Energy Efficiency Analysis of Discharge Modes of an Adiabatic Compressed Air Energy Storage System
Efficient energy storage is a crucial factor in facilitating the uptake of renewable energy resources. Among the many options available for energy storage systems required to balance imbalanced supply and demand cycles, compressed air energy storage (CAES) is a proven technology in grid-scale applications. This paper reviews the current state of micro scale CAES technology and describes a micro-scale advanced adiabatic CAES (A-CAES) system, where heat generated during compression is stored for use in the discharge phase. It will also describe a thermodynamic model, developed in EES (Engineering Equation Solver) to evaluate the performance and critical parameters of the discharge phase of the proposed system. Three configurations are explained including: single turbine without preheater, two turbines with preheaters, and three turbines with preheaters. It is shown that the micro-scale A-CAES is highly dependent upon key parameters including; regulator pressure, air pressure and volume, thermal energy storage temperature and flow rate and the number of turbines. It was found that a micro-scale AA-CAES, when optimized with an appropriate configuration, could deliver energy input to output efficiency of up to 70%.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1314642Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1021
 Rohit, A.K., K.P. Devi, and S. Rangnekar, An overview of energy storage and its importance in Indian renewable energy sector: Part I – Technologies and Comparison. Journal of Energy Storage, 2017. 13 (Supplement C): p. 10-23.
 Gasia, J., L. Miró, and L.F. Cabeza, Review on system and materials requirements for high temperature thermal energy storage. Part 1: General requirements. Renewable and Sustainable Energy Reviews, 2017. 75: p. 1320-1338.
 Hoque, M.M., et al., Battery charge equalization controller in electric vehicle applications: A review. Renewable and Sustainable Energy Reviews, 2017. 75: p. 1363-1385.
 Nkhonjera, L., et al., A review of thermal energy storage designs, heat storage materials and cooking performance of solar cookers with heat storage. Renewable and Sustainable Energy Reviews, 2017. 75: p. 157-167.
 Thieblemont, H., et al., Predictive control strategies based on weather forecast in buildings with energy storage system: A review of the state-of-the art. Energy and Buildings, 2017. 153: p. 485-500.
 Bitaraf, H. and S. Rahman, Reducing Curtailed Wind Energy through Energy Storage and Demand Response. IEEE Transactions on Sustainable Energy, 2017.
 Huang, Y., et al. Techno-economic Modelling of Large Scale Compressed Air Energy Storage Systems. in Energy Procedia. 2017.
 Kapila, S., A.O. Oni, and A. Kumar, The development of techno-economic models for large-scale energy storage systems. Energy, 2017. 140: p. 656-672.
 Shahinzadeh, H., et al. Simultaneous operation of near-to-sea and off-shore wind farms with ocean renewable energy storage. in 4th Iranian Conference on Renewable Energy and Distributed Generation, ICREDG 2016. 2017.
 Maia, T.A.C., et al., Experimental performance of a low cost micro-CAES generation system. Applied Energy, 2016. 182: p. 358-364.
 Li, R., et al., Optimal dispatch of zero-carbon-emission micro Energy Internet integrated with non-supplementary fired compressed air energy storage system. Journal of Modern Power Systems and Clean Energy, 2016. 4(4): p. 566-580.
 Zhang, L., Q. Luo, and Q. An, Control strategy of electromechanical system of hydro-pneumatic compressed air storage system. Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, 2016. 31(14): p. 67-74.
 De Lieto Vollaro, R., et al. Energy and thermodynamical study of a small innovative compressed air energy storage system (micro-CAES). in Energy Procedia. 2015.
 Facci, A.L., et al., Trigenerative micro compressed air energy storage: Concept and thermodynamic assessment. Applied Energy, 2015. 158: p. 243-254.
 Tallini, A., A. Vallati, and L. Cedola, Applications of Micro-CAES Systems: Energy and Economic Analysis. Energy Procedia, 2015. 82 (Supplement C): p. 797-804.
 Xinghua, Y., et al., Simulation and experimental research on energy conversion efficiency of scroll expander for micro-Compressed Air Energy Storage system. International Journal of Energy Research, 2014. 38(7): p. 884-895.
 Karellas, S. and N. Tzouganatos, Comparison of the performance of compressed-air and hydrogen energy storage systems: Karpathos island case study. Renewable and Sustainable Energy Reviews, 2014. 29: p. 865-882.
 Kim, Y.M. and D. Favrat, Energy and exergy analysis of a micro-compressed air energy storage and air cycle heating and cooling system. Energy, 2009. 35(1): p. 213-220.
 Klein, S.A., Engineering Equation Solver (EES), 2011.
 Shah, R.K. and D.P. Sekulic, Fundamentals of Heat Exchanger Design, 2003.
 Klein, S.A. and G. Nellis, Thermodynamics. 2012: Cambridge University Press.