Results 31 to 40 of about 978,162 (184)

Optimal scheduling of an electric–hydrogen-integrated energy system considering virtual energy storage

Frontiers in Energy Research
In this paper, a two-layer optimization approach is proposed to facilitate the multi-energy complementarity and coupling and optimize the system configuration in an electric-hydrogen-integrated energy system (EH-IES).
Bolin Zhang, Chong Shao, Chunhua Li, Tingzhe Guo, Aihu Lei, Xinyu Guan, Longyu Zu   +6 more
doaj   +1 more source

Optimal Capacity Configuration for Energy Hubs Considering Part-Load Characteristics of Generation Units

Energies, 2017
The simulation model is one of the key points affecting the optimal planning and operation of energy hubs (EHs). Since treating the efficiencies of generation units as constants would significantly simplify the calculation, only a simplified model is ...
Shan Deng, Qinghua Wu, Zhaoxia Jing, Lilan Wu, Feng Wei, Xiaoxin Zhou   +5 more
doaj   +1 more source

Capacity of SIMO and MISO Phase-Noise Channels with Common/Separate Oscillators

, 2015
In multiple antenna systems, phase noise due to instabilities of the radio-frequency (RF) oscillators, acts differently depending on whether the RF circuitries connected to each antenna are driven by separate (independent) local oscillators (SLO) or by a
Durisi, Giuseppe, Eriksson, Thomas, Khanzadi, M. Reza   +2 more
core   +1 more source

Capacity Configuration of Hybrid Energy Storage System for Fuel Cell Vessel Based on Multi-Verse Optimizer–Variational Mode Decomposition Crossover Allocation Algorithm

Energies
The hybrid energy storage system (HESS) significantly improves the dynamic response and energy utilization efficiency of the propulsion system in fuel cell vessels while maintaining the stability of the power grid.
Xiuyuan Liu, Jingang Han
doaj   +1 more source

Optimal Allocation Method of Source and Storage Capacity of PV-Hydrogen Zero Carbon Emission Microgrid Considering the Usage Cost of Energy Storage Equipment

Energies, 2022
Aiming to meet the low-carbon demands of power generation in the process of carbon peaking and carbon neutralization, this paper proposes an optimal PV-hydrogen zero carbon emission microgrid.
Hongshan Zhao, Junyang Xu, Kunyu Xu, Jingjie Sun, Yufeng Wang   +4 more
doaj   +1 more source

Optimal sizing of hybrid energy storage system under multiple typical conditions of sources and loads

International Journal of Sustainable Energy
Hybrid energy storage system (HESS) can support integrated energy system (IES) under multiple time scales. To address the diversity of new energy sources and loads, a multi-objective configuration frame for HESS is proposed under comprehensive source ...
Changling Li, Xinyan Zhang
doaj   +1 more source

A Workload-Specific Memory Capacity Configuration Approach for In-Memory Data Analytic Platforms

, 2017
We propose WSMC, a workload-specific memory capacity configuration approach for the Spark workloads, which guides users on the memory capacity configuration with the accurate prediction of the workload's memory requirement under various input data size ...
Chang, Shilu, Liang, Yi, Su, Chao
core   +1 more source

On an extremal configuration for capacity

Arkiv för Matematik, 1989
One main result concerns a set \(E\) on the unit circle consisting of a fixed number \(n\) of arcs with total length \(L\). Let \(E^*\) be the set whose arcs have equal length \(L/n\) and are symmetrically distributed around the circle. Then \[ \hbox{cap} E\leq\hbox{cap} E^*=\{\sin L/4\}^{1/n}.
openaire   +2 more sources

A Two-Stage Site Selection and Capacity Determination Method for Energy Storage Power Stations Based on HC-MOPSO

Zhongguo dianli
A planning method for energy storage stations based on Hierarchical Clustering (HC) and Multi Objective Particle Swarm Optimization (MOPSO) is proposed to address the difficulty of balancing the coupling effects of active power and node voltage in large ...
Wangwang BAI, Dezhou YANG, Wanwei LI, Tao WANG, Yaozhong ZHANG   +4 more
doaj   +1 more source

Negative heat capacity in the critical region of nuclear fragmentation: an experimental evidence of the liquid-gas phase transition

, 1999
An experimental indication of negative heat capacity in excited nuclear systems is inferred from the event by event study of energy fluctuations in $Au$ quasi-projectile sources formed in $Au+Au$ collisions at 35 A.MeV.
A. Moroni, Bondorf, Chomaz, D'Agostino, F. Cannata, F. Gramegna, F. Gulminelli, G. Vannini, G.V. Margagliotti, Gross, Gulminelli, I. Iori, M. Bruno, M. D'Agostino, Marie, Milazzo, N. Le Neindre, Ph. Chomaz, R. Bougault, Stauffer, Stodolsky   +20 more
core   +4 more sources