scholarly journals ABOUT THE POSSIBILITY OF APPLICATION OF ENERGY STORAGE IN IMPACT MACHINES

2021 ◽  
Vol 2 (4) ◽  
pp. 181-189
Author(s):  
Dmitriy O. Cheshchin ◽  
Vadim V. Plokhikh ◽  
Andrey K. Tkachuk
Keyword(s):  
Energy Storage ◽  
Simulation Modeling ◽  
Software Package ◽  
Operating Conditions ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Advantages And Disadvantages ◽  
Working Cycle ◽  
Robotic Drilling ◽  
Hydraulic Hammer

The article discusses the possibility of using energy storage devices in the form of pneumatic and mechanical springs for hydraulic percussion machines as part of robotic drilling systems. New design schemes are proposed that allow changing the energy parameters of the machine in accordance with the external operating conditions for the implementation of adaptive technological processes. Simulation modeling of the proposed schemes in the ITI SimulationX software package made it possible to determine the dynamic parameters and study the working cycle of the hydraulic hammer. The analysis of the results obtained showed the possibility of creating these types of machines, taking into account their advantages and disadvantages.

scholarly journals Research on molecular energy storage

2021 ◽  
Vol 1 (3) ◽  
pp. 49-56
Author(s):  
S.M. Zuyev ◽  
◽  
R.A. Maleyev ◽  
YU.M. Shmatkov ◽  
M.YU. Khandzhalov ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Energy Storage ◽  
Lithium Ion Battery ◽  
Double Layer ◽  
Lithium Ion ◽  
Storage Device ◽  
Energy Storage Device ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Advantages And Disadvantages

This article provides a comparative analysis of various energy storage devices. A detailed review and analysis of molecular energy storage units is carried out, their main characteristics and parame-ters, as well as their application areas, are determined. The main types of molecular energy storage are determined: electric double layer capacitors, pseudo capacitors, hybrid capacitors. Comparison of the characteristics of various batteries is given. The parameters of various energy storage devices are presented. The analysis of molecular energy storage devices and accumulators is carried out. Ttheir advantages and disadvantages are revealed. It has been shown that molecular energy storage or double layer electrochemical capacitors are ideal energy storage systems due to their high specific energy, fast charging and long life compared to conventional capacitors. The article presents oscillograms of a lithium-ion battery with a voltage of 10.8 V at a pulsed load current of 2A of a laptop with and without a molecular energy storage device, as well as oscil-lograms of a laptop with DVD lithium-ion battery with a voltage of 10.8 V with a parallel shutdown of a molecular energy storage device with a capacity of 7 F and without it. The comparative analysis shows that when the molecular energy storage unit with a 7 F capacity is switched on and off, transient processes are significantly improved and there are no supply voltage dips. The dependenc-es of the operating time of a 3.6 V 600 mAh lithium-ion battery at a load of 2 A for powering mo-bile cellular devices with and without a molecular energy storage are given. It is shown that when the molecular energy storage device is switched on, the battery operation time increases by almost 20%.

scholarly journals Analysis of the influence of train timetable on energy consumption on the metro line

2018 ◽  
Vol 180 ◽  
pp. 05001
Author(s):  
Sławomir Barański ◽  
Marcin Steczek
Keyword(s):  
Energy Consumption ◽  
Energy Storage ◽  
Operating Conditions ◽  
Transport Systems ◽  
Voltage Source ◽  
Storage Device ◽  
Basic Solution ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Traction Substations

The latest technical solutions provide new opportunities for reducing energy consumption in electrified transport systems. The basic solution is to eliminate vehicles based on resistor start-up system and replace them with vehicles equipped with semiconductor based converter propulsion system (choppers and voltage source inverters). This type of drive also allows to recover energy (recuperation) from train braking, which is repeated very often case of metro lines. The problem is to find the receiver for this energy while the vehicle is braking. Large opportunities are also available when using various types of energy storage devices: stationary installed on the side of traction line and mobile ones used on-board the traction vehicles. Choosing the type of energy storage device for operating conditions, their capacity and the location of installation are complex optimization processes. This type of solution involves significant financial input, which reimbursement is spread over a long period of time. Therefore, it seems rational to seek solutions with limited financial outlay. This paper presents a solution analysis of adjusting the timetable and timeshifts between vehicle streams on the metro line to increase the efficiency of energy recovery of regenerative braking vehicles. This operation will reduce the amount of energy consumption by vehicles from the traction substations. The results presented in the paper were obtained by computer simulation of operation on the first line of the Warsaw subway, assuming that there was no energy storage devices and traction substations were operating without recuperation of the energy to the power system.

scholarly journals Recent Advancements of N-Doped Graphene for Rechargeable Batteries: A Review

Crystals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1080
Author(s):  
Rabia Ikram ◽  
Badrul Mohamed Jan ◽  
Syed Atif Pervez ◽  
Vassilis M. Papadakis ◽  
Waqas Ahmad ◽  
...  
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Storage Systems ◽  
Rechargeable Batteries ◽  
Energy Storage Systems ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Advantages And Disadvantages ◽  
Graphene Synthesis ◽  
Doped Graphene

Graphene, a 2D carbon structure, due to its unique materials characteristics for energy storage applications has grasped the considerable attention of scientists. The highlighted properties of this material with a mechanically robust and highly conductive nature have opened new opportunities for different energy storage systems such as Li-S (lithium-sulfur), Li-ion batteries, and metal-air batteries. It is necessary to understand the intrinsic properties of graphene materials to widen its large-scale applications in energy storage systems. In this review, different routes of graphene synthesis were investigated using chemical, thermal, plasma, and other methods along with their advantages and disadvantages. Apart from this, the applications of N-doped graphene in energy storage devices were discussed.

scholarly journals Investigation on Statistical Sizing Schemes for Hybrid Energy Storage Systems

2018 ◽  
pp. 1-16
Author(s):  
Chao -Tsung Ma ◽  
Chin -Lung Hsieh
Keyword(s):  
Solar Wind ◽  
Energy Storage ◽  
Capacity Planning ◽  
Storage Systems ◽  
Power Level ◽  
Operating Conditions ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Hybrid Energy ◽  
Hybrid Energy Storage

This paper explores the power and capacity planning problems in hybrid energy storage systems (HESS) used in grid-connected solar/wind power systems using statistical analysis and numerical methods. A proper HESS operation and power management system allows for real-time power distribution control with the required system dynamic response and the characteristics of the internal energy storage devices. The goal of instantaneous power allocation of HESS is to effectively manage the state of charge (SOC), power level, and operating conditions of its internal energy storage devices to achieve optimal efficiency and capacity optimisation. The HESS power and capacity planning method discussed in this paper can be used in most HESS planning cases on a given set of system operating conditions. In order to present the feasibility of the proposed method, the HESS application case discussed in this paper aims to smooth the power fluctuation of wind            and solar power generations and simultaneously ensure the specified dispatching power level               and quality. In this paper, HESS cases analysis and numerical comparison studies are carried out with a typical solar/wind power generation system corresponding to two different power dispatching levels.

scholarly journals REVIEW AND JUSTIFICATION OF THE ENERGY STORAGE DEVICES SELECTION FOR ELECTRIC POWER FACILITIES OPERATION

2020 ◽  
pp. 198-209
Author(s):  
Dmytro Zakharchenko ◽  
◽  
Serhii Stepenko ◽  
Keyword(s):  
Energy Storage ◽  
Environmental Impact ◽  
Service Life ◽  
Unit Cost ◽  
Electric Energy ◽  
Optimal Choice ◽  
Energy Storage Devices ◽  
Electricity Storage ◽  
Storage Devices ◽  
Advantages And Disadvantages

Urgency of the research.The study of electricity storage for the operation of power facilities, characteristics and their consideration when choosing the type of storage for the facility will optimize the system as a whole.Target setting.Scientific and technical development and the environmental situation make more stringent requirements for the power system.Actual scientific researches and issues analysis.The classification and main characteristics of existing energy storage devices, their main advantages and disadvantages are considered.Uninvestigated parts of general matters defining. ThereThe main problem with the use of new types of electricity storage is the lack of their widespread use in the market of electricity facilities.The research objective.The aim of the work is to develop a methodology for determining the optimal type and model of universal electricity storage and analysis of its advantages and disadvantages.The statement of basic materials. The analysis of existing types of electric energy storage devices and their characteristics is carried out. Methods are proposed that are based on a comparison of unit cost, volume capacity, environmental impact and service life. The main differences of each type of electricity storage, their advantages and disadvantages are analyzed.Conclusions.The proposed method is based on a comparison of unit cost, volume capacity, environmental impact and service life. The main differences of each type of electricity storage, their advantages and disadvantages are analyzed. Using the proposed technique, the optimal choice of electricity storage for power facilities is made.

scholarly journals MANAGEMENT STRATEGIES FOR ENERGY PROCESSES IN ELECTRIC ROLLING STOCK WITH ON-BOARD ENERGY STORAGE DEVICES

2021 ◽  
Vol 1 (38) ◽  
pp. 63-79
Author(s):  
A. Sulym ◽  
P. Khozia
Keyword(s):  
Energy Storage ◽  
Energy Exchange ◽  
Management Strategies ◽  
Rolling Stock ◽  
Energy Storage Devices ◽  
Capacitive Energy Storage ◽  
Storage Devices ◽  
Advantages And Disadvantages ◽  
Exchange Processes ◽  
Electric Rolling Stock

The article deals with the main existing strategies for management strategy of energy exchange processes in the electric rolling stock with onboard capacitive energy storage devices. When considering strategies, it is assumed that the onboard capacitive storage has low power and capacitance. Therefore, this capacitor storage is not able to accept the full amount of regenerative braking energy of the electric rolling stock. The purpose of the paper is to consider and analyze management strategies for energy exchange processes in the electric rolling stock with onboard capacitive energy storages; to define the advantages and disadvantages of each of the existing strategies and propose a concept for the effective management of energy exchange processes in the electric rolling stock. The block diagram of electric rolling stock with the onboard capacitive energy storage which is used for the analysis of management strategies for energy exchange processes is presented. The modes of operation of electric rolling stock with onboard capacitive energy storages are described. Five main strategies for management of energy exchange processes on the electric rolling stock with onboard capacitive energy storages are determined. The advantages and disadvantages of each strategy are set out taking into account the given conditions (characteristics of the electric rolling stock, conditions of the rolling stock motion, oscillograph charts, etc.). The general advantages and shortcomings of each strategy are defined, which allowed to propose the concept of creating an adaptive strategy for managing energy exchange processes in electric rolling stock with onboard capacitive energy storages. The main concept of this management strategy is to implement efficient energy exchange between the traction equipment, the onboard capacitive energy storage, the overhead contact system, both in normal and emergency modes of traction power supply, taking into account the dynamics of energy exchange processes in the overhead contact system, which will generally allow safety and energy efficiency of the transportation process. The obtained research results will contribute to the development and implementation of effective strategies for managing energy exchange processes in the electric rolling stock.

scholarly journals Selection of electricity storage devices for mobile DC traction substations

2021 ◽  
Vol 2131 (4) ◽  
pp. 042082
Author(s):  
O A Stepanskaya ◽  
N D D’yachkova ◽  
A B Batrashov
Keyword(s):  
Energy Storage ◽  
Power Supply ◽  
Power Plants ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Advantages And Disadvantages ◽  
Traction Substations ◽  
Traction Power Supply ◽  
Supply Systems ◽  
Traction Power

Abstract The aim of the study is to review the sources covering the problems of accumulating electricity on the railways and to find new solutions to reduce the use of electricity in traction power supply system. The article analyses some existing types of electric energy storage devices (capacitive, inertial, superconducting inductive, electrochemical, fuel cells and pumped storage power plants), their common installation locations, advantages, and disadvantages. The possibility of using them in railway traction power supply systems, in particular in mobile traction substations, is also assessed. In addition, the article lists the parameters on the basis of which the optimum type of storage device can be selected for the given conditions. The study concludes that the use of some types of energy storage devices in mobile traction substations is acceptable when regenerative braking can be used at the site, and this method of energy saving can be recommended in the engineering of new or reconstruction of existing traction substations. It has been found that capacitive and inertial (flywheel) electrical energy storage units are the most suitable in terms of parameters for installation of traction power supply systems.

An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices

2020 ◽  
Vol 13 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Nana Chang ◽  
Tianyu Li ◽  
Rui Li ◽  
Shengnan Wang ◽  
Yanbin Yin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Energy Storage Devices ◽  
Storage Devices

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.

Ultrathin Carbon Nanosheets for Highly-efficient Capacitive K-ion and Zn-ion Storage

2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Metal Ion ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Capacity Retention ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
High Efficient ◽  
Ion Storage

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>

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