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Optimization the shape of the Francis hydraulic turbine [PDF]
E3S Web of Conferences, 2020 The article presents one of the possible methods for optimizing the blade shape of a Francis radial-axial hydraulic turbine. The method for optimizing the shape of the turbine blade is based on the criterion of the maximum mechanical moment developed by ...
Kurir Valerij
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Design and testing of a contra-rotating tidal current turbine [PDF]
, 2005 A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
Clarke, J. A. +3 more
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Failure investigation of a Kaplan turbine blade [PDF]
Engineering Failure Analysis, 2019 In this paper, an uncommon failure of a Kaplan turbine blade has been analyzed. After the monitoring system detected a sudden increase in vibration levels, the turbine was inspected. The inspection showed that a large crack occurred on one blade starting from the leading-edge side root hole. Moreover, the tip of the blade was also found broken.
Zhang, Ming +4 more
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Turbine Blade Cooling System Optimization [PDF]
Journal of Turbomachinery, 2013 Designing high performance cooling systems suitable for preserving the service lifetime of nozzle guide vanes of turboshaft engines leads to significant aerodynamic losses. These losses jeopardize the performance of the whole engine. In the same time, a low efficiency cooling system may affect the costs of maintenance repair and overhaul of the engine ...
Frederic Philippe Jean-Jacques Pardo +5 more
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Journal of Marine Science and EngineeringIn the complex and harsh working environment of wind turbines, the horizontal axis wind turbine blade is increasingly confronted with the issue of surface roughening.
Yingjian Yang +7 more
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Computational Fluid Dynamic Analysis of a Vibrating Turbine Blade
International Journal of Rotating Machinery, 2012 This study presents the numerical fluid-structure interaction (FSI) modelling of a vibrating turbine blade using the commercial software ANSYS-12.1. The study has two major aims: (i) discussion of the current state of the art of modelling FSI in gas ...
Osama N. Alshroof +4 more
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Force Measurements on a VAWT Blade in Parked Conditions
Energies, 2017 The forces on a turbine at extreme wind conditions when the turbine is parked is one of the most important design cases for the survivability of a turbine.
Anders Goude, Morgan Rossander
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Investigation on the impact of design wind speed and control strategy on the performance of fixed-pitch variable-speed wind turbines [PDF]
, 2017 Wind turbine blade design optimization remains one of the fundamental research areas for modern wind turbine technology. The general design process for fixed-pitch variablespeed wind turbine blades assumes the rated wind speed as the design wind speed ...
Liu, Xiongwei +2 more
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Influence of blade number on performance of multistage hydraulic turbine in turbine mode
Energy Science & Engineering, 2022 Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability ...
Lihong Zhang +4 more
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Design and Finite Element Analysis of Mixed Aerofoil Wind Turbine Blades [PDF]
, 2011 Wind turbine technology is one of the rapid growth sectors of renewable energy all over the world. As a core component of a wind turbine, it is a common view that the design and manufacturing of rotor blades represent about 20% of the total investment of
Liu, Xiongwei +3 more
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