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Dynamic simulation of possible heat management solutions for adiabatic compressed air energy storage

Presentation held at the Effstock 2009, International Conference on Thermal Energy Storage
 
: Wolf, D.

:
Fulltext urn:nbn:de:0011-n-1039740 (492 KByte PDF)
MD5 Fingerprint: 4ae14c0b1c7ab333de50be2776a14947
Created on: 14.10.2009


2009, 16 pp.
International Conference on Thermal Energy Storage <11, 2009, Stockholm>
English
Presentation, Electronic Publication
Fraunhofer UMSICHT Oberhausen ()
compressed-air energy storage (CAES); electrical energy storage; heat storage; heat management; high temperature; dynamic simulation; Druckluftspeicherung; Stromspeicher; Wärmespeicherung; Wärmemanagement; Hochtemperatur; dynamische Simulation

Abstract
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 quantitatively. A dynamic model of the whole A-CAES process is under development 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 model structure is given.

: http://publica.fraunhofer.de/documents/N-103974.html