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M. Hämmerle, M. Haider, R. Willinger, K. Schwaiger, R. Eisl, K. Schenzel:
"Saline Cavern Adiabatic Compressed Air Energy Storage Using Sand as Heat Storage Material";
Journal of Sustainable Development of Energy, Water and Environment Systems, 5 (2017), 1; 32 - 45.

Adiabatic compressed air energy storage systems offer large energy storage capacities
and power outputs beyond 100 MWel. Salt production in Austria produces large caverns
which are able to hold pressure up to 100 bar, thus providing low cost pressurized air
storage reservoirs for adiabatic compressed air energy storage plants. In this paper the
results of a feasibility study is presented, which was financed by the Austrian Research
Promotion Agency, with the objective to determine the adiabatic compressed air energy
storage potential of Austria´s salt caverns. The study contains designs of realisable plants
with capacities between 10 and 50 MWel, applying a high temperature energy storage
system currently developed at the Institute for Energy Systems and Thermodynamics in
Vienna. It could be shown that the overall storage potential of Austria´s salt caverns
exceeds a total of 4 GWhel in the year 2030 and, assuming an adequate performance of
the heat exchanger, that a 10 MWel adiabatic compressed air energy storage plant in
Upper Austria is currently feasible using state of the art thermal turbomachinery which is
able to provide a compressor discharge temperature of 400 °C.

Energy storage, Compressed air, Cavern, Heat, Sand, Adiabatic compressed air energy storage

http://dx.doi.org/10.13044/j.sdewes.d5.0131