scholarly journals The Effect of Dynamic Cold Storage Packed Bed on Liquid Air Energy Storage in an Experiment Scale

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 36
Author(s):  
Yong Bian ◽  
Chen Wang ◽  
Yajun Wang ◽  
Run Qin ◽  
Shunyi Song ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cold Storage ◽  
Large Scale ◽  
Dynamic Performance ◽  
Packed Bed ◽  
System Level ◽  
Heat Transfer Fluid ◽  
Cold Energy ◽  
Liquefaction Process ◽  
Storage Technologies

Liquid air energy storage (LAES) is one of the most promising large-scale energy storage technologies for the decarburization of networks. When electricity is needed, the liquid air is utilized to generate electricity through expansion, while the cold energy from liquid air evaporation is stored and recovered in the air liquefaction process. The packed bed filled with rocks/pebbles for cold storage is more suitable for real-world application in the near future compared to the fluids for cold storage. A standalone LAES system with packed bed energy storage is proposed in our previous work. However, the utilization of pressurized air for heat transfer fluid in the cold storage packed bed (CSPB) is confusing, and the effect of the CSPB on the system level should be further discussed. To address these issues, the dynamic performance of the CSPB is analyzed with the physical properties of the selected cold storage materials characterized. The system simulation is conducted in an experiment scale with and without considering the exergy loss of the CSPB for comparison. The simulation results show that the proposed LAES system has an ideal round trip efficiency (RTE) of 39.38–52.91%. With the consideration of exergy destruction of the CSPB, the RTE decreases by 19.91%. Furthermore, increasing the cold storage pressure reasonably is beneficial to the exergy efficiency of the CSPB, whether it is non-supercritical (0.1 MPa–3 MPa) or supercritical (4 MPa–9 MPa) air. These findings will give guidance and prediction to the experiments of the LAES and finally promote the development of the industrial application.

Dynamic Performance Analysis of Large-Scale Packed Bed Truncated Conical Thermal Energy Storage

2019 ◽  
Author(s):  
Shobhana Singh ◽  
Kim Sørensen
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Storage System ◽  
Transient Behavior ◽  
Packed Bed ◽  
Energy Storage System ◽  
Heat Transfer Fluid ◽  
Design Parameters ◽  
Wide Range ◽  
Dynamic Performance Analysis

Abstract In the present paper, a high-temperature packed bed energy storage system of volume 175,000m3 is numerically investigated. The system is a underground packed bed of truncated conical shape, which comprises of rocks as a storage medium and air as a heat transfer fluid. A one-dimensional, two-phase model is developed to simulate the transient behavior of the storage. The developed model is used to conduct a parametric study with a wide range of design parameters to investigate the change in performance during both charging and discharging operation. Results show that the model satisfactorily predicts the dynamic behavior, and the truncated conical shaped storage with a rock diameter of 3cm, insulation thickness up to 0.6m and charging-discharging rate of 553kg/s leads to lower thermal losses and higher energy efficiencies. The paper provides useful insight into the transient performance and efficiency of a large-scale packed bed energy storage system within the range of parameters investigated.

Trust is Good, Control is Better: A Review on Monitoring and Characterization Techniques for Flow Battery Electrolytes

2021 ◽  
Author(s):  
Ulrich Sigmar Schubert ◽  
Oliver Nolte ◽  
Ivan Volodin ◽  
Christian Stolze ◽  
Martin D. Hager
Keyword(s):  
Energy Storage ◽  
Electricity Generation ◽  
Large Scale ◽  
Good Control ◽  
Renewable Electricity ◽  
Flow Battery ◽  
Large Share ◽  
Characterization Techniques ◽  
Renewable Electricity Generation ◽  
Storage Technologies

Flow Batteries (FBs) currently are one of the most promising large-scale energy storage technologies for energy grids with a large share of renewable electricity generation. Among the main technological challenges...

A review of energy storage technologies for large scale photovoltaic power plants

2020 ◽  
Vol 274 ◽  
pp. 115213 ◽  
Author(s):  
Eduard Bullich-Massagué ◽  
Francisco-Javier Cifuentes-García ◽  
Ignacio Glenny-Crende ◽  
Marc Cheah-Mañé ◽  
Mònica Aragüés-Peñalba ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Plants ◽  
Large Scale ◽  
Photovoltaic Power ◽  
Storage Technologies

Cold energy storage in a packed bed of novel graphite/PCM composite spheres

Energy ◽  
2019 ◽  
Vol 171 ◽  
pp. 296-305 ◽  
Author(s):  
Refat Al-Shannaq ◽  
Brent Young ◽  
Mohammed Farid
Keyword(s):  
Energy Storage ◽  
Packed Bed ◽  
Cold Energy

scholarly journals The potential for microfluidics in electrochemical energy systems

2016 ◽  
Vol 9 (11) ◽  
pp. 3381-3391 ◽  
Author(s):  
M. A. Modestino ◽  
D. Fernandez Rivas ◽  
S. M. H. Hashemi ◽  
J. G. E. Gardeniers ◽  
D. Psaltis
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Energy Systems ◽  
Electrochemical Devices ◽  
Storage Technologies ◽  
Conversion Efficiencies ◽  
Electrochemical Energy

Energy storage technologies based on microfluidic electrochemical devices show optimal conversion efficiencies, and have potential to reach large-scale applications.

scholarly journals NASICON-Structured NaTi2(PO4)3 for Sustainable Energy Storage

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Mingguang Wu ◽  
Wei Ni ◽  
Jin Hu ◽  
Jianmin Ma
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Low Cost ◽  
Rate Capability ◽  
Sodium Ion ◽  
High Rate ◽  
Storage Technologies ◽  
Scale Grid ◽  
Hybrid Capacitors ◽  
Aqueous Batteries

Abstract Several emerging energy storage technologies and systems have been demonstrated that feature low cost, high rate capability, and durability for potential use in large-scale grid and high-power applications. Owing to its outstanding ion conductivity, ultrafast Na-ion insertion kinetics, excellent structural stability, and large theoretical capacity, the sodium superionic conductor (NASICON)-structured insertion material NaTi2(PO4)3 (NTP) has attracted considerable attention as the optimal electrode material for sodium-ion batteries (SIBs) and Na-ion hybrid capacitors (NHCs). On the basis of recent studies, NaTi2(PO4)3 has raised the rate capabilities, cycling stability, and mass loading of rechargeable SIBs and NHCs to commercially acceptable levels. In this comprehensive review, starting with the structures and electrochemical properties of NTP, we present recent progress in the application of NTP to SIBs, including non-aqueous batteries, aqueous batteries, aqueous batteries with desalination, and sodium-ion hybrid capacitors. After a thorough discussion of the unique NASICON structure of NTP, various strategies for improving the performance of NTP electrode have been presented and summarized in detail. Further, the major challenges and perspectives regarding the prospects for the use of NTP-based electrodes in energy storage systems have also been summarized to offer a guideline for further improving the performance of NTP-based electrodes.

Numerical Study of Thermochemical Storage Using Ca(OH)2/CaO: High Temperature Applications

2016 ◽  
Author(s):  
Qasim A. Ranjha ◽  
Nasser Vahedi ◽  
Alparslan Oztekin
Keyword(s):  
Heat Transfer ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Numerical Study ◽  
Storage System ◽  
Packed Bed ◽  
Heat Transfer Fluid ◽  
Operational Parameters ◽  
Storage And Retrieval

Thermal energy storage by reversible gas-solid reaction has been selected as a thermochemical energy storage system. Simulations are conducted to investigate the dehydration of Ca(OH)2 and the hydration of CaO for thermal energy storage and retrieval, respectively. The rectangular packed bed is heated indirectly by air used as a heat transfer fluid (HTF) while the steam is transferred through the upper side of the bed. Transient mass transport and heat transfer equations coupled with chemical kinetics equations for a two dimensional geometry have been solved using finite element method. Numerical results have been validated by comparing against results of previous measurements and simulations. The effect of geometrical and operational parameters including the material properties on overall storage and retrieval process has been investigated. The co-current and counter-current flow arrangements for steam and heat transfer fluid have been considered.

Freestanding highly defect nitrogen-enriched carbon nanofibers for lithium ion battery thin-film anodes

2017 ◽  
Vol 5 (11) ◽  
pp. 5532-5540 ◽  
Author(s):  
Guoqiang Tan ◽  
Wurigumula Bao ◽  
Yifei Yuan ◽  
Zhun Liu ◽  
Reza Shahbazian-Yassar ◽  
...  
Keyword(s):  
Thin Film ◽  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Carbon Nanofibers ◽  
Large Scale ◽  
Lithium Ion ◽  
High Energy ◽  
Storage Technologies ◽  
Power Densities ◽  
Cycling Life

To transform lithium ion batteries into large-scale energy storage technologies, high energy/power densities and long cycling life of carbon-based anodes must be achieved.

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