Results 41 to 50 of about 34,180 (208)

Model Predictive Evolutionary Temperature Control via Neural-Network-Based Digital Twins

Algorithms, 2023
In this study, we propose a population-based, data-driven intelligent controller that leverages neural-network-based digital twins for hypothesis testing.
Cihan Ates, Dogan Bicat, Radoslav Yankov, Joel Arweiler, Rainer Koch, Hans-Jörg Bauer   +5 more
doaj   +1 more source

Introduction of a Data‐Based Preliminary Compressor Design for Mechanical Vapor Compression

Chemie Ingenieur Technik, EarlyView.
This work proposes a data‐driven methodology for the design of compressors for mechanical vapor compression, with the objective of electrification of chemical processes utilizing renewable energy sources. This approach enables the determination of suitable compressor architectures and their performance parameters within the framework of a potential ...
Lars Hinz, Jan Goeing, Daniel Muth, Christian Herrmann, Jens Friedrichs   +4 more
wiley   +1 more source

Characterization of dynamic stall of a wind turbine airfoil with a high Reynolds number [PDF]

Wind Energy Science
This study shows an extensive analysis of dynamic stall on wind turbine airfoils, preparing for the development of a reduced-order model applicable to thick airfoils (t/c>0.21) in the future.
H. R. Kim, J. A. Printezis, J. D. Ahrens, J. R. Seume, L. Wein   +4 more
doaj   +2 more sources

Comparative Numerical Studies for the Flow Energy Dissipation Features in a Vertical Two‐Stage Centrifugal Pump in Pump and Turbine Conditions

Energy Science &Engineering, EarlyView.
Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu, T. P. Chen, Y. Li, M. Q. Liang, Y. J. Zhang, X. Z. Wei   +5 more
wiley   +1 more source

Heat transfer and film cooling measurements on aerodynamic geometries relevant for turbomachinery

SN Applied Sciences, 2021
A measurement technique for recording convective heat transfer coefficient and adiabatic film cooling effectiveness in demanding environments with highly curved surfaces and limited optical access, such as turbomachinery, is presented.
Patrick Jagerhofer, Jakob Woisetschläger, Gerhard Erlacher, Emil Göttlich   +3 more
doaj   +1 more source

Energy Storage System in Microgrids: Challenges and Opportunities

Energy Science &Engineering, EarlyView.
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley   +1 more source

Opportunities to Enhance sCO2 Power Cycle Turbomachinery with Bearingless Motor/Generators

Solar Compass
Thermal power cycles using sCO2 as a working fluid place extreme demands on their turbomachinery components and their electric motors/generators.
Takahiro Noguchi, WaiYan Chan, Nathan Petersen, Logan Rapp, Eric Severson   +4 more
doaj   +1 more source

In Vitro Hemocompatibility of the BiVACOR Total Artificial Heart in Continuous and Pulsatile Flow

Artificial Organs, EarlyView.
BiVACOR's total artificial heart generates remarkably similar hemocompatibility when operated with a pulse or during continuous flow. Under both conditions, hemolysis and von Willebrand Factor multimers were similar to a commercial reference device after 6 h in vitro evaluation.
Antony P. McNamee, Daniel Timms, Frank Nestler, Nicole Bartnikowski, Amanda Smith, Geoff D. Tansley, Michael J. Simmonds   +6 more
wiley   +1 more source

Damping seal for turbomachinery [PDF]

, 1985
A damping seal between a high speed rotor member and stator member that separates pressurized fluid compartments is described. It is characterized by the rotor member having a smooth outer surface and the stator member having its bore surface roughened ...
Vonpragenau, G. L.
core   +1 more source

Forced Response Analysis of Dynamic Systems With Inertia Nonlinearity by Applying the Multiharmonic Balance Method

PAMM, Volume 26, Issue 1, March 2026.
ABSTRACT Nonlinear mechanical vibrations under harmonic forcing can be well approximated by Fourier series. For a finite number of harmonics, the error is minimized over one period of vibration. This technique, known as multiharmonic balance method (MHBM), is today widely used in academics as well as industrial applications, e.g., for friction‐damped ...
Sebastian Tatzko, Sebastian Neumann, Tido Kubatschek   +2 more
wiley   +1 more source