Results 281 to 290 of about 124,957 (333)
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Modern Physics Letters B, 2016
Graphene, the two-dimensional (2D) nanomaterial, draws interest of several researchers due to its many superior properties. It has extensive applications in numerous fields. A turbine is a hydraulic machine which extracts energy from a fluid and converts it into useful work.
D. K. Das, P. K. Swain, S. Sahoo
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Graphene, the two-dimensional (2D) nanomaterial, draws interest of several researchers due to its many superior properties. It has extensive applications in numerous fields. A turbine is a hydraulic machine which extracts energy from a fluid and converts it into useful work.
D. K. Das, P. K. Swain, S. Sahoo
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Borax Crystallization Kinetics in a Pitched‐Blade Turbine/Straight‐Blade Turbine Dual‐Impeller Crystallizer [PDF]
Chemical Engineering & Technology, 2018 AbstractThe influence of hydrodynamic conditions on crystallization kinetics and properties of borax crystals obtained in a dual‐impeller batch cooling crystallizer was investigated. The two impellers used, i.e., pitched‐ and straight‐blade turbines, were mounted on the same shaft.
Čelan, Antonija +2 more
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Turbine Blade Cooling: The Blade Temperature Distribution
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2006Air cooling of high-temperature gas turbines is a standard practice; the air first cools the blading by internal convection and then by external film cooling, after ejection through holes and slots in the blade surface. In some ‘conventional’ analyses of turbine blade cooling, a ‘standard blade’ is invoked, which has a uniform blade temperature equal ...
J. H. Horlock, L Torbidoni
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Concepts for adaptive wind turbine blades
2002 ASME Wind Energy Symposium, 2002Bend-twist coupling in wind turbine blades has been shown to reduce both fatigue and extreme operating loads, especially when applied in conjunction with a pitch-controlled rotor. This type of coupling has been used in other industries, implemented either through biased lay-ups of fiber-reinforced materials, or with swept wings.
Thomas D. Ashwill +5 more
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2019
Abstract In an electric power station, seven turbine blades out of 112 broke or cracked within 8 to 14 months after commencement of operation. The blades in question were all located on the last running wheel in the low pressure section of a 35,000 kW high pressure condensing turbine.
Friedrich Karl Naumann, Ferdinand Spies
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Abstract In an electric power station, seven turbine blades out of 112 broke or cracked within 8 to 14 months after commencement of operation. The blades in question were all located on the last running wheel in the low pressure section of a 35,000 kW high pressure condensing turbine.
Friedrich Karl Naumann, Ferdinand Spies
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Parallel Computation of Turbine Blade Clocking
International Journal of Turbo and Jet Engines, 1998This paper presents a numerical study of airfoil clocking of a six-row test turbine configuration with equal pitches. Since the rotor-stator interaction flow is highly unsteady, the numerical simulation of airfoil clocking requires the use of time marching methods, which can be computationally expensive.
Paul Cizmas, Daniel Dorney
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Journal of Fluids Engineering, 1940
Abstract This paper reviews the blading-design practice associated with modern high-pressure high-temperature steam turbines. The design problems encountered in the development of partial-admission impulse blading for topping units are described, as well as the current engineering practice employed in the manufacture of such blading. The
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Abstract This paper reviews the blading-design practice associated with modern high-pressure high-temperature steam turbines. The design problems encountered in the development of partial-admission impulse blading for topping units are described, as well as the current engineering practice employed in the manufacture of such blading. The
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2001
For a reduction of blade vibration amplitudes in airborne gas turbines special damper devices are used which usually are arranged between the blade platforms of neigboring blades. These dampers possess a cross section like a parabola or a circle and are formed out of sheet steel.
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For a reduction of blade vibration amplitudes in airborne gas turbines special damper devices are used which usually are arranged between the blade platforms of neigboring blades. These dampers possess a cross section like a parabola or a circle and are formed out of sheet steel.
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Journal of the Institution of Electrical Engineers, 1923
The paper is a review of the present position of the subject of steam turbine blading. Section (1) describes the causes and effects of corrosion and erosion. The most important materials in use are enumerated and compared. Section (2) deals with the form of the blade passage in impulse and reaction machines, and with the energy losses occurring in the ...
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The paper is a review of the present position of the subject of steam turbine blading. Section (1) describes the causes and effects of corrosion and erosion. The most important materials in use are enumerated and compared. Section (2) deals with the form of the blade passage in impulse and reaction machines, and with the energy losses occurring in the ...
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The Impact of Blade-to-Blade Flow Variability on Turbine Blade Cooling Performance
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2004The focus of this paper is the impact of manufacturing variability on turbine blade cooling flow and, subsequently, its impact on oxidation life. A simplified flow network model of the cooling air supply system and a row of blades is proposed. Using this simplified model, the controlling parameters which affect the distribution of cooling flow in a ...
Vince Sidwell, David Darmofal
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