While it is relatively easy to build and operate a steamdriven tesla turbine, this is not the case with the high temperature gas turbine. 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. 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. The basis of the theory is the navierstokes equations simplified by a. The bladeless wind turbine is completely enclosed in a relatively small compact unit. Keywords tesla turbine, turbine efficiency, power, torque, analytical theory, threedimensional flowfield date received. 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 tesla turbine is a bladeless centrifugal flow turbine expander patented by nikola tesla in 19.
You can also use a garden hose as in the demo video to see how easy it is to make the cds spin. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. I have built tesla turbines using disks made of 6061 aluminum and others with disks made of 304 stainless steel. Pdf the objective of the present research is to examines the potential benefits of tesla disk turbine tdt, a harmless mean of energy. Design and computational analysis of 1 kw tesla turbine. Pdf development of tesla turbine for green energy applications. A collection of older materials on tesla s disc turbine.
Instead of using windpowered blades to rotate a shaft and generator, the teslainspired design consists of. 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. This tesla cd turbine is based on the tesla turbine, which was invented by nikola tesla in the early 1900s. 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. In the same year kenneth hicks 11 published a patent with an. Attaining high efficiency inne poses many tesla turbi. The top half of casings is removed, showing two rotors. But in 19, tesla received a patent for what he described as his most important invention. This particular model of the cd turbine has no magnets, as well as no shafts, no bearings, no seals and no. It is a further objective of the invention to have the lowest cost possible and still maintain high durability. It is not intended to be used for prolonged periods or to be permanently used. 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.
The tesla turbine testing plant at the edison waterside station, new york. A tesla turbine is made of a set of parallel discs with nozzles, through which gas or. The basis of the theory is the navierstokes equations simplified by a systematic order. Between 1906 and 1927 tesla made real progress optimizing the engine. 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. 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. Design and computational analysis of 1 kw tesla turbine ijsrp. Design and operation of tesla turbo machine a state of. The calculated flow efficiency of the investigated. Disc thickness and spacing distance impacts on flow.
Design, construction and testing of a tesla turbine. Scribd is the worlds largest social reading and publishing site. Almost any metal or other materials like plastic can be used, but stainless steel is my preferred material. 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. The tesla turbine is different in the sense that air and water do not strike a blade. Tesla s pumps and motors were unique in that they only used discs, and took adv. The tesla turbine, is a set of spinning disc, that rotates at high speed, and provide opportunity, to make a turbine generator for closed loop steam systems, perfect for use with solar energy systems. This paper enlightens about the use of carbon fibers as a improvement material in the tesla turbine instead of conventionally used blade materials. 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. D department of mechanical engineering, sveris college of engineering, pandharpur, solapur, india email. It assumes the same vent diameter to disc diameter ratio as for teslas 9. The steam enters at the periphery, and flows in spiral paths to exhaust at the center of the disks. 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. 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.
Teslas pumps and motors were unique in that they only used discs, and took adv. 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. Download pdf info publication number us20020182054a1. Momentum transfer between fluid and disc takes place due to fluid properties of. A tesla turbine seemed like the most interesting option, and this is the build. 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. Treatment of a bladeless turbine designed by nikola tesla is given. Many other tesla turbines that ive seen online have larger ventilation holes in the sides. The same parametric trends in performance are compared to test data for a microscale tesla turbine with water as a working fluid. The program takes user input for disc diameter and gap width. Pdf design and analysis of prototype tesla turbine for power. The advances in tesla disc turbine up to 1991 can be found in rice. It is another objective of the invention to be free of forgings, castings, and multi axis machining operations. 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.
Tesla cd turbine ii with hispeed disc pack youtube. Us20110027069a1 hybrid teslapelton wheel disc turbine. Interestingly, using the word turbine to describe teslas invention seems a bit misleading. Theory and performance of tesla turbines by vincent domenic. Tesla s bladeless disc turbine or friction turbine. Design analysis of tesla microturbine operating on a lowboiling. A turbine, with discs of 92mm in diameter, central exhaust, plenum chamber, and swappable nozzles was constructed.
The disc 2 with an innovative format, object of this patent, owns the characteristics of. For understanding the altmann combustionforceturbine, you need to have basic knowledge about the following principles, listed below with their wikipedia links. Each rotor consists of 25 disks 38inch thick by 18 inch diameter. I have spent alot of time and effort trying to make this easy to understand and easy for anyone out there to do. The tesla turbine is one of the great unknown creations of nikola tesla, the famed inventor of the early 20th century. Boundary layer tesla turbine page stanford university. Tesla turbine, turbine efficiency, power, torque, analytical theory, threedimensional flowfield. Tesla turbine design and the theory of operation of an. The data are presented in both graphical and numerical form. The main convolution behind this paper reveals about the mechanical efficiency to be improved. This i a super cool, high tech science project from green power science. Exploratory calculations with the model indicate that turbine efficiencies exceeding 75% can be achieved by designing for optimal ranges of the governing dimensionless parameters.
That invention was a turbine, known today as the tesla turbine, the boundary layer turbine or the flatdisk turbine. If you like this instructable please vote for it in the epilog challenge coming up. 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. 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. Other than its manufacturing simplicity and low cost, the tesla disc turbine is capable of. First live action run of the tesla cd turbine ii with simple hispeed cd disc pack. In multipledisk turbines, high speed flow enters tangentially at the outer ra. 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.
How to make a tesla turbine out of a cd wonderhowto. This is video 1 in a series of videos which will show how to build your own tesla turbine for fun and experimentation. The tesla turbine is also known as the boundary layer turbine, cohesiontype turbine, and prandtl layer turbine after ludwig prandtl. Assembly tesla turbine bladeless disk turbine page 4 of 7. Bladeless turbine, boundary layer, disc turbine, tesla turbine, turbo machine. What improvements might be made to the basic disk turbine design. Flow characteristics of multichannel tesla turbines. The fluid dynamics of the rotating flow in a tesla disc. Ive been inspired by johnnyq90, so a massive thanks to him for publishing his videos and answering my questions. Previous work tesla turbine was patented by nikola tesla in 1903. In principle, a tesla turbine also consist of a rotor and a housing. Pdf optimization of tesla turbine using computational. Millimeterscale, microelectromechanical systems gas. Rather than using blades and friction, the tesla turbine uses parallel, closely spaced disks that tap viscosity.
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. Aerodynamic skin adhesion effect resists fluid or gas flow between plates, resulting in energy transfer to the shaft. 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.