Global ETD Search
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Showing 1 to 4 of 4 for “"Turbine losses"”.
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The influence of blade stacking on turbine losses
… cascades of highly loaded, low aspect ratio turbine blades have been tested in detail to investigate the mechanisms of secondary loss and the influence of non-radial stacking (lean) on these mechanisms. The blades in all three cascades had the same section but they were stacked perpendicular …
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Design, Analysis, Optimization and Control of Rotor Tip Flows
… investigations over the past decades, the turbine tip design presents numerous challenges to the engine manufacturers, and remains the primary factor defining the machine durability for the periodic removal of the turbine components during overhaul. Due to the hot gases coming from the …
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Performance and Evaluation of a Variable-Speed Darrieus Wind Turbine
… costs and total energy produced. Darrieus wind turbines are one of the most promising models, because of relatively low capital costs inherent in the simple design (Sullivan, 1979). The Darrieus is a vertical-axis machine that resembles an egg beater. It needs no yaw control mechanism, since it …
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Comprehensive throughflow method for steam turbine development
… measurements. However, condensation in steam turbines is much more complex and optical measurements show a much broader droplet spectrum than in nozzles and steady cascade expansions. The dominant theory explaining this behaviour is that large-scale fluctuations in static temperature …