Experimental and analytical evaluation of a gas-liquid energy storage (GLES) prototype

Vallati, Andrea; Vollaro, Roberto De Lieto; Ocłoń, Paweł; Taler, Jan

doi:10.1016/j.energy.2021.120061

Cited by 13 publications

(3 citation statements)

References 18 publications

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“…With regarding to the intake or expansion portion of the liquid piston, , ia h can be calculated using the following equation [7,20,21 Re is the Reynolds number of air at the inlet of liquid piston, and can be calculated as follows:…”

Section: Caes Cycle (1) Air Compressormentioning

confidence: 99%

Energy distributing and thermodynamic characteristics of a coupling near-isothermal compressed air energy storage system

Li¹,

Tao²,

Xu³

et al. 2023

Journal of Energy Storage

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Section: Caes Cycle (1) Air Compressormentioning

confidence: 99%

Energy distributing and thermodynamic characteristics of a coupling near-isothermal compressed air energy storage system

Li¹,

Tao²,

Xu³

et al. 2023

Journal of Energy Storage

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“…In this framework, the presented work proposes an experimental analysis of a gasliquid energy storage (GLES) prototype, based on air-compressed and mineral oil. The implemented prototype is an evolution of a study [33] already carried out at the laboratories of the DIAEE Department of the University of Rome of Sapienza. In the previous system, there was a bag of nitrile containing nitrogen, which was likewise compressed through the introduction of mineral oil by a pump-motor system.…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Renewable Energy Source Production Variability in Residential Stock through Small-Scale Gas–Liquid Energy Storage Technology Application

Vallati,

Di Matteo,

Pompei

et al. 2024

Processes

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Despite renewable energy source integration being a well-established requirement in international policies, energy systems still face some unresolved issues, including the intermittence of production. To tackle this problem, a viable solution could comprise the off-peak storage of electricity production excess, to be consumed later during peak-load hours. The transition from the diffuse pattern of centralized generation to the distributed model, involving energy communities, suggests an additional aspect to manage: the spatial constraints of systems for domestic applications. Compressed-air energy storage represents a promising Power-to-Power technology for small-scale energy integration. This study proposes the application of a gas–liquid energy storage system (GLES) in a residential building, using renewable energy excess from a photovoltaic (PV) array. The performance of the proposed system, whose operation involves the compression of the gaseous mass through a piston operated by mineral oil, was evaluated through energy analysis performed simulating the devices and their coupling with the load profiles of the building. The thermodynamic model of storage was validated using data from an experimental campaign on a prototype. A sensitivity study, acting on the features of the system, such as the compression rate and vessel size, allowed us to compare the absorbed PV energy excess, the coverage of the building energy demand during the expansion phase, and the electrical efficiency of a daily cycle. The results obtained, together with the related economic analysis, were used to quantify the market potential of the proposed solution, to be exploited as a mechanical alternative to conventional electric batteries in dwellings.

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“…Electrical, thermal, and thermochemical storage are the main types of storing energy, and each of them involves a wide range of technological systems [3][4][5][6]. In addition, a promising energy storage technology involves an electrolyzing process to produce hydrogen during a period of surplus energy and resupply it to microgrids [7,8].…”

Section: Introductionmentioning

confidence: 99%

Current, Projected Performance and Costs of Thermal Energy Storage

2023

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The technology for storing thermal energy as sensible heat, latent heat, or thermochemical energy has greatly evolved in recent years, and it is expected to grow up to about 10.1 billion US dollars by 2027. A thermal energy storage (TES) system can significantly improve industrial energy efficiency and eliminate the need for additional energy supply in commercial and residential applications. This study is a first-of-its-kind specific review of the current projected performance and costs of thermal energy storage. This paper presents an overview of the main typologies of sensible heat (SH-TES), latent heat (LH-TES), and thermochemical energy (TCS) as well as their application in European countries. With regard to future challenges, the installation of TES systems in buildings is being implemented at a rate of 5%; cogeneration application with TES is attested to 10.2%; TES installation in the industry sector accounts for 5% of the final energy consumption. From the market perspective, the share of TES is expected to be dominated by SH-TES technologies due to their residential and industrial applications. With regard to the cost, the SH-TES system is typically more affordable than the LH-TES system or the TCS system because it consists of a simple tank containing the medium and the charging/discharging equipment.

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Experimental and analytical evaluation of a gas-liquid energy storage (GLES) prototype

Cited by 13 publications

References 18 publications

Energy distributing and thermodynamic characteristics of a coupling near-isothermal compressed air energy storage system

Energy distributing and thermodynamic characteristics of a coupling near-isothermal compressed air energy storage system

Mitigation of Renewable Energy Source Production Variability in Residential Stock through Small-Scale Gas–Liquid Energy Storage Technology Application

Current, Projected Performance and Costs of Thermal Energy Storage

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