Results 11 to 20 of about 1,553 (163)

Validation of the Axial Thrust Estimation Method for Radial Turbomachines

open access: yesInternational Journal of Rotating Machinery, 2021
The fast preliminary design and safe operation of turbomachines require a simple and accurate prediction of axial thrust. An underestimation of these forces may result in undersized bearings that can easily overload and suffer damage.
Jonna Tiainen   +5 more
doaj   +1 more source

Internal Flow Characteristics of Novel Turbine Performance Enhancement Method through Specific Fluid Injection

open access: yesApplied Sciences, 2023
Gas turbine engines are an essential component for many industries, such as aerospace, marine propulsion, energy generation, etc., with modern engines capable of achieving high powers, efficiencies and reliability.
Razvan Edmond Nicoara   +2 more
doaj   +1 more source

Design and numerical study of turbines operating with MDM as working fluid

open access: yesOpen Engineering, 2015
Design processes and numerical simulations have been presented for a few cases of turbines designated to work in ORC systems. The chosen working fluid isMDM.
Klonowicz Piotr   +5 more
doaj   +1 more source

Cooling of Steam Turbine Exhaust Hood and Last Stage Blade [PDF]

open access: yesMATEC Web of Conferences, 2023
This paper describes a novel semi-numerical method of water droplets path lines calculation in steam turbine axial exhaust hood 2D space. The axial velocity profile of steam as well as droplets evaporation are taken into account.
Hoznedl Michal   +5 more
doaj   +1 more source

Designing and updating the flow part of axial and radial-axial turbines through mathematical modeling

open access: yesOpen Engineering, 2015
The paper describes an algorithm for the design of axial and radial-axial type turbines. The algorithm is based on using mathematical models of various levels of complexity – from 1D to 3D.
Rusanov Andrey   +2 more
doaj   +1 more source

Experimental Research on the Flow in the Steam Turbine Axial Exhaust Hood [PDF]

open access: yesEPJ Web of Conferences, 2022
There is the still remaining task to increase the efficiency of power plants and steam turbines. One possibility to increase the thermodynamic efficiency is to apply a suitable exhaust hood.
Tupy David, Slama Vaclav, Kalista Robert
doaj   +1 more source

Selection of Parameters for 3D Finite-volume Mesh for CFD Simulation of Axial Turbines

open access: yesMATEC Web of Conferences, 2018
This article describes the second part of the global work done by the authors aimed at finding the best settings for a numerical model for calculations of axial uncooled turbines using the RANS approach.
Popov Grigorii   +5 more
doaj   +1 more source

Rotors of Vertical-Axial Wind Turbines Assembled in Bearings and Aerodynamic Characteristics of a Blade with Unclosed Wing Profile

open access: yesManagement Systems in Production Engineering, 2022
In world practice, traditional blades used in high-speed wind turbines, both horizontal-axial and vertical-axial, have a wing-shaped profile. However, for horizontal-axial wind turbines, blades with such a profile have a fairly narrow range of operating ...
Panda Anton   +3 more
doaj   +1 more source

State-of-the-art of MW-level capacity oceanic current turbines

open access: yesNonlinear Engineering, 2020
Marine hydrokinetic turbines of MW-level capacity for harvesting oceanic currents are here reviewed. The best design is 3-blades, open rotor, axial flow turbines, of similar design philosophy to wind turbines, which are anchored to the ocean floor.
Boretti Alberto
doaj   +1 more source

Hydrodynamic Performance and Flow Field Characteristics of Tidal Current Energy Turbine with and without Winglets

open access: yesJournal of Marine Science and Engineering, 2023
In order to gain a more comprehensive understanding of the influence of winglets on the hydrodynamic performance and flow field characteristics of tidal current energy turbines, two different shapes of winglets are designed, and numerical simulation ...
Yi Wang   +3 more
doaj   +1 more source

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