Thermal design of latent heat thermal energy storage facility with supercritical CO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F21%3AN0000114" target="_blank" >RIV/26722445:_____/21:N0000114 - isvavai.cz</a>

Výsledek na webu

<a href="https://duepublico2.uni-due.de/servlets/MCRFileNodeServlet/duepublico_derivate_00073954/sCO2_2021.pdf" target="_blank" >https://duepublico2.uni-due.de/servlets/MCRFileNodeServlet/duepublico_derivate_00073954/sCO2_2021.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17185/duepublico/73950" target="_blank" >10.17185/duepublico/73950</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal design of latent heat thermal energy storage facility with supercritical CO2

Popis výsledku v původním jazyce

Conversion of electric power to heat and from the stored heat back to power is the energy storage concept that allows high temperature and high‑capacity accumulation (hundreds of MWh stored in the heat). Combination of the high temperature heat storage with use of the sCO2 energy conversion cycle may provide highly efficient and very flexible energy storage system. An aluminum alloy was identified as a suitable accumulation material for the latent heat storage due to its high latent heat, appropriate melting point (577°C) and acceptable price. The energy storage system with Al‑Si12 alloy as the heat storage material and the sCO2 conversion cycle is being developed at CVR. In this paper, design of a mock‑up of the storage tank with the aluminum alloy, an electrical heating system and a sCO2 heat exchanger will be presented. The storage tank with capacity of 300 kWht will be fabricated, connected to the sCO2 experimental loop of CVR and operated at the relevant conditions to demonstrate capabilities of the energy storage concept. A thermal computational model that was developed to support design and optimization of the sCO2/metal heat exchanger will be also presented. Based on the computational model results, feasibility of this concept for the high capacity energy storage will be discussed.

Název v anglickém jazyce

Thermal design of latent heat thermal energy storage facility with supercritical CO2

Popis výsledku anglicky

Conversion of electric power to heat and from the stored heat back to power is the energy storage concept that allows high temperature and high‑capacity accumulation (hundreds of MWh stored in the heat). Combination of the high temperature heat storage with use of the sCO2 energy conversion cycle may provide highly efficient and very flexible energy storage system. An aluminum alloy was identified as a suitable accumulation material for the latent heat storage due to its high latent heat, appropriate melting point (577°C) and acceptable price. The energy storage system with Al‑Si12 alloy as the heat storage material and the sCO2 conversion cycle is being developed at CVR. In this paper, design of a mock‑up of the storage tank with the aluminum alloy, an electrical heating system and a sCO2 heat exchanger will be presented. The storage tank with capacity of 300 kWht will be fabricated, connected to the sCO2 experimental loop of CVR and operated at the relevant conditions to demonstrate capabilities of the energy storage concept. A thermal computational model that was developed to support design and optimization of the sCO2/metal heat exchanger will be also presented. Based on the computational model results, feasibility of this concept for the high capacity energy storage will be discussed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

<a href="/cs/project/TK02030059" target="_blank" >TK02030059: Efekt - Vývoj inovativních systémů pro efektivní akumulaci energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Conference Proceedings of the 4th European sCO2 Conference 2021

ISBN

—

ISSN

2510-7852

e-ISSN

—

Počet stran výsledku

9

Strana od-do

88-96

Název nakladatele

Universität Duisburg-Essen

Místo vydání

Essen

Místo konání akce

online

Datum konání akce

23. 3. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—