Results 21 to 30 of about 274 (143)

Numerical optimization of air breathing radial outflow turbines [PDF]

open access: yesEuropean Conference on Turbomachinery Fluid Dynamics and hermodynamics, 2019
Small air driven alternators serve as a practical solution to be a power source for miniature electronic equipment. An air-breathing radial outflow turbine can be easily manufactured and implemented to a variety of terrestrial and aerial vehicles for auxiliary power generation. The flow characteristics of such turbines need to be understood in order to
Isa Kavas   +2 more
openaire   +1 more source

Turbulent flow modelling and prediction of blade profile losses in radial outflow turbine [PDF]

open access: yes, 2021
Motivated by the high potential radial outflow turbines offer in utilizing waste heat, against relatively limited studies on radial outflow turbine aerodynamics, this thesis has the objective to examine the predictive prospects for determining the ROT ...
Tomovska, Elena
core  

Flow physics analysis and dynamic efficiency assessment of supercritical CO2 radial outflow turbines

open access: yesApplied Thermal Engineering
Aki Grönman   +2 more
exaly   +2 more sources

CFD analysis and optimisation of unidirectional radial turbine geometry for application with oscillating water column wave energy converters [PDF]

open access: yes, 2019
An oscillating-water-column (OWC) is a popular device for harnessing the power of ocean waves. A key component in the system is the air turbine, which operates as the power take-off unit (PTO) converting pneumatic power to mechanical.
Ansarifard, N (15934154)
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Blade row interaction in radial turbomachines [PDF]

open access: yes, 1999
A computational study has been performed to investigate the effects of blade row interaction on the performance of radial turbomachines, which was motivated by the need to improve our understanding of the blade row interaction phenomena for further ...
Sato, K., Sato, Kenji
core  

High Power Density, Low Temperature, Solid Oxide Fuel Cells at Elevated Oxygen Partial Pressure

open access: yesAdvanced Energy Materials, EarlyView.
Elevated pO2${{p}_{{{{\mathrm{O}}}_2}}}$ improves oxygen reduction reaction (ORR) kinetics, thus reducing electrode area specific resistance (ASR). The effect of pO2${{p}_{{{{\mathrm{O}}}_2}}}$ in open circuit potential (OCP) and ASR is demonstrated on both Sr0.5Sm0.5CoO3‐δ‐Gd0.1Ce0.9O2‐δ (SSC‐GDC) composite cathodes and our recently developed nano‐PSC
Samuel A. Horlick   +7 more
wiley   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

Tip Clearance Effect on the Flow Pattern of a Radial Impulse Turbine for Wave Energy Conversion [PDF]

open access: yes, 2011
Turbines for wave energy conversion have a special feature to be taken into account in the study of the tip leakage flow: These turbines are self-rectifying, which work inside a cyclically bidirectional flow alternatively as an inflow/outflow turbine ...
Francisco Castro   +7 more
core   +1 more source

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