Results 141 to 150 of about 191,656 (310)

MAXIMUM POWER-CONVERSION EFFICIENCY FOR THE UTILIZATION OF SOLAR-ENERGY

, 1991
The overall efficiency of solar thermal power plants is investigated for estimating the upper limit of their practical performances. This study consists of the theoretical optimization of the heat engine and the optimization of the overall system ...
Kim, Sang Soo, LEE, WY
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Research on an innovative magnetic helix hybrid excitation rotary generator with remarkable power density and efficiency for wave energy conversion

Scientific Reports
Aiming at the limitations of direct drive wave energy conversion (DD-WEC), especially the poor power density, low energy conversion efficiency, and a large volume of linear generators (LGs), a novel magnetic helix hybrid excitation rotary generator (MH ...
Yulei Liu, Haitao Yu, Qiongfang Zhang
doaj   +1 more source

Efficiency Analysis of Spark Ignition Giogas Genset for Electricity Power Generation

, 2017
This research studied the influence of the ratio of load and maximum power of genset and usage time to the efficiency of electricity energy conversion using biogas as fuel.
Sudibyo, Henny; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia., Andriani, Dian; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia., Wresta, Arini; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia., Saepudin, Aep; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia., Santosa, Arifin; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia., Kusnadi, Kusnadi; Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences, Kompleks LIPI Gd. 20, Jl Sangkuriang, Bandung 40135, Indonesia.   +5 more
core  

Hybrid Power Balancing Method of Modular Power Converters to Achieve Enhanced Efficiency and Dynamic Performance

, 2021
In general, the master-slave output power balancing method has widely been used to stabilize parallelconnected modular power converters. However, it cannot consider the performance deviation among the modular power converters due to different stress and ...
Jung, Jee-Hoon, Park, Hwa-Pyeong, Kim, Mina   +2 more
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Alternatives for Connecting Photovoltaic Generators to Power Systems with Three-Port and Partial Power Converters

Applied Sciences
Solar electricity has become one of the most important renewable power sources due to rapid developments in the manufacturing of photovoltaic (PV) cells and power electronic techniques as well as the consciousness of environmental protection. In general,
Donghui Ye, Sergio Martinez
doaj   +1 more source

Modeling the path to >30% power conversion efficiency in perovskite solar cells with plasmonic nanoparticles. [PDF]

RSC Adv, 2023
Mashrafi M, Anik MHK, Israt MF, Habib A, Islam S.   +4 more
europepmc   +1 more source

Quasi-Resonant Passive Snubber for Improving Power Conversion Efficiency of a DC-DC Step-Down Converter

, 2018
A quasi-resonant passive snubber for the conventional dc-dc step-down converter is proposed. The snubber uses six passive components to achieve a zero-current turn-ON and zero-voltage turn-OFF of the switch, and to suppress the reverse recovery current ...
Kang, Bongkoo, Bongkoo Kang, Choe, Hyung-Jin, Lee, Sang-Hoon, Hyung-Jin Choe, Sang-Hoon Lee   +5 more
core   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source