Large-eddy simulation of a full-scale underwater energy storage accumulator

Wang, Zhiwen; Wang, Jinshun; Cen, Haoyang; Ting, David S.‐K.; Carriveau, Rupp; Xiong, Wei

doi:10.1016/j.oceaneng.2021.109184

Cited by 8 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The general accumulator combined the advantages of traditional flexible and rigid ones. A large-eddy simulation and modal analysis of a 1000 m 3 model revealed that the risk of vortex-induced vibration fatigue damage was very low [21]. Hu et al designed flexible risers for gas transportation in UWCAES systems.…”

Section: Adiabatic Uwcaesmentioning

confidence: 99%

“…Large gas storage accumulators have a large characteristic scale and large flow Reynolds number, which may lead to fatigue damage due to vortex-induced vibration caused by currents. Wang et al studied the hydrodynamic characteristics of an underwater gas storage accumulator with a gas storage volume of 1000 m 3 under different flow conditions through fluid-structure coupling and modal analysis [21]. However, the study considers the underwater gas storage accumulator as a rigid body.…”

Section: Underwater Gas Storagementioning

confidence: 99%

“…Accumulators must withstand the loads caused by the huge buoyancy generated by a large amount of compressed gas in the water, as well as the complex marine environmental load, and even force majeure load such as undersea earthquakes and tsunamis [84]. In general, reinforced concrete structures should take advantage of their gravity ballast, and steel structures should utilize gravity ballasts or foundation structure anchorage [9,21]. Gravity ballasting is the simplest and most reliable ballasting method, which can balance the huge buoyancy of gas by increasing the self-weight of the accumulator itself.…”

Section: Underwater Gas Storagementioning

confidence: 99%

See 2 more Smart Citations

Underwater Compressed Gas Energy Storage (UWCGES): Current Status, Challenges, and Future Perspectives

Wang

Liang

et al. 2022

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Underwater compressed air energy storage was developed from its terrestrial counterpart. It has also evolved to underwater compressed natural gas and hydrogen energy storage in recent years. UWCGES is a promising energy storage technology for the marine environment and subsequently of recent significant interest attention. However, it is still immature. In this study, the latest progress in both academic and industrial fields is summarized. Additionally, challenges facing this emerging technology are analyzed. The pros and cons of UWCGES are provided and are differentiated from the terrestrial variant. Technical, economic, environmental, and policy challenges are examined. In particular, the critical issues for developing artificial large and ultra-large underwater gas storage accumulators and effective underwater gas transportation are comprehensively analyzed. Finally, the demand for marine energy storage technology is briefly summarized, and the potential application scenarios and application modes of underwater compressed gas energy storage technology are prospected. This study aims to highlight the current state of the UWCGES sector and provide some guidance and reference for theoretical research and industrial development.

show abstract

Section: Adiabatic Uwcaesmentioning

confidence: 99%

Section: Underwater Gas Storagementioning

confidence: 99%

Section: Underwater Gas Storagementioning

confidence: 99%

See 1 more Smart Citation

Underwater Compressed Gas Energy Storage (UWCGES): Current Status, Challenges, and Future Perspectives

Wang

Liang

et al. 2022

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Alternatively, energy bags can be used as reservoirs [16]. Wang et al conducted numerical modeling of the pressurized accumulator for UW-CAES applications, considering various flow conditions [17]. Through modular analyses, they determined that the natural frequency of the accumulator significantly exceeded the vortex-shedding frequency behind the pressurized reservoir, indicating a low risk of fatigue damage attributable to vortex-induced vibration.…”

Section: Introductionmentioning

confidence: 99%

Efficiency-Driven Iterative Model for Underwater Compressed Air Energy Storage (UW-CAES)

Cacciali,

Battisti,

Occello

2023

Energies

View full text Add to dashboard Cite

The competitiveness of large-scale offshore wind parks is influenced by the intermittent power generation of wind turbines, which impacts network service costs such as reserve requirements, capacity credit, and system inertia. Buffer power plants smooth the peaks in power generation, distribute electric power when the wind is absent or insufficient, and improve the capacity factor of wind parks and their profitability. By substituting the variable pressure storage with an underwater variable volume air reservoir and reducing the wastage of compression heat using liquid Thermal Energy Storage (TES), which eliminates the combustor, the plant design allows overcoming the most common drawbacks of CAES plants. Underwater Compressed Air Energy Storage (UW-CAES) plants are investigated with a thermodynamic model to drive the power plant design toward efficiency maximization. Functional maps, constrained on the plant pressure ratio and the number of compressor/turbine phases with inter-refrigerated/inter-heating phases, are drawn by solving the model iteratively for the heat exchangers’ effectiveness to meet the target turbine discharge temperature, selected in advance to avoid unfeasible mathematical solutions.

show abstract

Experimental study on the feasibility of isobaric compressed air energy storage as wind power side energy storage

Liu,

Su,

Yin

et al. 2024

Applied Energy

View full text Add to dashboard Cite

Large-eddy simulation of a full-scale underwater energy storage accumulator

Cited by 8 publications

References 42 publications

Underwater Compressed Gas Energy Storage (UWCGES): Current Status, Challenges, and Future Perspectives

Underwater Compressed Gas Energy Storage (UWCGES): Current Status, Challenges, and Future Perspectives

Efficiency-Driven Iterative Model for Underwater Compressed Air Energy Storage (UW-CAES)

Experimental study on the feasibility of isobaric compressed air energy storage as wind power side energy storage

Contact Info

Product

Resources

About