Small-scale adiabatic compressed air energy storage: Control strategy analysis via dynamic modelling

Mucci, Simone; Bischi, Aldo; Briola, Stefano; Baccioli, Andrea

doi:10.1016/j.enconman.2021.114358

Cited by 29 publications

(5 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several thermodynamic studies [13][14][15][16][17][18][19] are calculating A-CAES cycle efficiencies which arein some cases significantlybelow the cycle efficiency range according to Kreid [9] (Figure 2). A closer look at the corresponding plant layouts shows that in these the CAS volumes are operated within a relatively wide pressure range (Table A.1).…”

Section: Cycle Efficiencymentioning

confidence: 99%

Low-temperature compressed air energy storage with reversibly operable turbo- and piston machines

Hadam,

Budt

2024

Entropie

View full text Add to dashboard Cite

Adiabatic compressed air energy storage (A-CAES) is a promising storage technology to face the challenges of high shares of renewable energies in an energy system by storing electric energy for periods of several hours up to weeks. In order to reduce the investment costs and increase the flexibility of the storage system, the so called KompEx LTA-CAES ® was developed by Fraunhofer UMSICHT. This new A-CAES concept is using a combination of reversibly operable turbo-and piston machines (KompEx machines). Doing so, these modules can achieve wide CAS pressure ranges (corresponding to high exergy densities) and thus can be combined with any compressed air storage volume. To realize efficient and stable operation despite a wide pressure range, a suitable control strategy of both KompEx machines is required. This paper investigates the introduced A-CAES system by a dynamic simulation, focusing on the interaction and synergy between the reversibly operable turbo-and piston machines. Results indicate that the roundtrip efficiency of this system is expected to be at the low end (55,5%) of literature values for A-CAES (52-66% for low-temperature A-CAES), which is relatively high compared to published A-CAES systems considering similar pressure ranges. KEYWORDS.

show abstract

Section: Cycle Efficiencymentioning

confidence: 99%

Low-temperature compressed air energy storage with reversibly operable turbo- and piston machines

Hadam,

Budt

2024

Entropie

View full text Add to dashboard Cite

show abstract

“…The global experience of operating CAES (mainly in Germany and the USA), coupled with a noticeable trend towards the development of this area, shows a great interest in using such peak or near-peak units [18][19][20]. The purpose of this publication is to analyze the experience of application, potential, and prospects for the creation of energy storage devices based on compressed-air energy storage and hydrogen [21,22].…”

Section: Relevance Of the Researchmentioning

confidence: 99%

Prospects of Hydrogen Application as a Fuel for Large-Scale Compressed-Air Energy Storages

Iliev,

Fedyukhin,

Semin

et al. 2024

Energies

View full text Add to dashboard Cite

A promising method of energy storage is the combination of hydrogen and compressed-air energy storage (CAES) systems. CAES systems are divided into diabatic, adiabatic, and isothermal cycles. In the diabatic cycle, thermal energy after air compression is discharged into the environment, and the scheme implies the use of organic fuel. Taking into account the prospects of the decarbonization of the energy industry, it is advisable to replace natural gas in the diabatic CAES scheme with hydrogen obtained by electrolysis using power-to-gas technology. In this article, the SENECA-1A project is considered as a high-power hybrid unit, using hydrogen instead of natural gas. The results show that while keeping the 214 MW turbines powered, the transition to hydrogen reduces carbon dioxide emissions from 8.8 to 0.0 kg/s, while the formation of water vapor will increase from 17.6 to 27.4 kg/s. It is shown that the adiabatic CAES SENECA-1A mode, compared to the diabatic, has 0.0 carbon dioxide and water vapor emission with relatively higher efficiency (71.5 vs. 62.1%). At the same time, the main advantage of the diabatic CAES is the possibility to produce more power in the turbine block (214 vs. 131.6 MW), having fewer capital costs. Thus, choosing the technology is a subject of complex technical, economic, and ecological study.

show abstract

“…A simulation model has been developed with the software Simcenter Amesim 2019, able to predict the mass flow rate of steam used for heating the moulds, the pressures and the state of the fluid (liquid or steam) at the outlet of the bottom please and at the outlet of the bladder. This software tool allows the use of ready-to-use multi-physics libraries, including libraries for thermal management and fluid system simulation [35]. The software implements a lumped parameter transient numerical model which can simulate the transient operation of a heat pipe where a fluid flows.…”

Section: A Numerical Simulation Modelmentioning

confidence: 99%

Energy Efficiency of the Vulcanization Process of a Bicycle Tyre

Pentakota¹,

Albertelli

Strano

2023

Int. J. of Precis. Eng. and Manuf.-Green Tech.

View full text Add to dashboard Cite

The production of tyres is one of the most energy consuming manufacturing activities in the rubber sector. In the production cycle of a tyre, the curing operation has the maximum energy loss. This is mostly due to the extensive use of steam as a source of heat and pressure in the vulcanization process. To the author’s knowledge, no scientific work is available in the literature where the energy efficiency of a tyre vulcanization press is estimated by means of a comprehensive model of all main components, including the moulds, the press with its heated plates, the bladder and, of course, the tyre. The present work aims at filling this gap. First, the press used for developing the model is described, along with its components and its typical product, a bicycle tyre. The instruments used for measuring flow rates, temperatures and pressures are also listed. Then, a numerical model is presented, that predicts the energy transfers occurring in the vulcanization press during a full process cycle. The numerical model, developed with the software Simcenter Amesim 2021.1, has been validated by means of measurements taken at the press. The results indicate that the amount of energy which is actually consumed by the tyre for its reticulation process amounts to less than 1% of the total energy expenditure. The paper demonstrates that the tyre industry is in urgent need of an electrification conversion of the traditional steam-based processes.

show abstract

Small-scale adiabatic compressed air energy storage: Control strategy analysis via dynamic modelling

Cited by 29 publications

References 28 publications

Low-temperature compressed air energy storage with reversibly operable turbo- and piston machines

Low-temperature compressed air energy storage with reversibly operable turbo- and piston machines

Prospects of Hydrogen Application as a Fuel for Large-Scale Compressed-Air Energy Storages

Energy Efficiency of the Vulcanization Process of a Bicycle Tyre

Contact Info

Product

Resources

About