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The aspect ratio (AR) and installation angle (tilted angle) for a latent heat energy storage tank play important roles in addressing the issue of thermal energy storage/release efficiency. In this work, the coupled effects of tank aspect ratio and tilted angle upon melting phase change were both experimentally and numerically investigated.
Therefore, the share of technology convergence in energy storage and ICTs (denoted as E S × I C T) in electrical energy storage (denoted as a total of ES) from 1989 to 2021 can be expressed as follows: (1) P a t e n t C o n v e r g e n c e i n E S (1989 − 2021) = E S × I C T t o t a l o f E S = 13518 97122 ≈ 13.9 % # 2.2. Cluster method
With sustained and rapid development of its economy, China''s external energy dependency increases. The net imports of petroleum products, including crude oil, oil, liquefied petroleum gas, etc., have reached 2.931 × 10 8 tons. The import of liquefied natural gas (LNG) and pipeline gas is 425 × 10 8 m 3, accounting for about 28.9% of
Energy storage complementary control method for wind‐solar storage combined power generation system under opportunity constraint. is negatively correlated, and the convergence effect can be.
The club convergence effect and matching degree analysis on energy consumption intensity and production density: Evidence from the data of 2000–2020 in China VAR, and panel data techniques [27], present fresh evidence on the convergence trend of energy, water, and food per capita consumption levels for 108 nations from
This paper recommends chaotic fast convergence evolutionary programming (CFCEP) for solving real-world dynamic economic dispatch (DED) with demand-side management (DSM) incorporating renewable energy sources and pumped-storage hydroelectric unit. Here, solar–wind–thermal energy system has been
Federated learning (FL) are challenging for low-end Internet of Things (IoT) devices with limited energy storage. In this letter, to solve this difficulty, Base Station (BS) uses simultaneous wireless information and power transfer (SWIPT) to spread the global model and charge every device during each FL round. The convergence gap of SWIPT-based
Among these five types of energy storage, flywheel, supercapacitor, and superconducting energy storage are costlier and have a comparatively short discharging time. Therefore, they are only suitable to use occasionally in systems that require frequent charging and discharging, especially the adjustment of fast fluctuating power.
The rhizosphere has been observed to both enrich and deplete soil microorganisms, but it remains unclear whether rhizosphere microorganisms of the same species exhibit convergence in different climatic regions. This study employed high-throughput sequencing technology to analyze the bacterial communities in the soil,
In the context of energy shortage and environmental pollution problems, the integrated energy system is important for achieving energy transition and reducing carbon
Energy Storage and Conversion (ESC) is an open access peer-reviewed journal, and focuses on the energy storage and conversion of various energy source. As a clean energy, thermal energy, water energy, wind energy, ammonia energy, etc., has
We depict the landscape of convergence between digital and energy storage technologies based on a patent co-classification analysis and investigate the
Using salt caverns for underground gas storage (UGS) is an important energy storage solution. A coupled aero-thermo-mechanical (ATM) model with an integrated wellbore–3D realistic cavern geometry was established to investigate the thermodynamic behaviour of natural gas and the thermo-mechanical response of rock
1. Introduction. With the increasing use of fossil fuels, thermal energy storage (TES) devices have emerged as a viable energy-efficient solution [1, 2].The supply and demand for different renewable energy resources such as solar energy, wind energy, and hydroelectric energy have been shown to be incompatible in terms of location and time.
The valve-point effect, proscribed workable area and ramp rate constraints of conventional thermal generators are considered. Reserve cost and penalty cost of over and under estimation of renewable energy sources are considered. Pumped hydro energy storage is used for alleviating fluctuations in generation and supply.
Based on per capita energy consumption data from 243 prefecture-level cities in China, this paper uses a nonlinear time-varying factor model and clustering algorithm to test the club convergence
Energy storage can affect market prices by reducing price volatility and mitigating the impact of renewable energy intermittency on the power system. For example, energy
Various energy storage (ES) systems including mechanical, electrochemical and thermal system storage are discussed. Major aspects of these technologies such as the round
To address the broad landscape of emerging and future energy storage applications, JCESR turned from its former top-down approach pursuing specific battery
Under the background of high proportion of new energy connected to the distribution network, distributed energy storage participation in demand response has become an effective measure to improve the active support capability of new energy power generation and the level of safe and stable operation of the system. However, the direct participation
DOI: 10.1016/j.ijhydene.2024.01.103 Corpus ID: 266987774; Investigating diffusion and convergence trajectory of hydrogen storage technology based on patent analysis @article{Gao2024InvestigatingDA, title={Investigating diffusion and convergence trajectory of hydrogen storage technology based on patent analysis}, author={Jun Gao and
1. Introduction. With the promotion of renewable energy generation, e.g. photovoltaics (PVs) and wind turbines (WTs), a large number of users are transformed into prosumers with a dual role of producer and consumer [1].Since the large amount of PVs and WTs feed-in may adversely affect the operation of the main grid, the feed-in tariffs are
The convergence of the solution is verified at each time step, and the convergence criteria for the residuals of the continuity equation, velocity components and energy equation are 10 −5, 10 −5 and 10 −7, respectively. Furthermore, the simulation is terminated when the value of the liquid fraction reaches to 0.99.
Energy storage complementary control method for wind‐solar storage combined power generation system under opportunity constraint. is negatively correlated, and the convergence effect can be.
Since 26 out of the 28 countries are members of the Council of Europe Development Bank (CEB), in order to investigate the possible heterogenous effects on energy poverty convergence in different country groups, this paper divides the data sample into two groups, i.e., a target-country group (13 CEB target countries included) and a non
The implementation of energy storage in renewable energy systems is necessary due to the intermittent nature of some renewable energy technologies such as wind energy and solar energy [104,105,106
Safe and flexible hydrogen storage technology (HST) emerges as a crucial element in driving the industrialization of hydrogen energy. Consequently, HSTs are being extensively investigated globally, with an increasing number diffusing beyond national boundaries through transnational patent applications.
This work is supported by National Natural Science Foundation of China (No.?51777197) Research on the Mechanism and Application of Convergence Effect of Distributed Energy Storage System; State Grid Corporation of Science and Technology Project Research on Energy Storage System Modeling and Simulation and Optimal Configuration
Energy transition, as a crucial aspect of the country''s high-value-added economic development, involves the construction of an energy transition index system and empirical analysis using methods such as the entropy weighting method, kernel density estimation, Markov chain, Dagum Gini coefficient, σ-convergence, and β-convergence.
The effects of Mn2+doping content and sintering condition on the microstructure, dielectric, and energy storage properties of BSTM ceramics were studied and discussed. Compared with undoped samples, the Mn doping with a low concentration of x < 0.005 mol can effectively reduce the average grain size of BSTM ceramics when
The rational planning of an energy storage system can realize full utilization of energy and reduce the reserve capacity of a distribution network, bringing the large-scale convergence effect of distributed energy storage and improving the power supply security and11
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