Tesla is accelerating the worlds transition to sustainable energy with electric cars, solar and integrated renewable energy solutions for homes and businesses. In this research, analyses of rotor performance for incompressible flow are developed for different fluid profiles and fluidpath lengths. 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 results show that the theoretical limit of the isentropic efficiency is. Millimeterscale, microelectromechanical systems gas turbine. In tesla turbines, the fluid profile and the length of the fluid path inside the rotor control the pressure drop and momentum transfer. Walker and jenkins 1997 also provide a comprehensive but much briefer overview of wind energy. The tesla turbine is a nonconventional promising technology that is yet to be fully researched and optimized. Experimental stall torque measurements were conducted in two stages. The basis of the theory is the navierstokes equations simplified by a systematic order of magnitude.
The 1 cm 3 rotor diameter turbine presented here is, to our knowledge, the smallest tesla turbine reported, with an unloaded peak power of 45 mw 12 ccsec flow, 17% efficiency and a peak. First, frictional losses in the nozzle and at the rotor turbine. Maybe, one day, this invention created more than 110 years ago could completely change the way we produce safe drinking water, power or movement. Theory for calculate, organic rankine cycle, using heat source attemperatures 90, 80 and 70 c respectively, calculating by approximately from the experiment and comparison with ph and ts diagram of a working fluid. The turbine is supplied on a aluminium base for display and demonstration purposes connected using two m6 hex cap screws. The theory of operation of a tesla turbine relies on boundary layer effects, which makes for good efficiency for the tesla turbine. The goal of this thesis is not to optimize the performance of the tesla turbine, but to compare its performance with various working fluids. Tesla s mother, duka mandic 18221892, whose father was also an orthodox priest, had a talent for making home craft tools and mechanical. Design and offdesign analysis of a tesla turbine utilizing co2 as. The tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in 19. Why nikola tesla 3 6 9 theory is called the key to universe. With his works on alternative current, including many patents on generators, transformers and turbines, he. Nikola tesla was born the 10th of july 1856 in a serbian village of the austrian empire in todays croatiaanddiedthe7th ofjanuary1943intheunitedstates1.
Pdf challenging the versatility of the tesla turbine. Tesla turbine design and the theory of operation of an. The results of this analysis are then compared to two sets of test data. Millimeterscale, microelectromechanical systems gas.
The tesla steam turbine scientific american september 30th, 1911 tesla s new monarch of machines new york herald oct. The fluid dynamics of the rotating flow in a tesla disc turbine. In this paper a theory is described that gives the threedimensional fields of velocity and pressure in the tesla disc turbine. Theoretical and experimental analyses of a turbine generator assembly utilizing compressed air, steam and water as the working fluids were. 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. All major turbine components are shown and the actual rotorhousing clearance given. The experiments using twotypes tesla turbine types, the first typeis smooth disks, the. Nikola tesla was born an ethnic serb in the village of smiljan, within the military frontier, in the austrian empire present day croatia, on 10 july o. Sep 01, 2017 the tesla turbine is an original expander working on the principle of torque transmission by wall shear stress. 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. Tesla turbine project gutenberg selfpublishing ebooks. In a pump configuration, the fluid enters axially near the centre. The fluid dynamics of the rotating flow in a tesla disc. However, instead of using angled blades to rotate a shaft, it uses smooth, parallel discs.
Is our issue of november 10, 1911, we gave n short account. A revised tesla turbine concept for orc applications. In an article written in 1912, tesla showed off a small engine that produced 110 hp and was the size of a derby hat. Nikola teslas turbine secrets global open source project. Tesla coil design, construction and operation guide. Pdf the fluid dynamics of the rotating flow in a tesla. The steam produced in this reaction goes through the tesla turbine, in order to be condensed into distilled water when it comes out on the other side of the turbine. The tesla rotor consists of parallel discs on a shaft, spaced apart a distance equal to or slightly greater than their thickness. Tesla turbine previous work tesla turbine performance has been characterized by many researchers. Several experiments have been carried and all that concluded the same result of tesla turbine outperforming the 2. A schematic of tesla turbine flow theory is shown in figure 4. A tesla turbine is a bladeless centripetal flow turbine patented by nikola tesla in the early 20th century. Tesla s original design was meant to replace the then inefficient fullscale turbines. 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 blades shaft housing discs prior art date 20001214 legal status the legal status is an assumption and is not a legal conclusion.
This thesis discusses the design analysis of the tesla turbine or so called flat. It is not an exaggeration to say he was a visionary who changed the world. In tesla s fullsized turbine, these discs were of hardened steel. Jan 01, 20 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. Walk around a block 3 times before entering a building.
The turbine design and generator mount allows for possibility of changing the generator or connecting to something else. This analysis allows a parametric study of turbine performance based on several nondimensional parameters. The design of a 1 kw tesla turbine was carried using iterative process for head and discharge for main dimensions of the turbine. A tesla turbine is made of a set of parallel discs with nozzles. Design analysis of tesla microturbine operating on a. The basis of the theory is the navierstokes equations simplified by a systematic order. Tesla turbine, axial flow bladed turbine, flow efficiency, cfd calculations, rans model. Tesla submitted the patent for the valvular conduit and pde in 1916. The fabricated tesla turbine was run at a very less flow rate of 0. Study and design of bladeless tesla turbine research india.
Then we oveview the numerical solution for previously simpli. The applications of the principle that this turbine uses are wide and the future will undertake. The presented theory also gives the torque and power output which have been verified by comparing the theoretical predictions with recent experimental measurements. Industrial tesla turbines may be used in hybrid cars or in commercial applications. Indeed, the tesla turbine can theoretically be adapted to different materials and purposes, including mixtures with solids, gases, liquids, as well as viscous fluids, nonviscous fluids, and other types of fluids. Wind turbine blade analysis using the blade element momentum. There is a lot of research and development carried out to bring this to the people. Markforged designing a 3d printed tesla turbine part 1. The principle demonstrated for air expanders at lab scale has some attractive features when applied to orc expanders. Tesla turbine, turbine efficiency, power, torque, analytical theory.
Design and computational analysis of 1 kw tesla turbine. Implementing tesla turbine as a renewable energy resource in this way the tesla turbine can be used in the wind turbine applications and particularly tesla turbine will be very beneficial in the geothermal power plants where hot steam from the earth is used as a fuel. In teslas time efficiency of classic turbines was low, because aerodynamic theory needed to. International journal of engineering trends and technology. 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. Theoretical and experimental research performed on the. May 17, 2019 tesla type turbines can also be referred to as multipledisk, friction, shearforce, or boundary layer turbomachinery. An efficient tesla turbine requires close spacing of the disks. Tesla submitted the tesla turbine, rotary engine, vacuum pump and compressor in 1909. These machines use the same principle of fluid propulsion. The turbine geometry, results from stress and flow calculations performed on the turbine rotor and assembly, using the simulation modules and solidworks flow simulation program are.
Fluid entering through the inlets spirals inwards between disks, transferring power to the rotor shaft. The tesla turbine is also known as the boundary layer turbine, cohesiontype turbine, and prandtl layer turbine after ludwig prandtl because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. 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. In this paper we present background, theory, fabrication and test results of our turbines. Tesla turbine, boundary layer turbine, rotating machinery 1. A tesla turbine is a reversible turbomachine therefore it can be used as pump. Prior to 2006, tesla turbine was not commercially used. This document summarizes the development of an integral perturbation solution of the equations governing momentum transport in microchannels between disks of multipledisk drag turbines such as the tesla turbine. However, research over the years on various scaled designs of the tesla turbine has shown that it is most.
As can be seen in figure 4, there is nothing complicated about the way a tesla turbine works. Complete optimization of tesla turbine performance is beyond the scope of this paper. The basis of the theory is the navierstokes equations simplified by a. Disc thickness and spacing distance impacts on flow. The results are further compared to computational fluid dynamics cfd. Shaft speed measurements were taken with an optical laser tachometer and tesla turbine stall torque was measured using a spring force gauge. The tesla turbine a solution looking for the right problem. Two methods were chosen to model tesla turbine stall.
Pdf design and analysis of prototype tesla turbine for. Also, the flow in the turbine could be reversed into a pump, so as to preserve the disks from cavitation issues that usually affect. Previous work tesla turbine was patented by nikola tesla in 1903. 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. Inordertosolvethemanalitically,weneglectnonlinearterms. Construction and designing the basic design of the new turbine is similar to the conventional tesla turbine with some. At the lowhead and lowflow region, the tesla cmscale turbine operating range is superimposed. It is used to pump fluids that are abrasive, viscous, contain solids or are difficult to handle with other pumps. Attaining high efficiency inne poses many tesla turbi. Tesla turbine is much easier compared to the conventional turbines. 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.
Theoretical and experimental analyses of a turbine generator assembly utilizing compressed air, saturated steam and water as the working fluids were performed. On the other hand, tesla pump has been commercially available since 1982. More applications are yet to be studied and developed. Also, the turbine is unaffected by the quality of the fluid, thus can be used with fluids containing particulates. Figure 4 schematic of fluid flow through the tesla turbine. It introduces the operating principle of the tesla turbine, which was invented by engineer nikola tesla, a turbine. The concept of tesla turbine is used as a blood pump and gave good results.
Assessment of tesla turbine performance for small scale. Its working principle is the combination of the principles of both these type of turbines i. Theory and performance of tesla turbines by vincent domenic. In this theoretical design of tesla turbine is a nonconventional bladeless turbine it works on the principle of viscous boundary layer concepts. In the present article, a mathematical theory for the flow field within a tesla disc turbine has.
Theoretical and experimental research performed on the tesla. Tesla turbine, which was invented by engineer nikola tesla, a turbine which uses discs instead of blades, mounted on a shaft at a small distance between them. 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. Tesla turbine torque modeling for construction of a dynamometer.
Sep 29, 2019 one of his most floated theory is tesla 3 6 9 number theory. Pdf the fluid dynamics of the rotating flow in a tesla disc. Theory and simulation basic operation of tesla turbines in tesla turbines figure 1, right, the adhesion and. As a famous saying goes the greatest minds are always curious, goes well on nikola tesla. Pdf development of tesla turbine for green energy applications. It was invented and patented by nikola tesla on the 21st october 1909 at the united states patent office from experiments done in england. The results of this analysis are then compared to two sets of test data published in previous work and by other projects. Tesla did countless mysterious experiments, but he was a whole other mystery on his own.
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