Results 11 to 20 of about 234,561 (69)

Turbine cooling and heat transfer modelling for gas turbine performance simulation [PDF]

open access: yes, 2015
The successful design of cooling systems for gas turbine engines is a key factor to feasibility of new projects, as the trend for increasing turbine entry temperatures implies requirements for more sophisticated cooling methods.
Apostolidis, Asteris
core   +7 more sources

Rough set based gas turbine fault isolation study [PDF]

open access: yes, 2010
Gas path fault isolation is one of the key techniques in Engine Health Management systems. In order to accomplish gas path fault isolation successfully for a gas turbine engine, both an accurate off-design performance model and an effective fault ...
Wang, Lihui.
core   +6 more sources

Etude numérique et expérimentale de l'écoulement autour d'un rotor éolien [PDF]

open access: yes, 2013
An improved model of an actuator surface is proposed, representing the flow around a wind turbine. This model was developed in conjunction with a Navier-Stokes solver using a blade element method for the calculation of power and wake development.
MEMON, Asif   +2 more
core   +1 more source

Techno-Economic Analysis of Gas Turbine Compressor Washing to Combat Fouling [PDF]

open access: yes, 2015
Among the major deterioration problems a gas turbine encountered while in operation is compressor blade fouling. This is the accumulation and adhesion of dirt and sediment on the compressor blade which contributes between 70 to 85% of gas turbine ...
Abass, Kabir Oliade
core   +6 more sources

Etude et dimensionnement d’émulateurs d’une turbine éolienne [PDF]

open access: yes, 2012
133 f. : ill. ; 30 cm. (+ CD-Rom)Résumé : Actuellement, l’émulateur est devenu un outil de recherche dans les laboratoires dans le but de tester les différentes commandes de génératrices utilisés dans les éoliennes. Ce mémoire de Master a pour objectif l’
Hedir Abdellah, Ghouilem Samir
core   +1 more source

Modeling and Control of a Marine Current Turbine Driven Doubly-Fed Induction Generator [PDF]

open access: yes, 2010
This paper deals with the modeling and the control of a variable speed DFIG-based marine current turbine with and without tidal current speed sensor.
BENELGHALI, Seifeddine   +3 more
core   +1 more source

Numerical simulation in vertical wind axis turbine with pitch controlled blades [PDF]

open access: yes, 2012
Wind energy is more and more used as a renewable energy source character. The present wind turbine is a small one which allows to be used on roofs or in gardens to light small areas like publicity boards, parking, roads or for water pumping, heating ...
SIMONET, Sophie   +3 more
core  

Spectral analysis of unsteady flow simulation in a small VAWT [PDF]

open access: yes, 2012
The vertical axis wind turbine studied in this paper combine two rotations: one rotating movement of each blade around its own axis and one rotating movement around turbine’s axis.
SIMONET, Sophie   +2 more
core  

Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control [PDF]

open access: yes, 2011
This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT installations.
AHMED-ALI, Tarek   +11 more
core   +1 more source

Determination of wind turbine far wake using actuator disk [PDF]

open access: yes, 2014
The growth in size of wind turbines over the last years is significant. The rotor diameter becomes somehow comparable to atmospheric boundary layer at the land surface. In this case the assumption of uniform velocity of upcoming wind cannot be valid. The
AMER, Rodeyna   +2 more
core  

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