Abstract
Using compressed air to store energy is one of the energy storage methods. In this study, a small scale compressed air energy storage (CAES) system is designed and modeled. The energy storage capacity of designed CAES system is about 2 kW. The system contains a hydraulic pump unit, expansion–compression liquid pistons, valves, a tank, and a control unit. The aim of the designed system is basically to store air under a defined pressure. The designed CAES system is modeled and simulated by MATLAB/Simulink program. Pressure changes in the tank and pistons are obtained. Besides, energy storage capacity of the system for different pressures is investigated in isothermal conditions.
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Acknowledgments
This project is supported by Scientific and Technological Research Council of Turkey, under project number: 111M015. Authors thank the Scientific and Technological Research Council of Turkey.
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Nomenclature
Nomenclature
- R:
-
Universal gas constant (J/kgK)
- T:
-
Air temperature (K)
- Patm :
-
Atmospheric pressure (N/m2)
- Ptank :
-
Tank pressure (N/m2)
- Vtank :
-
Tank volume (m3)
- Q:
-
Flow rate (m3/s)
- Dp :
-
Pump displacement (m3/rev)
- npump :
-
Pump speed (rev/min)
- V:
-
Liquid piston volume (m3)
- Vdead :
-
Dead volume (m3)
- D:
-
The diameter of liquid piston (m)
- L:
-
The length of liquid piston (m)
- Ldead :
-
The dead length of liquid piston (m)
- A:
-
Area of liquid piston (=\( \frac{{\uppi \mathrm{D}}^2}{4} \))
- ηv :
-
Volumetric efficiency
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Kiliç, M., Kocabiçak, Z.K., Topçu, E.E., Mutlu, M. (2014). Mathematical Modeling of a Small Scale Compressed Air Energy Storage System. In: Dincer, I., Midilli, A., Kucuk, H. (eds) Progress in Exergy, Energy, and the Environment. Springer, Cham. https://doi.org/10.1007/978-3-319-04681-5_43
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DOI: https://doi.org/10.1007/978-3-319-04681-5_43
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Online ISBN: 978-3-319-04681-5
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