摘要
通过深冷液化空气储能系统(liquid air energy storage,LAES)的工艺流程研究与热力学建模,立足于系统效率层面对LAES空气压缩子系统、空气液化子系统及膨胀发电子系统关键参数进行分析。分析结果定性给出了节流阀进出口温度与压力、低温泵效率、膨胀发电子系统释能压力与温度等因素与系统效率的耦合关系,并在此基础上通过仿真对其耦合关系进行了验证,为系统关键参数设计给出了建议,提升了系统效率,验证了LAES系统可行性。
The key parameters for the air compression sub⁃system of liquid air energy storage system(LAES),air liquefaction sub⁃system and expansion power generation subsystem are analyzed throughout the process flow study of the LAES and the modeling of thermodynamics and based on the system efficiency layer.The analysis results give qualitatively the coupling relationship between temperature and pressure of inlet and outlet,low pressure pump efficiency,expansion power generation subsystem release pressure and temperature and system efficiency.Based on this,the relationship is verified by simulation and suggestions for the design of system key parameters are given.The system efficiency is improved and the feasibility of the LAES system is verified.
作者
杨德州
贾春荣
迟昆
李媛
YANG Dezhou;JIA Chunrong;CHI Kun;LI Yuan(Economic Research Technology Institute of State Grid Gansu Electric Power Company,Lanzhou 730050,China)
出处
《电力电容器与无功补偿》
北大核心
2020年第6期185-190,共6页
Power Capacitor & Reactive Power Compensation
基金
国网总部科技项目(52272810005)。
