Results 11 to 20 of about 487 (88)
Journal of Engineering, 2010 The coupled treatment (conjugate numerical methodology) allows the simultaneous solution of the external flow (steady, two dimensional, compressible and turbulent flow) and conduction within the metal (steady, two dimensional) of gas turbine nozzle ...
AbdulKarim Ahmad Hassan +1 more
doaj +1 more source
A Straight-bladed Vertical Axis Wind Turbine with a Directed Guide Vane Row
Journal of Fluid Science and Technology, 2008 A straight-bladed vertical axis wind turbine with a directed guide vane row has been proposed in order to enhance its torque. The experimental study of the proposed wind turbine was carried out by a wind tunnel with an outlet diameter of 1.8m. The tested
Manabu TAKAO +4 more
doaj +1 more source
MATEC Web of Conferences, 2018 The purpose of this experiment is to know the influence of a single guide vane position and angle to the performance of a cross-flow wind turbine. The cross-flow wind turbine was positioned at the discharge outlet of a cooling tower model to harness the ...
Santoso Budi +1 more
doaj +1 more source
Study on vibration characteristics and stability of steam turbine vanes with large capacity
Nihon Kikai Gakkai ronbunshu, 2016 A vane used in a low pressure end of steam turbine is usually fixed to an inner shroud and an outer ring by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping ...
Yasutomo KANEKO +3 more
doaj +1 more source
Energies, 2022 This article presents a study on the performance characteristics of a Francis turbine operating with various guide vane openings to determine the best operating point based on unit quantities.
Megavath Vijay Kumar +8 more
doaj +1 more source
Study on damping characteristics of steam turbine hollow vane with damper
Nihon Kikai Gakkai ronbunshu, 2014 A vane used in a low pressure end of steam turbine is usually fixed to a shroud and a casing by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping, because the ...
Yasutomo KANEKO +3 more
doaj +1 more source
Energies, 2022 The present paper demonstrates a proof-of-concept by introducing a variable guide vane system in the draft tube of a high-head Francis model turbine. The aim is to examine the hydraulic performance of the turbine while mitigating the pressure pulsations ...
Jesline Joy +2 more
doaj +1 more source
Enhancing the Efficiency of the Savonius Hydro Turbine in Pipe Through Design Optimization and Computational Fluid Dynamics Flow Modeling [PDF]
Journal of Applied Fluid MechanicsThis work explores the performance improvement of a Savonius Hydro Turbine (SHT) installed inside a 4-inch pipeline by examining the combined effects of the guide-vane angle and central-shaft opening ratio were assessed through Computational Fluid ...
S. Nuyam +3 more
doaj +1 more source
Sediment wear of turbine guide vane before and after tungsten carbide treatment
Advances in Mechanical Engineering, 2022 This paper describes three-dimensional unsteady simulations of sand–water flow within a turbine passage. Sand abrasion of a movable guide vane made from ZG06Cr13Ni4Mo is tested before and after tungsten carbide spray-coating.
Xiaoyi Zhao +6 more
doaj +1 more source
Computation, 2021 Gas turbine performance is closely linked to the turbine inlet temperature, which is limited by the turbine guide vanes ability to withstand the massive thermal loads.
Sondre Norheim, Shokri Amzin
doaj +1 more source