Lab-Scale Reactor Tests on Fe-Doped CaMnO3 for Thermochemical Heat Storage Application

Emanuela Mastronardo, Mario Sánchez, José González-Aguilar, Sossina M. Haile, Juan M. Coronado

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to improve the dispatchability of next-generation concentrated solar power (CSP) plants, Ca(Fe0.1M0.9)O3 has been proposed as high temperature (>800 °C) thermochemical energy storage (TES) materials. Only recently, the thermodynamics of Ca(Fe0.1M0.9)O3 oxide has been measured through Van't Hoff approach via thermogravimetric (TG) analysis, thus allowing access to the oxygen non-stoichiometry profiles (δ(T, pO2)) under different temperature and oxygen partial pressure pO2. The material TES performance is here investigated through laboratory scale reactor tests carried out under conditions considered representative of future CSP plants. Remarkably, the material exhibits the same δ(T, pO2) profile as the one computed from the thermodynamics at a significantly larger scale (~40g). According to the obtained results, Ca(Fe0.1M0.9)O3 oxide appears ideally suited for thermal energy storage applications with a large total (thermochemical and sensible) heat storage capacity (~916 kJ/kgABO3) and good scalability.

Original languageEnglish (US)
Title of host publicationProceedings - ISES Solar World Congress 2021
PublisherInternational Solar Energy Society
Pages875-880
Number of pages6
ISBN (Electronic)9783982040875
DOIs
StatePublished - 2021
EventISES Solar World Congress 2021 - Virtual, Online
Duration: Oct 25 2021Oct 29 2021

Publication series

NameProceedings - ISES Solar World Congress 2021

Conference

ConferenceISES Solar World Congress 2021
CityVirtual, Online
Period10/25/2110/29/21

Funding

This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement N° 74616. Support of the ACES2030 from "Comunidad de Madrid" and European Structural Funds to (P2018/EMT-4319), and of the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Award DE-EE0008089.0000 are also fully acknowledged. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement N° 74616. Support of the ACES2030 from “Comunidad de Madrid” and European Structural Funds to (P2018/EMT-4319), and of the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Award DE-EE0008089.0000 are also fully acknowledged.

Keywords

  • calcium manganite
  • iron doping
  • perovskite
  • reactor tests
  • thermal energy storage

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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