Performance Evaluation of Static and Dynamic Compressed Air Reservoirs for Energy Storage

Alfred Rufer ()
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Alfred Rufer: EPFL, Ecole Polytechnique Fédérale de Lausanne, Dept. STI-DO, Station 11, CH 1015 Lausanne, Switzerland

Energies, 2025, vol. 18, issue 14, 1-17

Abstract: The concept of static and dynamic reservoirs is presented, and their performances are evaluated. The static reservoir is a simple reservoir with constant volume, and the dynamic one has a volume which varies as a function of the position of an internal piston coupled to a spring. The spring is compressed when the pressure in the chamber rises and exerts a proportional force on it. The two reservoirs are components to be used in compressed air energy storage systems. The study comprises a model of the compression machine as well as models of the two reservoirs. The filling processes are simulated, and the different variables are represented as a function of time. A reduced scale experimentation set-up is presented, and its behavior is first simulated. Then. the results are compared to the experimental records.

Keywords: compressed air; energy storage; static reservoir; dynamic reservoir; modeling of a compressor; energy of a loaded spring (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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