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Evaluating plant configurations for adiabatic compressed air energy storage by dynamic simulation

Presentation held at Biennial International Conference "Electrical Energy Storage Applications and Technologies", EESAT, 2009, Seattle/Wash., October 6., 2009
: Wolf, D.

Präsentation urn:nbn:de:0011-n-1144852 (663 KByte PDF)
MD5 Fingerprint: 456c132f673d911641257f0025ab7628
Erstellt am: 14.1.2010

Volltext urn:nbn:de:0011-n-114485-16 (160 KByte PDF)
MD5 Fingerprint: e20de88525fc23759e4375881a83daf0
Erstellt am: 14.1.2010

Abstract urn:nbn:de:0011-n-114485-24 (164 KByte PDF)
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Erstellt am: 14.1.2010

2009, 24 Folien
Biennial International Conference "Electrical Energy Storage Applications and Technologies" (EESAT) <2009, Seattle/Wash.>
Vortrag, Elektronische Publikation
Fraunhofer UMSICHT Oberhausen ()
compressed-air energy storage (CAES); thermal energy storage (TES); plant layout; dynamic model; high temperature; Druckluftspeicherung; Wärmespeicher; Anlagenplanung; dynamisches Modell; Hochtemperatur

Adiabatic Compressed Air Energy Storage (A-CAES) represents a zero emission electrical storage technology together with acceptably high cycle efficiency. Therefore the application of internal heat storage becomes necessary. One main characteristic of such A-CAES is that the heat generated during compression exceeds the amount of usable heat for the expansion process afterwards. In real life cycling mode this could lead to a heat storage overload. For heat storage management four possible solutions are proposed and discussed. To assess these solutions and to obtain a well suited overall plant configuration a dynamic model of the whole A-CAES process was developed with the focus on the stratified high-temperature heat storage. After an introduction to basic mechanisms relevant for the understanding of heat management in an A-CAES context, a brief explanation of the model structure is given and two heat management solutions are discussed more indetail.