Buoyancy Energy Storage Technology: An energy storage solution for islands, coastal regions, offshore wind power and hydrogen compression

Hunt, Julian David; Zakeri, Behnam; Barros, Alexandre Giulietti de; Filho, Walter Leal; Marques, Augusto Delavald; Barbosa, Paulo Sérgio Franco; Schneider, Paulo Smith; Farenzena, Marcelo

doi:10.1016/j.est.2021.102746

Cited by 40 publications

(14 citation statements)

References 47 publications

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“…Another benefit of this technology is that the sediments from the Bananal basin can easily pass through the bottom of the dam with no restriction during the wet period. Assuming a total construction cost of four billion USD for the Bananal sedimentary basin water storage project, as described in Table 4, the energy cost estimate for the project is 0.341 USD/kWh, which is 440 times smaller than the cost for energy storage in lithiumion batteries, assuming a battery cost of 150 USD/kWh [46]. Note that the excavation requirements to tap into the water stored in the sedimentary basin in P2 and P3 scenarios should be better assessed in future work.…”

Section: Energy Storage Costsmentioning

confidence: 99%

Sedimentary Basin Water and Energy Storage: A Low Environmental Impact Option for the Bananal Basin

et al. 2022

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Groundwater storage is an important water management solution that is overlooked by several countries worldwide. This paper evaluates the potential for storing water in the Bananal sedimentary basin and proposes the construction of canals to reduce sediment obstructions in the river flow and harmful flood events. This would allow for better control of the water level. The water stored in the sedimentary basin can be used as a climate change adaptation measure to ensure that the level of the flood plain is maintained high during a drought or low during an intense flood event. Additionally, the flood plain will function as a water reservoir, regulate the river flow downstream from the flood plain, and enhance hydropower generation. A significantly smaller reservoir area is expected to store water, as the water will be stored as groundwater in the sedimentary basin. Results show that the Bananal basin has the potential to store up to 49 km3 of water, which can add up to 11.7 TWh of energy storage to the Brazilian energy matrix for a CAPEX energy storage cost of 0.095 USD/kWh. This is an interesting solution for the Araguaia basin and several other basins worldwide.

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Section: Energy Storage Costsmentioning

confidence: 99%

Sedimentary Basin Water and Energy Storage: A Low Environmental Impact Option for the Bananal Basin

et al. 2022

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“… 24 Inspired by the phenomenon that the air plastron is stored in penguins' plumage and the accompanied gas transportation and bubble generation, we proposed a new bubble splitting strategy by using a well‐tailored superhydrophobic open pathway. Thanks to buoyancy, an object such as a gas bubble submerged in a liquid stores a certain amount of potential energy, which is essentially the incremental gravitational potential energy of the liquid 25 . Therefore, we hypothesize that bubble potential energy can serve as an efficient source to offset the surface energy of bubbles in the rising process, and eventually facilitate the bubble splitting process (Scheme 1b).…”

Section: Introductionmentioning

confidence: 99%

“…Thanks to buoyancy, an object such as a gas bubble submerged in a liquid stores a certain amount of potential energy, which is essentially the incremental gravitational potential energy of the liquid. 25 Therefore, we hypothesize that bubble potential energy can serve as an efficient source to offset the surface energy of bubbles in the rising process, and eventually facilitate the bubble splitting process (Scheme 1b). To realize high-efficient gas transport, we first designed and prepared a robust superhydrophobic coating with hierarchical micro/ nanostructures via a gas-bubble template-assisted fabrication method.…”

Section: Introductionmentioning

confidence: 99%

Bio‐inspired spontaneous splitting of underwater bubbles along a superhydrophobic open pathway without perturbation

Zhang

Wang

et al. 2022

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Bubbles are pervasive in aqueous media, and on account of numerous advantages of tiny bubbles, efficient bubble splitting is favorable in a wide range of applications. However, underwater bubble splitting faces a lot of challenges because bubbles tend to coalesce during the rising due to the action of buoyancy and surface energy, and the consumption of considerable external energy is needed. Inspired by the bubble bursting phenomenon on the feathers of high‐speed swimming penguins, we proposed a new bubble splitting strategy based on the energy conversion of bubble transportation on superhydrophobic open pathways. A porous superhydrophobic coating was first developed via a bubble‐template assisted fabrication method, which provides hierarchical micro/nanostructures and robust air plastron. Gas bubbles can transport along the superhydrophobic open pathways without perturbation, and split into smaller ones by taking advantage of the potential energy contributed by buoyancy. By controlling the superhydrophobic pathway, the size of the split bubbles can be controlled precisely. We also demonstrated that a bubble splitting device could be applied in underwater reactions where an enhanced gas−liquid mass transfer is desired. This bubble splitting strategy may offer new prospects for underwater bubble manipulation and unfold a potential in many bubble‐involved fields.

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“…A similar alternative that has received much attention lately is the possibility of electricity generation with Electric Truck Hydropower [43]. Reference [44] presents a review of EES technologies, including the gravel energy storage technology [45], and others [46], which are similar to the technology presented in this paper.…”

Section: Introductionmentioning

confidence: 99%

Lift Energy Storage Technology: A Solution for Decentralized Urban Energy Storage

et al. 2022

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Buoyancy Energy Storage Technology: An energy storage solution for islands, coastal regions, offshore wind power and hydrogen compression

Cited by 40 publications

References 47 publications

Sedimentary Basin Water and Energy Storage: A Low Environmental Impact Option for the Bananal Basin

Sedimentary Basin Water and Energy Storage: A Low Environmental Impact Option for the Bananal Basin

Bio‐inspired spontaneous splitting of underwater bubbles along a superhydrophobic open pathway without perturbation

Lift Energy Storage Technology: A Solution for Decentralized Urban Energy Storage

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