Results 31 to 40 of about 1,553 (163)
Large multistage axial turbines
Energy Procedia, 2017 Abstract 1. Though multistage axial turbines are being widely used since many decades for water steam expansion or in gas turbines, their use in ORCs has traditionally found limitations as a consequence of the choice of designing turbines with cantilever arrangements. 2. The choice of the cantilever arrangement is mainly related to the advantages of
Roberto Bini, Davide Colombo
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Axial Turbine Performance Enhancement by Specific Fluid Injection
Aerospace, 2023 Extensively used in modern gas turbine engines in various applications, ranging from aerospace, marine and terrestrial propulsion to power generation and gas pumping, the axial flow turbines have been continuously updated and are now capable of high ...
Razvan Edmond Nicoara +2 more
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Turbocharger Axial Turbines for High Transient Response, Part 2: Genetic Algorithm Development for Axial Turbine Optimisation [PDF]
Applied Sciences, 2019 In a previous paper, a preliminary design methodology was proposed for the design of an axial turbine, replacing a conventional radial turbine used in automotive turbochargers, to achieve improved transient response, due to the intrinsically lower moment of inertia.
Marco Berchiolli +3 more
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A Reliable Update of the Ainley and Mathieson Profile and Secondary Correlations
International Journal of Turbomachinery, Propulsion and Power, 2022 Empirical correlations are still fundamental in the modern design paradigm of axial turbines. Among these, the prominent Ainley and Mathieson correlation (Ainley D. and Mathieson G., 1951, “A Method of Performance Estimation for Axial-Flow Turbines,” ARC
Yumin Liu +3 more
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Energies, 2015 In this study, horizontally periodic large eddy simulations (LES) are utilized to study turbulent atmospheric boundary-layer flow over wind turbines in the far-downstream portion of a large wind farm where the wakes have merged and the flow is fully ...
Claire VerHulst, Charles Meneveau
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Evaluation of fatigue strength criteria for thick-walled nodular cast iron components from EN-GJS-400 under multiaxial load [PDF]
MATEC Web of Conferences, 2019 This paper discusses the quality of common methods for estimating the fatigue strength of EN-GJS-400-18-LT specimens under multiaxial stress. This is particularly important for the lightweight design of wind turbines.
Fass Markus +2 more
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Radial Mixing in an Axial Turbine [PDF]
Volume 1: Turbomachinery, 1994 The objective of this work was to examine radial mixing in an axial turbine from a number of different perspectives. These include: (1) its impact on the spanwise distributions of the force on the airfoils and the change in the fluid momentum as it passed between them, (2) the mixing coefficient distribution based on measured secondary flow velocities,
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Experimental Investigation of the Sensitivity of Forced Response to Cold Streaks in an Axial Turbine
International Journal of Turbomachinery, Propulsion and PowerIn turbomachinery, geometric variances of the blades, due to manufacturing tolerances, deterioration over a lifetime, or blade repair, can influence overall aerodynamic performance as well as aeroelastic behaviour.
Lennart Stania +2 more
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Flow-driven simulation on variation diameter of counter rotating wind turbines rotor
MATEC Web of Conferences, 2018 Wind turbines model in this paper developed from horizontal axis wind turbine propeller with single rotor (HAWT). This research aims to investigating the influence of front rotor diameter variation (D1) with rear rotor (D2) to the angular velocity ...
Littik Y. Fredrika +2 more
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Researches on Axial Flow Turbines
Transactions of the Japan Society of Mechanical Engineers, 1958 Ordinary, we research the characteristics of turbine blades with cascade tunnel, but we cannot expect from those researches the characteristics of turbine blades at moving state. Then, it is necessary to carry actual turbine testings to know the dynamical characteristics of turbine blades.
NAKAMURA, Kozo +2 more
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