Adiabatic Compressed Air Energy Storage (ACAES) system performance with an application oriented designed axial-flow compressor
Adiabatic Compressed Air Energy Storage (ACAES) system performance with an application oriented designed axial-flow compressor
复制标题
采用面向应用设计的轴流式压缩机的绝热压缩空气储能 (ACAES) 系统性能
DOI：
10.1049/icp.2023.1575
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Pottie D
中科院分区：
文献类型：
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作者：
Pottie D
ACAES作为一种无排放、中长期、高功率和高容量的集中式存储解决方案，有可能在净零能源市场发挥关键作用。ACAES独立于外部热源，因此，在膨胀之前，必须依靠在充电过程中提取的压缩热来重新加热空气。压缩机出口和涡轮进口温度之间的依赖关系导致充气和排气过程之间的强耦合，要求压缩机在更高的平均温度下运行。本文将介绍一种基于无粘绝热气流通流流线曲率法的轴流压气机的设计和性能预测过程。所设计的压缩机将用于300,000立方米的等容ACAES系统模型。结果表明，所设计的轴流压气机在充气过程中能够达到并保持优良的性能水平，当储存压力在5.5~7.7兆帕之间循环时，等熵效率接近90%，系统往返效率达到70%。接下来必须对压缩机的运行进行进一步的研究，但目前的设计方法为轴流压缩机被用作高效压缩系统铺平了道路，非常适合ACAES的应用。
ACAES has the potential to perform a key role in the net-zero energy market as an emission-free, medium to long duration, high power and capacity centralised storage solution. ACAES is independent of external heat sources and thus, must rely on the compression heat extracted during charging to re-heat the air prior to expansion. The dependence between compressor outlet and turbine inlet temperatures results in a strong coupling between the charging and discharging processes, requiring the compressors to operate at higher average temperatures. This paper will present the design and performance prediction processes of an application-oriented axial-flow compressor based on the throughflow streamline curvature method for inviscid adiabatic airflow. The designed compressor will then be used in a 300,000 m3isochoric ACAES system model. The results indicate the designed axial-flow compressor can reach and maintain excellent performance levels throughout the charging process, operating with isentropic efficiency close to 90% as the storage pressure cycles between 5.5 and 7.7 MPa, contributing to a system round trip efficiency of 70%. Further investigation on the compressor operation must follow, but the presented design methodology paves the way to axial-flow compressors being used as highly efficient compression systems, well suited for ACAES applications.