Storage of Heat, Cold and Electricity

Autor: Anastasia Stamatiou, Andreas Ammann, Andreas Abdon, Ludger J. Fischer, Damian Gwerder, Jörg Worlitschek
Jazyk: German<br />English<br />French
Rok vydání: 2015
Předmět:
Zdroj: CHIMIA, Vol 69, Iss 12 (2015)
Druh dokumentu: article
ISSN: 0009-4293
2673-2424
DOI: 10.2533/chimia.2015.777
Popis: A promising energy storage system is presented based on the combination of a heat pump, a heat engine, a hot and a cold storage. It can be operated as a pure bulk electricity storage (alternative to Pumped Heat Electrical Storage (PHES)/Compressed Air Energy Storage (CAES)) or as combined storage of heat, cold and electricity. Both variations have been evaluated using a steady state, thermodynamic model and two promising concepts are proposed: A transcritical CO2 cycle for the pure electricity storage and a subcritical NH3 cycle for combined storage of electricity, heat and cold. Parametric studies are used to evaluate the influence of different parameters on the roundtrip efficiency of the storage system.
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