Results 191 to 200 of about 297,175 (241)
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Kinetic energy harvesting using improved eccentric rotor architecture for wearable sensors
2016 IEEE SENSORS, 2016This paper presents an energy harvester based on an improved eccentric rotor to generate electrical power from human body motion. An eccentric mass is suspended by a rotational spring to enhance the mechanical energy captured from low and random frequencies.
Qian Zhang +5 more
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Structural and Multidisciplinary Optimization, 2021
Flywheel energy storage systems (FESS) are devices that are used in short duration grid-scale energy storage applications such as frequency regulation and fault protection. The energy storage component of the FESS is a flywheel rotor, which can store mechanical energy as the inertia of a rotating disk.
Vaishnavi Kale +2 more
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Flywheel energy storage systems (FESS) are devices that are used in short duration grid-scale energy storage applications such as frequency regulation and fault protection. The energy storage component of the FESS is a flywheel rotor, which can store mechanical energy as the inertia of a rotating disk.
Vaishnavi Kale +2 more
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2024 6th International Conference on Energy, Power and Grid (ICEPG)
Wind-storage systems are widely used in wind power frequency support, but there is still a lack of optimized coordinated control strategies. This paper proposes a wind-storage coordinated control based on a partitioned variable step-size optimization ...
Xu Lin +7 more
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Wind-storage systems are widely used in wind power frequency support, but there is still a lack of optimized coordinated control strategies. This paper proposes a wind-storage coordinated control based on a partitioned variable step-size optimization ...
Xu Lin +7 more
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The Journal of Chemical Physics, 2017
An optical centrifuge is used to generate an ensemble of CO2 super rotors with oriented angular momentum. The collision dynamics and energy transfer behavior of the super rotor molecules are investigated using high-resolution transient IR absorption spectroscopy. New multipass IR detection provides improved sensitivity to perform polarization-dependent
Matthew J. Murray +2 more
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An optical centrifuge is used to generate an ensemble of CO2 super rotors with oriented angular momentum. The collision dynamics and energy transfer behavior of the super rotor molecules are investigated using high-resolution transient IR absorption spectroscopy. New multipass IR detection provides improved sensitivity to perform polarization-dependent
Matthew J. Murray +2 more
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Chemical Engineering and Processing: Process Intensification, 2017
The theoretical understanding of inline rotor-stator mixer (RSM) efficiency, described in terms of the dissipation rate of turbulent kinetic energy as a function of mixer design and operation, is still poor. As opposed to the correlations for shaft power draw, where a substantial amount of experimental support for the suggested correlations exists, the
Andreas Håkansson, Fredrik Innings
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The theoretical understanding of inline rotor-stator mixer (RSM) efficiency, described in terms of the dissipation rate of turbulent kinetic energy as a function of mixer design and operation, is still poor. As opposed to the correlations for shaft power draw, where a substantial amount of experimental support for the suggested correlations exists, the
Andreas Håkansson, Fredrik Innings
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Chemical Engineering Research and Design, 2018
Abstract Rotor–stator mixers (RSMs) are widely used for emulsification and mixing. However, relatively little is known about the relationship between RSM design, hydrodynamics and performance. Previous studies have investigated shaft power draw as a function of design. However, power draw alone is not sufficient to predict efficiency.
Hans Henrik Mortensen +2 more
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Abstract Rotor–stator mixers (RSMs) are widely used for emulsification and mixing. However, relatively little is known about the relationship between RSM design, hydrodynamics and performance. Previous studies have investigated shaft power draw as a function of design. However, power draw alone is not sufficient to predict efficiency.
Hans Henrik Mortensen +2 more
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Physics of Fluids, 2005
Particle image velocimetry data obtained in the rotor wake of a turbomachine are used for examining elements of the ensemble averaged and spatially filtered kinetic energy. These two distinct averaging processes decompose the kinetic energy into four parts, consisting of the mean-flow resolved, mean-flow subgrid, fluctuating resolved, and fluctuating ...
Chow, Yi-Chih +3 more
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Particle image velocimetry data obtained in the rotor wake of a turbomachine are used for examining elements of the ensemble averaged and spatially filtered kinetic energy. These two distinct averaging processes decompose the kinetic energy into four parts, consisting of the mean-flow resolved, mean-flow subgrid, fluctuating resolved, and fluctuating ...
Chow, Yi-Chih +3 more
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Wind Turbine Frequency Regulation Strategy Considering Optimal Release Path of Rotor Kinetic Energy
2025 10th Asia Conference on Power and Electrical Engineering (ACPEE)Zhihong Ren +5 more
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Journal of Molecular Structure, 2000
Abstract A precessing rotor model is used to mimic the structural flexing which is predicted by ab initio calculations to accompany internal rotation in molecules. The internal rotation kinetic energy coefficient F(τ) is found to vary with τ, and to have an average value F0 significantly less than the constant Frig calculated for a rigid model ...
P.M. Brodersen, R.D. Gordon
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Abstract A precessing rotor model is used to mimic the structural flexing which is predicted by ab initio calculations to accompany internal rotation in molecules. The internal rotation kinetic energy coefficient F(τ) is found to vary with τ, and to have an average value F0 significantly less than the constant Frig calculated for a rigid model ...
P.M. Brodersen, R.D. Gordon
openaire +2 more sources