نتایج جستجو برای: kinetic turbine

تعداد نتایج: 108144  

Journal: :Wind Energy 2021

Rain erosion on the leading edge of wind turbine blades is an intricate engineering challenge for industry. Based energetic approach, this work proposes a methodology to characterise capacity raindrop impacts onto blades. This can be used with meteorological data from public institutions or direct measurements at locations. The characterisation analysed using accumulative and per impact erosive...

Journal: :international journal of energy and environmental engineering 2010
roozbeh zomorodian m rezasoltani m.b ghofrani

application of cogeneration systems based gas turbine for heat and power production is increasing. because of finite natural energy resources and increasing energy demand the cost effective design of energy systems is essential. cgam problem as a cogeneration system is considered here for analyzing. two new approaches are considered, first in thermodynamic model of gas turbine and cogeneration ...

Journal: :Journal of Physics: Conference Series 2022

Abstract Repair and maintenance operations of wind turbines constitute a significant part costs energy. In this paper, technologies structural repair damaged turbine blades are reviewed. Costs repair, technological contribution to the discussed. Technologies compared, including hand layup lamination, vacuum with infusion, ultraviolet curing high temperature thermal systems. Computational models...

2008
Wenxian Yang P. J. Tavner Michael Wilkinson

Some large wind turbines use a low speed synchronous generator, directly-coupled to the turbine, and a fully rated converter to transform power from the turbine to mains electricity. This paper considers the condition monitoring and diagnosis of mechanical and electrical faults in such a variable speed machine. The application of wavelet transforms is investigated because of the disadvantages o...

2009
Susan A. Frost Mark J. Balas Alan D. Wright

Many challenges exist for the operation of wind turbines in an efficient manner that is reliable and avoids component fatigue and failure. Turbines operate in highly turbulent environments resulting in aerodynamic loads that can easily excite turbine structural modes, possibly causing component fatigue and failure. Wind turbine manufacturers are highly motivated to reduce component fatigue and ...

Journal: :Anasthesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie : AINS 1971
J Lawler

Community-based wind energy projects, with their small-scale, yet sizeable presence, provide a valuable opportunity to understand how individuals make sense of changes to their communities and to the surrounding landscape. Here, we examine the results of a 2013 mail survey of individuals residing in the vicinity of a 2 MW wind turbine that is located on the edge of the historic coastal town of ...

2017
G. Amato S. Doyle S. Petley M. S. Campobasso I. A. Milne G. A. Aggidis

Initial results of an ongoing Navier-Stokes Computational Fluid Dynamics study of horizontal axis tidal current turbine hydrodynamics are presented. Part of the underlying motivation is assessing the effects of the Reynolds number on turbine performance and loads in steady and unsteady flow regimes. The study aims at a) providing initial verification and validation of Navier-Stokes CFD for stea...

2003
Yongjun Zhao Hongmei Chen Mark Waters Dimitri N. Mavris

The combined cycle power plant is made up of three major systems, the gas turbine engine, the heat recovery steam generator and the steam turbine. Of the major systems the gas turbine engine is a fixed design offered by a manufacturer, and the steam turbine is also a fairly standard design available from a manufacturer, but it may be somewhat customized for the project. In contrast, the heat re...

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