储能技术被视为克服可再生能源波动性对电网稳定运行影响的路径之一,CO2储能(Carbon Dioxide Energy Storage,CES)作为新型储能技术之一,具有较高的能量密度且地理位置依赖度较低,比较有发展潜力.透平膨胀机作为CES系统的核心部件,直接影响系统的性能.本文介绍了 CES的基本原理,总结了 CO2透平膨胀机的主要类型及特征,归纳了关于膨胀机设计方法和数值分析的研究,论述了部分进气和密封方式对透平膨胀机性能的影响规律,并分析了已有的CO2实验研究系统,归纳了其透平膨胀机的设计参数,从而为CES系统及其透平膨胀机的设计开发提供参考.
Advances in Turbine Expander Research for Carbon Dioxide Energy Storage Systems
For overcoming the impact of renewable energy fluctuations on grid stability,energy storage technology is considered as one of the solution paths.Carbon dioxide energy storage(CES),as one of the new energy storage technologies,has the advantages of higher energy density and lower geographic de-pendence,which becomes a promising energy storage technology.The turbine expander,as the core component of the CES system,has a direct impact on the performance of the system.The basic principle of CES technology is introduced first in this paper.Then the different types of CO2 turbine expanders and their main features are further summarized.The study on the design methodology and numerical analysis of expander are summarized.The influences of partial intake and sealing method on the performance of turbine expander are discussed.Finally,the existing CO2 experimental systems are analyzed and the de-sign parameters of its turbine expander are summarized,which provides a reference for the design and de-velopment of CES systems and their turbine expanders.
carbon dioxide energy storageCO2 turbine expanderdesign methodpartial admissionsealing mehod
万方数据
维普
