Results 31 to 40 of about 6,613,070 (345)

Modelling of variable-speed refrigeration for fast-frequency control in low-inertia systems

open access: yesIET Smart Grid, 2020
In modern power systems, shiftable loads contribute to the flexibility needed to increase robustness and ensure security. Thermal loads are among the most promising candidates for providing such service due to the large thermal storage time constants ...
Johanna Vorwerk   +4 more
doaj   +1 more source

Multiple-injection dry low-NOx combustor for hydrogen-rich syngas fuel: testing and evaluation of performance in an IGCC pilot plant

open access: yesMechanical Engineering Journal, 2014
The successful development of oxygen-blown integrated coal gasification combined cycle (IGCC) technology requires gas turbines capable of achieving the dry low nitrogen oxides (NOx) combustion of hydrogen-rich syngas for low emissions and high plant ...
Tomohiro ASAI   +5 more
doaj   +1 more source

Three-Dimensional Analytical Modeling of an Eddy-Current-Based Non-Contact Speed Sensor

open access: yesIEEE Open Journal of Industry Applications, 2021
This paper presents a computationally efficient, three-dimensional electromagnetic model for eddy-current-based speed sensors featuring an injection coil, two or more pick-up coils and a magnetic yoke.
Arda Tuysuz   +5 more
doaj   +1 more source

A power-based perspective of mechanical systems [PDF]

open access: yes, 2005
This paper is concerned with the construction of a power-based modeling framework for a large class of mechanical systems. Mathematically this is formalized by proving that every standard mechanical system (with or without dissipation) can be written as ...
Jeltsema, D.,, Scherpen, J. M. A.,
core   +2 more sources

An Optimized Combination of a Large Grid Connected PV System along with Battery Cells and a Diesel Generator [PDF]

open access: yes, 2016
Environmental, economical and technical benefits of photovoltaic (PV) systems make them to be used in many countries. The main characteristic of PV systems is the fluctuations of their output power.
Ferdowsi, Farzad   +2 more
core   +2 more sources

Low-Concentration Solar-Power Systems Based on Organic Rankine Cycles for Distributed-Scale Applications: Overview and Further Developments [PDF]

open access: yes, 2015
This paper is concerned with the emergence and development of low-to-medium-grade thermal-energy-conversion systems for distributed power generation based on thermo- dynamic vapor-phase heat-engine cycles undergone by organic working uids, namely ...
Markides, CN
core   +2 more sources

DYNAMIC PROGRAMMING – EFFICIENT TOOL FOR POWER SYSTEM EXPANSION PLANNING [PDF]

open access: yesJournal of Sustainable Energy, 2015
The paper isfocusing on dynamic programming use for power system expansion planning (EP) – transmission network (TNEP) and distribution network (DNEP). The EP problem has been approached from the retrospective and prospective point of view.
SIMO A., KILYENI ST, BARBULESCU C.
doaj  

Heat and power load dispatching considering energy storage of district heating system and electric boilers

open access: yesJournal of Modern Power Systems and Clean Energy, 2018
As one of promising clean and low-emission energy, wind power is being rapidly developed in China. However, it faces serious problem of wind curtailment, particularly in northeast China, where combined heat and power (CHP) units cover a large proportion ...
Xianzheng HUANG   +7 more
doaj   +1 more source

Designing tailored combinations of structural units in polymer dielectrics for high-temperature capacitive energy storage

open access: yesNature Communications, 2023
Many mainstream dielectric energy storage technologies in the emergent applications, such as renewable energy, electrified transportations and advanced propulsion systems, are usually required to operate under harsh-temperature conditions.
Rui Wang   +9 more
doaj   +1 more source

Powering the Future: A Comprehensive Review of Battery Energy Storage Systems

open access: yesEnergies, 2023
Global society is significantly speeding up the adoption of renewable energy sources and their integration into the current existing grid in order to counteract growing environmental problems, particularly the increased carbon dioxide emission of the ...
Sergi Obrador Rey   +7 more
doaj   +1 more source

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