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Doped calcium manganites for advanced high‐temperature thermochemical energy storage
Author(s) -
Babiniec Sean M.,
Coker Eric N.,
Miller James E.,
Ambrosini Andrea
Publication year - 2016
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3467
Subject(s) - thermogravimetric analysis , energy storage , thermal energy storage , enthalpy , renewable energy , materials science , perovskite (structure) , thermodynamics , chemical engineering , process engineering , electrical engineering , engineering , power (physics) , physics
Summary Developing efficient thermal storage for concentrating solar power plants is essential to reducing the cost of generated electricity, extending or shifting the hours of operation, and facilitating renewable penetration into the grid. Perovskite materials of the CaB x Mn 1‐x O 3‐δ family, where B = Al or Ti, promise improvements in cost and energy storage density over other perovskites currently under investigation. Thermogravimetric analysis of the thermal reduction and reoxidation of these materials was used to extract equilibrium thermodynamic parameters. The results demonstrate that these novel thermochemical energy storage media display the highest reaction enthalpy capacity for perovskites reported to date, with a reaction enthalpy of 390 kJ/kg, a 56% increase over previously reported compositions.Copyright © 2015 John Wiley & Sons, Ltd.