Thermodynamic analysis of compressed CO2 energy storage in salt caverns with gravel stabilization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00371594" target="_blank" >RIV/68407700:21220/24:00371594 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.est.2024.110509" target="_blank" >https://doi.org/10.1016/j.est.2024.110509</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.est.2024.110509" target="_blank" >10.1016/j.est.2024.110509</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermodynamic analysis of compressed CO2 energy storage in salt caverns with gravel stabilization

Popis výsledku v původním jazyce

Efficient energy storage with large capacity is necessary for the future development of the energy sector, which will be partly based on renewable energy sources. These energy sources are variable in both time and space and surplus energy must be stored at times of high output and extracted when necessary. At present, pumped storage plants and, to a lesser extent, compressed air storage are such storage facilities. In this study, a thermodynamic analysis of energy storage with compressed CO2 in a closed system of two caves is performed. In addition, to increase the thermodynamic efficiency, this system is equipped with gravel as a thermal capacity term. Results from more than 420 configurations show that such a storage system can achieve efficiencies of over 60% and powers of over 100 MW depending on boundary conditions. The maximum electrical energy that can be generated reaches around 600 MWh. This system shows higher efficiency using CO2 than an air system without the need for above-ground heat storage installation. Aspects affecting the performance, efficiency, and capacity of the storage system are described in detail in the paper.

Název v anglickém jazyce

Thermodynamic analysis of compressed CO2 energy storage in salt caverns with gravel stabilization

Popis výsledku anglicky

Efficient energy storage with large capacity is necessary for the future development of the energy sector, which will be partly based on renewable energy sources. These energy sources are variable in both time and space and surplus energy must be stored at times of high output and extracted when necessary. At present, pumped storage plants and, to a lesser extent, compressed air storage are such storage facilities. In this study, a thermodynamic analysis of energy storage with compressed CO2 in a closed system of two caves is performed. In addition, to increase the thermodynamic efficiency, this system is equipped with gravel as a thermal capacity term. Results from more than 420 configurations show that such a storage system can achieve efficiencies of over 60% and powers of over 100 MW depending on boundary conditions. The maximum electrical energy that can be generated reaches around 600 MWh. This system shows higher efficiency using CO2 than an air system without the need for above-ground heat storage installation. Aspects affecting the performance, efficiency, and capacity of the storage system are described in detail in the paper.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

2352-1538

Svazek periodika

82

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

001166385800001

EID výsledku v databázi Scopus

2-s2.0-85184785612