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  • Types of rotor construction

    2018-6-2 · Four different types of rotor construction have been used on large turbine-generator units on the CEGB system: The monobloc or integral rotor, in which the wheels and shaft are formed from a single-piece forging (Fig 1.104 (a)).; The built-up or shrink-on disc rotor…

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  • GER-3705 - GE Steam Turbine Design Philosophy and ...

    2021-4-7 · GER-3705 GE Power Generation GE Steam Turbine Design Philosophy and Technology Programs R.S. Couchman K.E. Robbins P. Schofield GE Company Schenectady, NY

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  • Factors Affecting Dental Air-Turbine Handpiece Bearing ...

    2012-7-1 · Air-turbine handpieces have been used for most dental cutting procedures for more than 50 years since the invention of the Borden Air rotor in 1957. 1 Although some improvements such as push-button bur release, swivel coupling, and fiber-optic illumination have made it more convenient for use, the main component, a turbine rotor supported by two miniature ball bearings, remains unchanged. 1 ...

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  • W&H - Dental Handpieces - What should you look for

    The rotor has an impeller powered by compressed air. Turbines reach an idle speed of up to 400,000 min-1. The working speed depends on the pressure exerted and is approximately half the idle speed - i.e. approx. 150,000 to 250,000 min-1. The maximum power of 10-26 W is also reached in this speed range.

    Get Price
  • DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE

    DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE USING FINITE ELEMENT METHOD AHMED ABDULHUSSEIN JABBAR1, A. K. RAI2, P. RAVINDER REEDY3 & MAHMOOD HASAN DAKHIL4 1,2,4Department of Mechanical ...

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  • A Numerical Study on Performance of Dental Air Turbine ...

    2017-9-1 · The rotor blades rotate at high speed, and the bur is applied to the teeth. Usually, high speed air-turbine dental handpieces operate at 200,000 to 400,000 revolutions per minute [5]. The main part of the dental air turbine is its high speed rotor head consisting of a casing with air inlet and outlet nozzles, impeller, spindle, chuck and ...

    Get Price
  • How a Gas Turbine Works

    2 天前 · The gas turbine can be used in combination with a steam turbine—in a combined-cycle power plant—to create power extremely efficiently. 1. Air-fuel mixture ignites: The gas turbine compresses air and mixes it with fuel that is then burned at extremely high temperatures, creating a hot gas. 2. Hot gas spins turbine blades:

    Get Price
  • Investigation of the tip leakage flow at turbine rotor ...

    2013-2-6 · Three component velocity fields of the TLF were obtained in a turbine test rig at a blade passing frequency of 930 Hz. The rotor blades were equipped with a squealer tip, and the TLF in the squealer cavity region was successfully measured. The measurement agrees well with calculated results showing gradients in the tip gap above the squealer ...

    Get Price
  • Power Turbine - an overview

    The power turbine studied is a two-stage design with cooling air bleeding from the gas generator compressor to the first stage disk rim. The power turbine has accumulated 183,400 operating hours since installation in the late 1970s. The power turbine inlet temperature at ISO base load according to the published information is 1240°F and the exhaust temperature is 849°F.

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  • Turbine engine 1 - SlideShare

    2014-2-19 · The war effort had brought about many advances in gas turbine technology. Advantages over reciprocating engines: 1- Increased reliability. 2- longer mean times between overhaul. 3- higher airspeeds. 4- Ease of operation at high altitudes. 5- high power to engine weight ratio. 2.

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  • Power Turbine - NASA

    2021-5-13 · Most modern passenger and military aircraft are powered by gas turbine engines, which are also called jet engines. There are several different types of gas turbine engines, but all turbine engines have some parts in common. All gas turbine engines have a power turbine located downstream of the burner to extract energy from the hot flow and turn the compressor.

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  • Factors Affecting Dental Air-Turbine Handpiece Bearing ...

    2012-7-1 · Air-turbine handpieces have been used for most dental cutting procedures for more than 50 years since the invention of the Borden Air rotor in 1957. 1 Although some improvements such as push-button bur release, swivel coupling, and fiber-optic illumination have made it more convenient for use, the main component, a turbine rotor supported by two miniature ball bearings, remains unchanged. 1 ...

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  • A practice manager’s guide to dental ... - Dentistry.co.uk

    2018-8-22 · Dental handpiece types – air turbine versus electrical. There are two systems for powering handpieces: air turbine and electrical. Air driven handpieces contain an air-driven spinning turbine to generate rotation, and are powered by compressed air. They can reach speeds of up to 400,000 rpm with a variable torque.

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  • GER-3705 - GE Steam Turbine Design Philosophy and ...

    2021-4-7 · GER-3705 GE Power Generation GE Steam Turbine Design Philosophy and Technology Programs R.S. Couchman K.E. Robbins P. Schofield GE Company Schenectady, NY

    Get Price
  • An Experimental Investigation on the Aeromechanics and ...

    2014-4-29 · turbines is around 0.08, indicated by Tong (2002) in ‘Wind Power Generation and Wind Turbine Design’. b) Wind turbine models The dual-rotor wind turbine (DRWT) models used for the present study was modified from conventional three-bladed horizontal axis wind turbine models by adding a second set of blades downwind. Figure 3 shows a schematic

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  • GER-2668 - Interturn Short-Circuit Detector for Turbine ...

    2021-4-7 · SUMMER POWER MEETING AND EHV CONFERENCE Los Angeles, California July 12-17,197O . INTERTURN SHORT-CIRCUIT DETECTOR FOR TURBINE-GENERATOR ROTOR WINDINGS D. R. Albright ABSTRACT An effective new method of detecting inter-turn short circuits on round rotor windings is described. ... The purpose of this paper is to describe the

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  • Parametrical Investigation of Turbine Stages With Open Tip ...

    2010-12-22 · Test data of three single-stage experimental turbines have been used to validate analytical predictions: • Highly loaded turbine stage with a pressure ratio π 0T = 3.2 and reaction degree ρ mean = 0.5. • Two turbines with a pressure ratio π 0T = 3.9. (One with high degree of reaction ρ mean = 0.55; the other with low degree of reaction ...

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  • A flywheel in a wind turbine rotor for inertia control ...

    2014-7-18 · However, with a flywheel in the rotor, wind turbines can contribute substantially to power system inertia and by doing so ease the task of frequency control by other power plants. In future, the design of the mechanical structure of such a flywheel wind turbine rotor has to be worked out in detail.

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  • Lulu LIU

    The turbine shared support structure is used widely in aeroengines, but theoretical and experimental research on a rotor-bearing system containing a shared turbine support structure is lacking.

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  • Turbine Section of Aircraft Gas Turbine Engine

    2 天前 · The sole purpose of the gas generator turbine is to absorb approximately 60 to 70 percent of the total pressure energy from the exhaust gases. Location of turbine section in aircraft gas turbine engine. turbine assembly consists of two basic elements: turbine inlet guide vanes and turbine blades. types of turbine blades: impulse, reaction and reaction-impulse. purpose of the turbine …

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  • SMART Wind Turbine Rotor: Data Analysis and Conclusions

    2014-2-7 · Develop procedures for characterizing an operating wind turbine which has active rotor control. Figure ES.1 The SMART rotor consists of three 9-meter blades with trailing edge flaps spanning 20% of each blade length. The photo inset is a closer look at the flaps on one blade.

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  • Micro dc motors for Endodontics - FAULHABER

    With a diameter of 15 mm and a length of just 24 mm, the 1524 series micro dc motors used in the handpieces of the endo system were easy to integrate. Thanks to their high power density, the motors are not only compact but also light. They weigh just 18 g, which is …

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  • SyncWind Power Ltd. — The Windflow™ 500 — We

    2021-8-8 · From 2013 to 2016, seven Windflow™ 33-500 turbines and one Windflow™ 45-500 were installed in Scotland’s Highlands and Islands. Despite the remote locations, all are grid-connected turbines feeding power into the local utility grid. Most of the turbines see complex terrain effects and high …

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  • Comparative Assessment of Direct Drive High

    2013-9-30 · Overarching turbine parameters used in all three design types. ..... 9 Table 2. Rotor, nacelle, and tower ... demonstration program for a full wind turbine system. The main purpose of this CRADA was to combine the NREL and AMSC resources to ... BOS costs for all turbine designs is the same in each power rating across all three drive train

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  • Renewables: K01 Floating wind turbine - Orcina

    2021-4-15 · turbine object, which we introduced as a new model object in OrcaFlex v10.3. The model (K01 Floating wind turbine.sim) is illustrated below. The turbine takes the form of a conventional three-bladed rotor, with variable-speed and variable blade-pitch control capabilities.

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  • Performance of the Wells Turbine With Variable Pitch

    1991-9-1 · The turbine is self-rectifying, i.e., produces an unidirectional time-averaged torque from a reciprocating flow. The paper describes an experimental investigation on the aerodynamic performance of a modified version of the Wells turbine, whose rotor blades can be set at varying angle (as in a Kaplan turbine) while the turbine is in motion.

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  • Interference of Wind Turbines with Different Yaw Angles

    2015-12-2 · American Institute of Aeronautics and Astronautics 5 power output is substantially higher, making cos 2 - relation is too optimistic especially at higher yaw angles. Instead, cos 3 - relation comes out to be a better approximate for the effect of yaw angle on the power reduction. Figure 5. Variation in the relative power output of the upstream turbine at various yaw angles for

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  • FAULHABER Drive Systems

    FAULHABER is a leading supplier in the area of high precision miniature and micro drive systems. FAULHABER offers the most extensive range of miniature and micro drive technologies available from a single source worldwide. From high performance DC …

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  • How Does A Turbofan Engine Work?

    2020-1-21 · The turbine is a series of airfoil-shaped blades that are very similar to the blades in the compressor. As the hot, high-speed air flows over the turbine blades, they extract energy from the air, spinning the turbine around in a circle, and turning the …

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  • Steam Turbine Basic Parts - Mechanical Engineering Site

    2021-1-3 · The steam turbine rotors must be designed with the most care as it is mostly the highly stressed component in the turbine. The design of a turbine rotor depends on the operating principle of the turbine. The Impulse Turbine, in which the pressure drops across the stationary blades. The stationary blades are mounted in the diaphragm and the ...

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  • Types of rotor construction

    2018-6-2 · Four different types of rotor construction have been used on large turbine-generator units on the CEGB system: The monobloc or integral rotor, in which the wheels and shaft are formed from a single-piece forging (Fig 1.104 (a)).; The built-up or shrink-on disc rotor, consisting of a forged steel shaft onto which separate forged steel discs are shrunk and keyed (Fig 1.104 (b)).

    Get Price
  • GER-3705 - GE Steam Turbine Design Philosophy and ...

    2021-4-7 · GER-3705 GE Power Generation GE Steam Turbine Design Philosophy and Technology Programs R.S. Couchman K.E. Robbins P. Schofield GE Company Schenectady, NY

    Get Price
  • Factors Affecting Dental Air-Turbine Handpiece Bearing ...

    2012-7-1 · Air-turbine handpieces have been used for most dental cutting procedures for more than 50 years since the invention of the Borden Air rotor in 1957. 1 Although some improvements such as push-button bur release, swivel coupling, and fiber-optic illumination have made it more convenient for use, the main component, a turbine rotor supported by two miniature ball bearings, remains unchanged. 1 ...

    Get Price
  • W&H - Dental Handpieces - What should you look for

    The rotor has an impeller powered by compressed air. Turbines reach an idle speed of up to 400,000 min-1. The working speed depends on the pressure exerted and is approximately half the idle speed - i.e. approx. 150,000 to 250,000 min-1. The maximum power of 10-26 W is also reached in this speed range.

    Get Price
  • DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE

    DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE USING FINITE ELEMENT METHOD AHMED ABDULHUSSEIN JABBAR1, A. K. RAI2, P. RAVINDER REEDY3 & MAHMOOD HASAN DAKHIL4 1,2,4Department of Mechanical ...

    Get Price
  • A Numerical Study on Performance of Dental Air Turbine ...

    2017-9-1 · The rotor blades rotate at high speed, and the bur is applied to the teeth. Usually, high speed air-turbine dental handpieces operate at 200,000 to 400,000 revolutions per minute [5]. The main part of the dental air turbine is its high speed rotor head consisting of a casing with air inlet and outlet nozzles, impeller, spindle, chuck and ...

    Get Price
  • How a Gas Turbine Works

    2 天前 · The gas turbine can be used in combination with a steam turbine—in a combined-cycle power plant—to create power extremely efficiently. 1. Air-fuel mixture ignites: The gas turbine compresses air and mixes it with fuel that is then burned at extremely high temperatures, creating a hot gas. 2. Hot gas spins turbine blades:

    Get Price
  • Investigation of the tip leakage flow at turbine rotor ...

    2013-2-6 · Three component velocity fields of the TLF were obtained in a turbine test rig at a blade passing frequency of 930 Hz. The rotor blades were equipped with a squealer tip, and the TLF in the squealer cavity region was successfully measured. The measurement agrees well with calculated results showing gradients in the tip gap above the squealer ...

    Get Price
  • Power Turbine - an overview

    The power turbine studied is a two-stage design with cooling air bleeding from the gas generator compressor to the first stage disk rim. The power turbine has accumulated 183,400 operating hours since installation in the late 1970s. The power turbine inlet temperature at ISO base load according to the published information is 1240°F and the exhaust temperature is 849°F.

    Get Price
  • Turbine engine 1 - SlideShare

    2014-2-19 · The war effort had brought about many advances in gas turbine technology. Advantages over reciprocating engines: 1- Increased reliability. 2- longer mean times between overhaul. 3- higher airspeeds. 4- Ease of operation at high altitudes. 5- high power to engine weight ratio. 2.

    Get Price
  • W&H - Alegra Dental Turbine handpieces

    The ideal position of the LED on the turbine head of the Alegra dental turbine handpieces with light guarantees optimal view and illumination of the treatment site. Integration of a generator in the coupling enables the use of these dental turbine handpieces with light on the turbine hose without using a power …

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  • W&H - Synea Dental Turbines

    Synea Turbines. High-end technology for excellent preparation results: Both of the Synea dental turbine lines are characterised. by high performance, optimal ergonomics and outstanding. value for money. Synea Vision is symbolic of innovations. such as the sterilizable 5x Ring LED+ and Synea Fusion.

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  • W&H - Synea Dental Turbines

    Synea Turbines. High-end technology for excellent preparation results: Both of the Synea dental turbine lines are characterised by high performance, optimal ergonomics and outstanding value for money. Synea Vision is symbolic of innovations such as the sterilizable 5x Ring LED+ and Synea Fusion promises top quality combined with unbeatable cost ...

    Get Price
  • Development of 1600°C-Class High-efficiency Gas

    2014-12-24 · 2014-12-24 · the turbine-side bearing, (c) an axial exhaust turbine that is best suited to the layout of a GTCC plant, and (d) a rotor structure that allows the transmission of the torque by bolt-jointing the torque pin-clipped disk with the compressor rotor and the curvic coupling-equipped disk with the turbine rotor. (2) Compressor

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  • SMART Wind Turbine Rotor: Data Analysis and Conclusions

    2014-2-7 · 2014-2-7 · Develop procedures for characterizing an operating wind turbine which has active rotor control. Figure ES.1 The SMART rotor consists of three 9-meter blades with trailing edge flaps spanning 20% of each blade length. The photo inset is a closer look at the flaps on one blade.

    Get Price
  • A Numerical Study on Performance of Dental Air Turbine ...

    via a micro rotor. The rotor blades rotate at high speed, and the bur is applied to the teeth. Usually, high speed air-tur-bine dental handpieces operate at 200,000 to 400,000 revo-lutions per minute [5]. The main part of the dental air turbine is its high speed rotor head consisting of a casing with air

    Get Price
  • DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE

    2016-6-10 · 2016-6-10 · DESIGN AND ANALYSIS OF GAS TURBINE ROTOR BLADE USING FINITE ELEMENT METHOD AHMED ABDULHUSSEIN JABBAR1, A. K. RAI2, P. RAVINDER REEDY3 & MAHMOOD HASAN DAKHIL4 1,2,4Department of Mechanical Engineering, SHIATS -DU, Allahabad, India 3Department Professor & Head of Mechanical Engineering.Chaitanya Bharathi Institute of …

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  • W&H - Dental Handpieces - What should you look for

    The rotor has an impeller powered by compressed air. Turbines reach an idle speed of up to 400,000 min-1. The working speed depends on the pressure exerted and is approximately half the idle speed - i.e. approx. 150,000 to 250,000 min-1. The maximum power of 10-26 W is also reached in this speed range.

    Get Price
  • Types of rotor construction

    2018-6-2 · 2018-6-2 · Four different types of rotor construction have been used on large turbine-generator units on the CEGB system: The monobloc or integral rotor, in which the wheels and shaft are formed from a single-piece forging (Fig 1.104 (a)).; The built-up or shrink-on disc rotor…

    Get Price
  • Power Turbine - an overview

    The power turbine studied is a two-stage design with cooling air bleeding from the gas generator compressor to the first stage disk rim. The power turbine has accumulated 183,400 operating hours since installation in the late 1970s. The power turbine inlet temperature at ISO base load according to the published information is 1240°F and the exhaust temperature is 849°F.

    Get Price
  • Woodpecker Dental Products at Best Price Online ...

    Buy Woodpecker Dental Products. Woodpecker, the biggest ultrasonic scaler manufacturer, owns a maximal production and consumption of ultrasonic scaler in the world.The export volume of LED curing light is also in the leading position. In the past 26 years, Woodpecker has been focused on researching, developing, selling dental equipment.

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  • Understanding Compressors - Types, Applications and ...

    2021-8-24 · Dental air compressors provide a source of clean compressed air to assist in the performance of dental procedures as well as to power pneumatically operated dental instruments such as drills or toothbrushes. Choosing the right dental air compressor, requires several considerations, including the horsepower and pressure required.

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  • Slip Rings - Standard In Stock & Custom Solutions -

    A slip ring assembly comprises of brush blocks, which are accurately harmonized and usually available as a set of a ring and a brush. The MOFLON slip rings are designed to endure harsh environmental conditions like acidic and salty media and extreme vibrations. Besides, our products guarantee a reliable operation of the whole equipment system.

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  • Wind energy in Brazil: an overview and perspectives under ...

    2019-3-2 · The first large wind turbine in Latin America was installed in 1992, in the archipelago of Fernando de Noronha (Northeast of Brazil), with nominal power of 75 KW (three blades and a 17-m diameter rotor), supplying around 10–20% of the local energy …

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  • Product Literature

    Model 378B11 is a 1/2 in (12 mm) prepolarized microphone and preamplifier high sensitivity system, with the capability of measuring very low amplitudes due to its low noise floor (16 dBA). This mated pair can measure sound pressure levels to 137 dB within a 3% distortion rating. New!

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  • The Most Important Maglev Applications

    2013-3-27 · The name maglev is derived from magnetic levitation. Magnetic levitation is a highly advanced technology. It has various uses. The common point in all applications is the lack of contact and thus no wear and friction. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. The magnetic levitation technology can be used as an efficient technology in ...

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  • Oyodental Dental Official Blog

    2019-12-26 · The gun or wand holder should keep these items secure, but allow easy placement and retrieval at the same time. Built-in radiometers are also featured in many base units. Gun Houses the light bulb (in almost all halogen types), fan (in most halogens and some LEDs), trigger, and portal for the tips. A gun should be comfortable to hold.

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  • Military and Commercial Technology: Talwar Class Guided ...

    2017-7-17 · The vessel's main gun is a forward-fitted AK-190. The 100mm gun incorporates stealth technology to reduce the radar signature of the ship. ... Power turbine is an axial 2-, 3-, 4- or 6-stage engine (depending on modification) ... The turbine start up is fulfilled by means of the rotor spinning with three AC electric starters of 30kW continuous ...

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  • 12 October 1976 - This Day in Aviation

    2020-10-12 · 12 October 1976: The Sikorsky S-72 Rotor Systems Research Aircraft (RSRA) made its first flight at Stratford, Connecticut. The S-72 was a hybrid aircraft built for the United States Army and the National Aeronautics and Space Administration. Its purpose was to serve as a flight test vehicle for various helicopter rotor configurations. The S-72 was … Continue reading 12 October 1976

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  • Big Reactors Mod 1.7.10 (Best Reactors, Turbines and ...

    2017-5-4 · Rotor Material. For each rotor block in the turbine made of either a Turbine Rotor Shaft and a Turbine Rotor Blade, a mass of 10 is added. Turbine Coil Material. The three values are always averaged together to give the resulting values for the entire turbine coil. A higher efficiency will always produce more power.

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