Results 261 to 270 of about 549,955 (335)
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Modern Physics Letters B, 2016
Graphene, the two-dimensional (2D) nanomaterial, draws interest of several researchers due to its many superior properties. It has extensive applications in numerous fields. A turbine is a hydraulic machine which extracts energy from a fluid and converts it into useful work.
D. K. Das, P. K. Swain, S. Sahoo
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Graphene, the two-dimensional (2D) nanomaterial, draws interest of several researchers due to its many superior properties. It has extensive applications in numerous fields. A turbine is a hydraulic machine which extracts energy from a fluid and converts it into useful work.
D. K. Das, P. K. Swain, S. Sahoo
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Measurements of turbine blade temperature in an operating aero engine using thermographic phosphors
Measurement science and technology, 2020A diagnostic method is introduced for non-contact temperature measurements on the surface of a rotating turbine blade in an operating engine using laser-induced excitation of thermographic phosphor coatings on the blades.
T. Jenkins +3 more
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A flexible turbine blade for passive blade pitch control in wind turbines
2011 IEEE Power Engineering and Automation Conference, 2011We present a flexible wind turbine blade that effectively pitches itself according to variable wind loading. In contrast to rigid turbine blades, where active controls are often required to pitch blades, the flexible or morphing blade adjusts its geometry passively, eliminating the need for costly electromechanical systems. We analyze the airfoil using
David MacPhee, Asfaw Beyene
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UAV based defect detection and fault diagnosis for static and rotating wind turbine blade: a review
Nondestructive Testing and EvaluationWith the continuous development of wind energy resources, wind turbines have become a crucial element in the field of green energy. However, various malfunctions may occur during their operation, affecting performance and lifespan.
Shangchen Zhang +8 more
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Wind Turbine Blade Breakage Monitoring With Deep Autoencoders
IEEE Transactions on Smart Grid, 2018Monitoring wind turbine blade breakages based on supervisory control and data acquisition (SCADA) data is investigated in this research. A preliminary data analysis is performed to demonstrate that existing SCADA features are unable to present irregular ...
Long Wang +3 more
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Borax Crystallization Kinetics in a Pitched‐Blade Turbine/Straight‐Blade Turbine Dual‐Impeller Crystallizer [PDF]
Chemical Engineering & Technology, 2018 AbstractThe influence of hydrodynamic conditions on crystallization kinetics and properties of borax crystals obtained in a dual‐impeller batch cooling crystallizer was investigated. The two impellers used, i.e., pitched‐ and straight‐blade turbines, were mounted on the same shaft.
Čelan, Antonija +2 more
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Turbine Blade Cooling: The Blade Temperature Distribution
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2006Air cooling of high-temperature gas turbines is a standard practice; the air first cools the blading by internal convection and then by external film cooling, after ejection through holes and slots in the blade surface. In some ‘conventional’ analyses of turbine blade cooling, a ‘standard blade’ is invoked, which has a uniform blade temperature equal ...
J. H. Horlock, L Torbidoni
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2019
Abstract In an electric power station, seven turbine blades out of 112 broke or cracked within 8 to 14 months after commencement of operation. The blades in question were all located on the last running wheel in the low pressure section of a 35,000 kW high pressure condensing turbine.
Friedrich Karl Naumann, Ferdinand Spies
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Abstract In an electric power station, seven turbine blades out of 112 broke or cracked within 8 to 14 months after commencement of operation. The blades in question were all located on the last running wheel in the low pressure section of a 35,000 kW high pressure condensing turbine.
Friedrich Karl Naumann, Ferdinand Spies
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Concepts for adaptive wind turbine blades
2002 ASME Wind Energy Symposium, 2002Bend-twist coupling in wind turbine blades has been shown to reduce both fatigue and extreme operating loads, especially when applied in conjunction with a pitch-controlled rotor. This type of coupling has been used in other industries, implemented either through biased lay-ups of fiber-reinforced materials, or with swept wings.
Thomas D. Ashwill +5 more
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Non-linear dynamic analysis of a wind turbine blade
Zhongguó gongchéng xuékan, 2019Wind turbine blades’ dynamic behavior must be well investigated during the design process in order to avoid resonance. Modal analysis and nonlinear dynamic analysis of a rotating wind turbine blade are presented in this paper to study the effects of ...
R. Maktouf +4 more
semanticscholar +1 more source