Results 21 to 30 of about 2,042 (183)

Challenging low Reynolds - SWT blade aerodynamics

MATEC Web of Conferences, 2018
One of the main issues related to the design and development of small wind turbines (SWTs) is the low Reynolds number. Operation in the transitory regime makes the rotor aerodynamic analysis a challenging task.
Kądrowski Damian, Kulak Michał, Lipian Michał, Stępień Małgorzata, Baszczyński Piotr, Zawadzki Karol, Karczewski Maciej   +6 more
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Experimental Performance Study of a High Speed Oil Lubricated Polymer Thrust Bearing

Lubricants, 2015
With the demand for turbomachinery to operate at higher speeds, loads, and power, fluid film bearings that support turbomachinery must be capable of operating in these more demanding applications.
Jie Zhou, Barry Blair, John Argires, Donald Pitsch   +3 more
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Influence of Disc Tip Geometry on the Aerodynamic Performance and Flow Characteristics of Multichannel Tesla Turbines

Energies, 2019
As a competitive small-scale turbomachinery option, Tesla turbines have wide potential in various fields, such as renewable energy generation systems and small power equipment.
Wenjiao Qi, Qinghua Deng, Zhinan Chi, Lehao Hu, Qi Yuan, Zhenping Feng   +5 more
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Experimental Validation of an Analytical Condensation Model for Application in Steam Turbine Design

International Journal of Turbomachinery, Propulsion and Power, 2022
This paper presents experimental data on shear-stress-driven liquid water films on a horizontal plate formed by the condensation of superheated steam. The experimental results were obtained in the Experimental Multi-phase Measurement Application (EMMA ...
Florian Felix Lapp, Sebastian Schuster, Simon Hecker, Dieter Brillert   +3 more
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Unstable Flow Structures Present at Different Rotational Velocities of the Centrifugal Compressor

Energies, 2020
Unstable flow structures cause inevitable energy losses in all power energy systems, including turbomachines. In this study, a set of analyses was conducted with the use of spectral maps on the pressure signals obtained from an industrial centrifugal ...
Grzegorz Liśkiewicz, Kirill Kabalyk, Andrzej Jaeschke, Filip Grapow, Michał Kulak, Mateusz Stajuda, Władysław Kryłłowicz   +6 more
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Disc Thickness and Spacing Distance Impacts on Flow Characteristics of Multichannel Tesla Turbines

Energies, 2018
Tesla turbines are a kind of unconventional bladeless turbines, which utilize the viscosity of working fluid to rotate the rotor and realize energy conversion.
Wenjiao Qi, Qinghua Deng, Yu Jiang, Qi Yuan, Zhenping Feng   +4 more
doaj   +1 more source

NUMERICAL STUDIES OF INTERNAL FLOW IN DIFFERENT TYPES OF FILTERS

TASK Quarterly, 2020
The quality of ambient air attracts considerable, widespread interest. Over the last decades, air purification has become an integral part of HVAC systems, process engineering, automotive and respiratory protection.
MAGDALENA STANIK, SZYMON CABAN, MARLENA KLONECKA, MATEUSZ BUCZAK, PIOTR WIŚNIEWSKI   +4 more
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Impact of Leakage Inlet Swirl Angle in a Rotor–Stator Cavity on Flow Pattern, Radial Pressure Distribution and Frictional Torque in a Wide Circumferential Reynolds Number Range

International Journal of Turbomachinery, Propulsion and Power, 2020
In the side-chambers of radial turbomachinery, which are rotor–stator cavities, complex flow patterns develop that contribute substantially to axial thrust on the shaft and frictional torque on the rotor.
Tilman Raphael Schröder, Hans-Josef Dohmen, Dieter Brillert, Friedrich-Karl Benra   +3 more
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Numerical simulation methodologies for design and development of Diffuser-Augmented Wind Turbines – analysis and comparison

Open Engineering, 2016
Different numerical computation methods used to develop a methodology for fast, efficient, reliable design and comparison of Diffuser-Augmented Wind Turbine (DAWT) geometries are presented.
Lipian Michał, Karczewski Maciej, Molinski Jakub, Jozwik Krzysztof   +3 more
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Study on Humid Air Turbine Cooling Technique

发电技术, 2021
In order to study the influence of humid air on the cooling performance of turbine blade and build the cooling performance prediction model of humid air turbine, the experimental platform of normal pressure turbine blade cooling was established, and the ...
Hua ZHU, Biao YAN, Yusong LIU, Liang LI
doaj   +1 more source