| 储能过程设计参数对压缩空气储能系统性能影响研究 |
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| 引用本文： | 中国科学院工程热物理研究所,北京.储能过程设计参数对压缩空气储能系统性能影响研究[J].热能动力工程,2017,32(3):40-46. |
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| 作者姓名： | 中国科学院工程热物理研究所 北京 |
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| 作者单位： | 本文针对蓄热式压缩空气储能系统建立数学模型，利用 MATLAB 调用 REFPROP 软件获取不同状态下空气物性参数，进行总体计算程序开发，在储能系统输出功率为 100 MW、膨胀机进口前压力及膨胀级数被固定的前提下，分析了压缩机不同总压比和级数对系统性能的影响。结果表明：对于固定压缩机级数，随着总压比的增加，储能系统效率降低，系统热能利用率降低，节流损失增加，系统热力学性能下降，而储释能工质质量流量降低，储气密度增加，体积减小；对于固定压缩机总压比，随着级数增加，储能系统效率降低，系统热能利用率降低，节流损失基本保持不变。 |
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| 基金项目： | 国家自然科学基金资助项目（51206159）；内蒙古自治区自然科学基金资助项目(2014MS0504) |
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| 摘 要： | 本文针对蓄热式压缩空气储能系统建立数学模型,利用MATLAB调用REFPROP软件获取不同状态下空气物性参数,进行总体计算程序开发,在储能系统输出功率为100 MW、膨胀机进口前压力及膨胀级数被固定的前提下,分析了压缩机不同总压比和级数对系统性能的影响。结果表明:对于固定压缩机级数,随着总压比的增加,储能系统效率降低,系统热能利用率降低,节流损失增加,系统热力学性能下降,而储释能工质质量流量降低,储气密度增加,体积减小;对于固定压缩机总压比,随着级数增加,储能系统效率降低,系统热能利用率降低,节流损失基本保持不变。
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| 关 键 词： | CAES 总压比 系统效率 热能利用率 节流损失 |
Effect of Design Parameters on the Performance of Regenerative Compressed Air Energy Storage System |
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| Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing,Chin,Post Code:.Effect of Design Parameters on the Performance of Regenerative Compressed Air Energy Storage System[J].Journal of Engineering for Thermal Energy and Power,2017,32(3):40-46. |
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| Authors: | Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing Chin Post Code: |
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| Affiliation: | In this paper,the mathematical model of regenerative compressed air energy storage system was established and the system performance calculation program was developed by using the software of MATLAB and REFPROP. With constant rated output power of 100 MW,expander inlet pressure and stages,the impact of different total pressure ratios and stages of compressor on system performance was also analyzed. The results showed that with constant compressor stage,the increase in the total pressure ratio leads to the decrease in the efficiency and heat energy utilization of energy storage system,and the throttling loss increases. Thus the thermodynamic performance of the system becomes worse. But the decrease in mass flow can reduce the gas volume in storing. With constant total pressure ratio of the compressor,the increase in compressor stage results in the reduction in the efficiency and heat energy utilization of energy storage system,but the throttling loss essentially remains unchanged. |
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| Abstract: | |
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| Keywords: | CAES total pressure system efficiency heat energy utilization throttling loss |
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