Research on Storage Capacity of Compressed Air Pumped Hydro Energy Storage Equipment

Jingtian Bi, Tong Jiang, Weili Chen, Xian Ma

State Key Laboratory of Alternate Electrical Power, System with Renewable Energy Sources, North China Electric Power University, Beijing, China.

DOI: 10.4236/epe.2013.54B005                

Abstract

Compressed air pumped hydro energy storage equipment combines compressed air energy storage technology and pumped storage technology. The water is pumped to a vessel to compress air for energy storage, and the compressed air expanses pushing water to drive the hydro turbine for power generation. The novel storage equipment saves natural gas resources, reduces carbon emission, and improves the controllability and reliability. The principle of compressed air pumped hydro energy storage is introduced and its mathematical model is built. The storage and generation process of the novel equipment is analyzed using the model. The calculation formula of the storage power is deduced in theory in different situations of isothermal and adiabatic compression. The optimal storage scheme is given when the capacity and withstand pressure of the vessel is definitive, and the max available capacity and the equipment utilization efficiency evaluation of the scheme is given.

Keywords

Power Storage; Compressed Air Energy Storage; Hydraulic Equipment; Optimal Operation; Isothermal Process; Adiabatic Process; Equipment Utilization Efficiency

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	L. Y. Hu, “Air Storage Generation Technology,” Shanghai Electric Power, Vol. 2, 2006, pp. 158-160.
[2]	L. Ye, “Study on Sustainable Development Strategy of Electric Power in China in 2020,” Electric Power, Vol. 36, No. 10, 2003, pp. 1-7.
[3]	W. D. Song, “Survey of Compressed Air Storage Power Generation Abroad,” Electric Power, Vol. 30, No. 9, 1997, pp. 53-54.
[4]	Y. X. Zhou and S. D. Deng, “New Method of Small Scale Wind Power Based On Compressed Air Energy Storage,” Solar Energy, Vol. 4, 2008, pp. 60-61.
[5]	X. Zhai, X. L. Yu and Z. M. Liu, “Research on Hybrid of Compressed-air and Fuel,” Journal of Zhejiang University(Engineering Science), Vol. 40, No. 4, 2006, pp. 610-614.
[6]	H. S. Chen, “Characteristic and Development Trend of Compressed Air Energy Storage System,” High-Technology & Industrialization, Vol. 17, No. 6, 2011, pp. 55-56.
[7]	W. Y. Liu, Y. P. Yang and Z. P. Song, “Optimization and Performance Simulation of Different CAES Systems,” Journal of Engineering Thermophysics, Vol. 26, No. 1, 2005, pp. 25-28.
[8]	J. Liu, H. D. Xia, H. S. Chen, et al., “A Novel Energy Storage Technology Based on Liquid Air and ITS Applicaion in Wind Power,” Journal of Engineering Thermophysics, Vol. 31, No. 12, 2010, pp. 1993-1996.
[9]	Y. S. H. Najjar and M. S. Zaamout, “Performance Analysis of Compressed Air Energy Storage (CAES) Plant for Dry Regions,” Energy Conversion and Management, Vol. 39, No. 15, 1998, pp. 1503-1511. doi:10.1016/S0196-8904(98)00034-X
[10]	I. Glendenning, “Long-term Prospects for compressed air storage,” Applied Energy, Vol. 2, No. 1, 1976, pp. 39-56. doi:10.1016/0306-2619(76)90038-6
[11]	H. R. Wang, “Water-gas Ecompassing Electric Power,” Energy Storage System: CN 102434362 A [P/OL]. 2012-05-02[2013-01-23].
[12]	EBO Group, Inc., Compressed Air Pumped Hydro Energy Storage and Distribution System: US 7,281,371 B1 [P/OL]. 2007-10-16[201-01-23].