— Highlights The impact of wind turbine blade rotation on the lightning behavior was studied A lightning protection system in the form of receptors on blade tips of a scale model was examined The up and down method was used to determine the 50% flashover switching voltage The impulse voltage waves were applied between the arched and/or
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— Wind energy together with other renewable energy sources are expected to grow substantially in the coming decades and play a key role in mitigating climate change and achieving energy sustainability One of the main challenges in optimizing the design operation control and grid integration of wind farms is the prediction of their
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— This paper presents an experimental and computational study of the effect of severe inlet temperature distortion hot streaks on the efficiency of the MT1 HP turbine which is a highly loaded unshrouded transonic design The experiments were performed in the Oxford Turbine Research Facility OTRF formerly the TTF at QinetiQ Farnborough
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Impact of Fuel Composition on Gas Turbine Engine Performance Dan Burnes Alejandro Camou Open Access The ASME Open Journal of Engineering AOJE is a rapid turnaround multidisciplinary open access and rigorously peer reviewed publication that expands the ASME Journal Program to offer original research across the broad spectrum
— GE gas turbine performance characteristics Mechanical drive gas turbine ratings MS7000 PG 12 EA Number Model of Shafts Application Series Power Approx Output Power in Hundreds Thousands or 10 Thousands of Horsepower R Regen Blank SC Frame 1 or 2 3 5 7 6 9 Mech Drive Pkgd Gen M PG 7 1 Figure 1
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— This paper documents a computational investigation of the aerodynamic impact of film cooling on a linear turbine airfoil cascade The simulations were for single row injection on both the pressure and suction surfaces downstream of the leading edge region The cases match experimental efforts previously documented in the open literature
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— Therefore the cooling air is easier to be suppressed by swirl impact under low BR while the increasing blowing ratio can enhance the resistance of cooling air against swirl flows Introduction Effusion cooling is widely used in gas turbine and aero engine combustors [1] for low coolant consumption and excellent cooling performance
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where σ s is the smoothed standard deviation at a given wind speed At some points above rated power σ s =0 for these points PC i = × PC 1shows the observed power data PC e and PC i for one of the turbines in the top right plot approximates the reference data for non iced turbine production This plot shows that the standard
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— There are many studies focusing on the quantitative analysis of the uncertainty impact of geometric variations on turbine/compressor performance 6 7 as well as the relevant sensitivity analysis 8 9 and robustness optimization 10 11 Garzon and Darmofal pointed out that the overall aerodynamic efficiency of a six stage compressor
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— Blade icing often occurs on wind turbines in cold climates Blade icing has many adverse effects on wind turbines and the loss of output power is one of the most important effects With the increasing emphasis on clean energy around the world the design and production of wind turbines tend to be large scale So this paper selected the
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Distributed generators DGs are being increasingly connected at medium voltage level distribution networks It is likely that different types of DGs wind turbine generators WTGs photovoltaic solar systems etc may be connected on the same feeder Most of the modern DGs are equipped with power electronic converters at their terminals which act
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Impact of Fuel Composition on Gas Turbine Engine Performance Dan Burnes Alejandro Camou Open Access The ASME Open Journal of Engineering AOJE is a rapid turnaround multidisciplinary open access and rigorously peer reviewed publication that expands the ASME Journal Program to offer original research across the broad spectrum
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— Mixing of the turbine blade tip leakage and mainstream flows causes considerable aerodynamic loss Its understanding is crucial to raise a consequential improvement of the turbine performance In the present paper a typical high pressure turbine rotor flow is simulated by detached eddy simulation
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— Wind power can impact the climate by altering the atmospheric boundary layer with at least 40 papers and 10 observational studies now linking wind power to climatic impacts The wind turbine parametrization was originally released with WRF 32 and represents wind turbines as both a momentum sink and turbulent kinetic energy TKE
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Impact of advanced blade configuration on small scale cryogenic axial turbine performance Abstract Cryogenic Energy Storage CES technology which uses liquid air/nitrogen as energy carrier has attracted considerable attention recently due to its high exergy density 762kJ/kg compared to other energy storage technologies Liquid air/nitrogen
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— HK 10 Turbine Hydrokinetic turbine technology HK 10 presents a device capable of generating electricity sustainably HK 10 is a propeller type machine with four blades designed for installation on floating devices see Fig 1 These hydraulic machines provide electric energy from river or ocean currents with flexibility and low
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— Therefore particular attention should be paid to the inclination of suction side squealer rim to prevent any negative impact on turbine aerodynamic performance The predicted turbine stage efficiency leakage loss coefficient and total leakage flow rate for different tips are displayed in Fig 26 In this figure the horizontal axis represents
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Turbine Steam Technology History The first device that can be classified as a reaction steam turbine is the aeolipile proposed by Hero of Alexandria during the 1st century ce In this device steam was supplied through a hollow rotating shaft to a hollow rotating sphere It then emerged through two opposing curved tubes just as water issues from a rotating
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— By the time a pump is used to turbine water from an upper reservoir one says the pump is operating in Pump as Turbine PAT mode Due to pumps simple construction and series manufacturing PAT mode appears as an adequate and cost effective solution in electricity penetration for remote communities of hilly regions in
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