there are few researches on fault diagnosis of tesla disc turbines for industrial dust blower.
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. Hybrid tesla pelton wheel turbine works on the principle of boundary layer flow of tesla turbine and the impulse force of pelton wheel turbine its primary objective is to minimize the mechanical losses and achieve better efficiency. Assembly tesla turbine bladeless disk turbine page 4 of 7. Instead of using windpowered blades to rotate a shaft and generator, the teslainspired design consists of. That invention was a turbine, known today as the tesla turbine, the boundary layer turbine or the flatdisk turbine. A tesla turbine seemed like the most interesting option, and this is the build. Momentum transfer between fluid and disc takes place due to fluid properties of. What improvements might be made to the basic disk turbine design. A theory of tesla disc turbines sayantan sengupta and abhijit guha abstract 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.
However, even if a tesla turbine does not ultimately emerge as a valid engineering product, the mathematical solution has scientific value since it would characterize a type of turbomachinery, viz. The steam enters at the periphery, and flows in spiral paths to exhaust at the center of the disks. This particular model of the cd turbine has no magnets, as well as no shafts, no bearings, no seals and no. In 19 nikola tesla patented a turbine without blades, that uses a series of rotating discs to. The data are presented in both graphical and numerical form. Tesla s bladeless disc turbine or friction turbine. The tesla turbine is different in the sense that air and water do not strike a blade. A tesla turbine is made of a set of parallel discs with nozzles, through which gas or. Pdf development of tesla turbine for green energy applications. But in 19, tesla received a patent for what he described as his most important invention. Design and computational analysis of 1 kw tesla turbine ijsrp. Bladeless turbine, boundary layer, disc turbine, tesla turbine, turbo machine. Exploratory calculations with the model indicate that turbine efficiencies exceeding 75% can be achieved by designing for optimal ranges of the governing dimensionless parameters.
The fluid dynamics of the rotating flow in a tesla disc. Us20110027069a1 hybrid teslapelton wheel disc turbine. The disc 2 with an innovative format, object of this patent, owns the characteristics of. It is a further objective of the invention to have the lowest cost possible and still maintain high durability. How to make a tesla turbine out of a cd wonderhowto.
It assumes the same vent diameter to disc diameter ratio as for teslas 9. The tesla turbine is one of the great unknown creations of nikola tesla, the famed inventor of the early 20th century. Millimeterscale, microelectromechanical systems gas. Design, construction and testing of a tesla turbine. Tesla s pumps and motors were unique in that they only used discs, and took adv. Other than its manufacturing simplicity and low cost, the tesla disc turbine is capable of.
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. Many other tesla turbines that ive seen online have larger ventilation holes in the sides. Aerodynamic skin adhesion effect resists fluid or gas flow between plates, resulting in energy transfer to the shaft. In principle, a tesla turbine also consist of a rotor and a housing.
The bladeless wind turbine is completely enclosed in a relatively small compact unit. If you like this instructable please vote for it in the epilog challenge coming up. The calculated flow efficiency of the investigated. Pdf optimization of tesla turbine using computational.
Design and computational analysis of 1 kw tesla turbine. This is video 1 in a series of videos which will show how to build your own tesla turbine for fun and experimentation. In order to operate the tesla turbine, simply attach an air or water hose to the inflow port and let air or water start flowing. The rotor consists of several identical discs mounted rotationally rigidly on a shaft and the discs are separated from each other by spacers of smaller diameter, so that the discs have a certain distance from each other. Ive been inspired by johnnyq90, so a massive thanks to him for publishing his videos and answering my questions. The program takes user input for disc diameter and gap width. I have spent alot of time and effort trying to make this easy to understand and easy for anyone out there to do.
The basis of the theory is the navierstokes equations simplified by a systematic order. Design and operation of tesla turbo machine a state of. 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. Disc thickness and spacing distance impacts on flow. Attaining high efficiency inne poses many tesla turbi. The main convolution behind this paper reveals about the mechanical efficiency to be improved. Hybrid teslapelton wheel turbine works on the principle of boundary layer flow of tesla turbine and the impulse force of pelton wheel turbine its primary objective is to minimize the mechanical losses and achieve better efficiency. Pdf the objective of the present research is to examines the potential benefits of tesla disk turbine tdt, a harmless mean of energy.
P, the design of a test rig and study of the performance and efficiency of a tesla disc turbine, proceedings of the institution of mechanical engineers. Rather than using blades and friction, the tesla turbine uses parallel, closely spaced disks that tap viscosity. Design analysis of tesla microturbine operating on a lowboiling. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. Turn your junk cds into something very interesting. 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. In the same year kenneth hicks 11 published a patent with an. I was going to cut the same radial pattern from the disks in the side panels, but i decided that wasnt necessary after a trial run with just the. Boundary layer tesla turbine page stanford university.