| 一种新型压缩空气储能系统的理论分析 |
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| 作者姓名： | 王焕然 |
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| 作者单位： | 1.西安交通大学 能源与动力工程学院，西安 710049 |
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| 基金项目： | 国家863计划资助项目2012AA052501 |
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| 摘 要： | 根据中国西部干旱、缺水、高风沙和限制使用天然气的地区特点，提出了一种压缩空气储能的技术方案，并对其储能过程和发电过程进行了热力学分析，重点分析了压缩过程指数、最高储气压力和透平进气温度对系统能量转换效率的影响规律。研究结果表明:(1)系统电耗随多变指数的升高基本保持不变，能量效率都随多变指数的升高而增加，而热耗随多变指数的升高而大幅减小。(2)系统电耗和热耗都随压缩空气储能系统高压储气室内压力的变大而增加，而系统的能量效率随压缩空气储能系统高压储气室内压力变大而减小。(3)系统电耗和热耗都随高压气体透平进气温度的升高而下降，而系统的能量效率随高压气体透平进气温度的升高而升高。该研究对在中国开展和大规模推广应用压缩空气储能技术具有一定的参考价值。
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| 关 键 词： | 大规模 压缩空气 储能 热力学 |
| 收稿时间： | 2015-04-10 |
Theoretical Analysis of a Novel Compressed Air Energy Storage System |
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| Affiliation: | 1.College of Energy and Power Engineering, Xi′an Jiaotong University, Xi′an 710049, China |
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| Abstract: | According to the natural environment drought, water shortage, high sand and the restrict use of natural gas in Western China, this paper proposes a technical scheme of the compressed air energy storage. The thermodynamics process of energy storage and power generation have also been analyzed, while the compression process index, maximum gas pressure and turbine inlet temperature on the influence of system energy conversion efficiency have been paid much more attention. The research result shows that: 1, with the increasing of the polytropic index, the system electricity ratio nearly keeps constant, while the energy efficiency increases and the heat ratio greatly decreased. 2, the system electricity ratio and the heat ratio increase with the increasing of the pressure in high pressure vessel, the energy efficiency decreases with the increasing of the pressure in high pressure vessel. 3, the system electricity and the heat ratio decrease along with the rise of inlet temperature in high pressure gas turbine, and the energy efficiency increases with the increasing of inlet temperature in high pressure gas turbine. The study of this paper has a certain reference value in the large-scale promotion application in China. |
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