CFD Study on the Windage Power Loss of High Speed Gear
IOP Conference Series: Materials Science and Engineering, 2019 The windage power loss is main factor of the power loss in a high speed gearbox. CFD simulation method has been developed for a detailed understanding of the physical mechanism of windage power loss. Comparisons are made with experimental data from the open literature. The CFD results are in good agreement with experiment.
A He, R Deng, Y Xiong
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The Status and Future of Flywheel Energy Storage [PDF]
, 2019 Flywheels, one of the earliest forms of energy storage, could play a significant role in the transformation of the electrical power system into one which is fully sustainable yet low cost.
Pullen, K. R.
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Cold-air performance of a tip turbine designed to drive a lift fan. 3: Effect of simulated fan leakage on turbine performance [PDF]
Performance data were obtained experimentally for a 0.4 linear scale version of the LF460 lift fan turbine for a range of scroll inlet total to diffuser exit static pressure ratios at design equivalent speed with simulated fan leakage air.
Futral, S. M., Jr. +3 more
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Optimal design of a dual-pressure radial-inflow turbine for S-CO2 cycle based on constructal theory
Results in EngineeringBased on constructal theory, a dual-pressure turbine (DPT) model for supercritical CO2 cycle is established. Seven kinds of losses, such as the nozzle, incidence, passage, windage, tip clearance, trailing and exit velocity losses, are considered in the ...
Chuang Tang +4 more
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Comparison of spur gear efficiency prediction methods [PDF]
The predictions of five spur-gear efficiency calculation methods were compared with three sets of test data using different gear geometries. The data and the analysis methods were limited to jet lubricated, ground, spur gears. The data covered a range in
Anderson, N. E., Loewenthal, S. H.
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Design of Spur Gears for Improved Efficiency [PDF]
A method to calculate spur gear system loss for a wide range of gear geometries and operating conditions was used to determine design requirements for an efficient gearset.
Anderson, N. E., Loewenthal, S. H.
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Development of a high-fidelity model for an electrically driven energy storage flywheel suitable for small scale residential applications [PDF]
, 2018 Energy storage systems (ESS) are key elements that can be used to improve electrical system efficiency by contributing to balance of supply and demand. They provide a means for enhancing the power quality and stability of electrical systems.
Boby +26 more
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Applied SciencesThe windage loss in impeller back gap and labyrinth seal cavities significantly impacts the aerodynamic performances of supercritical carbon dioxide (sCO2) compressors.
Bing Tang +5 more
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Effect of Reynolds number on overall performance of a 6-inch radial bladed centrifugal compressor [PDF]
Overall performance of centrifugal compressor over range of inlet pressures and corresponding Reynolds ...
Ball, C. L. +2 more
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Design and optimization of a high power density machine for flooded industrial pump [PDF]
, 2016 This paper presents the design optimization procedure of a high power-density, permanent magnet synchronous machine for industrial pump applications. The designed machine drives an electric, oil flooded pump.
Al-Timimy, A. +8 more
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