Speed of reaching the full potential heat capacity of a basalt product: Mathematical model based on experimental results

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00365395" target="_blank" >RIV/68407700:21220/23:00365395 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.est.2023.107026" target="_blank" >https://doi.org/10.1016/j.est.2023.107026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.est.2023.107026" target="_blank" >10.1016/j.est.2023.107026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Speed of reaching the full potential heat capacity of a basalt product: Mathematical model based on experimental results

Popis výsledku v původním jazyce

Renewable Energy Sources naturally deliver energy intermittently, causing fluctuations in energy supply. The energy is thus not provided corresponding to the actual need. With the increasing utilization of renewable energy sources, and according to energy availability, the demand for energy storage is rising. Energy storage tackles these growing problems and is therefore inevitable for a sustainable energy supply. Carnot batteries are one out of a few geographically independent storage possibilities for longer durations. A Carnot battery works in the way that electricity is stored in heat during times of overproduction and reconverted back to electricity when needed. This work focuses on the charging model of natural and cast basalt for packed bed thermal energy storage used in Carnot batteries. A mathematical model, based on experimental data of the speed of reaching the full potential heat capacity, is presented. It describes in a novel way, based on the change of heat capacity during heating and cooling, the charging and discharging behaviour of the material, independent from a possible storage layout. The model is a 4th-grade polynomial, well fitted to the data with the method of least squares.

Název v anglickém jazyce

Speed of reaching the full potential heat capacity of a basalt product: Mathematical model based on experimental results

Popis výsledku anglicky

Renewable Energy Sources naturally deliver energy intermittently, causing fluctuations in energy supply. The energy is thus not provided corresponding to the actual need. With the increasing utilization of renewable energy sources, and according to energy availability, the demand for energy storage is rising. Energy storage tackles these growing problems and is therefore inevitable for a sustainable energy supply. Carnot batteries are one out of a few geographically independent storage possibilities for longer durations. A Carnot battery works in the way that electricity is stored in heat during times of overproduction and reconverted back to electricity when needed. This work focuses on the charging model of natural and cast basalt for packed bed thermal energy storage used in Carnot batteries. A mathematical model, based on experimental data of the speed of reaching the full potential heat capacity, is presented. It describes in a novel way, based on the change of heat capacity during heating and cooling, the charging and discharging behaviour of the material, independent from a possible storage layout. The model is a 4th-grade polynomial, well fitted to the data with the method of least squares.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

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

2023

Číslo periodika v rámci svazku

64 (2023) 107026

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000957391000001

EID výsledku v databázi Scopus

2-s2.0-85150357279