典型压缩空气蓄能(CAES)电站热力学分析与系统优化  

Thermodynamic Analysis and Optimization of a Typical Compressed Air Energy Storage(CAES) Power Plant

作　　者：张伟德[1] 徐钢[1] 刘文毅[1] 杨勇平[1] 黄健[1] 刘林植[1] 

机构地区：[1]电站设备状态监测与控制教育部重点实验室(华北电力大学),北京102206

出　　处：《现代电力》2013年第2期41-47,共7页Modern Electric Power

基　　金：国家自然科学基金项目(51276059);国际科技合作项目(2010DFA72760-609)

摘　　要：压缩空气蓄能(CAES)作为大规模储能技术之一,是一种行之有效的调峰方式,同时也为风能等可再生能源的高效利用以及智能电网的建设提供了新的解决方案。通过探寻CAES系统内部的热力学机理,可以评估系统的性能,并提供系统优化的思路。文中利用Aspen Plus软件对世界第一座CAES电站-Huntorf电站做了流程模拟,并对电站的热力学性能做了详细分析,指出其在燃烧室和排气存在较大比例的火用损失。针对这一问题,在原系统的基础上提出了增加回热的优化系统;并通过火用分析对比,说明了优化系统的性能改善之处;最后研究了两个系统的性能随燃烧室出口温度的变化规律,为系统的进一步优化提供了参考依据。As one of the large- scale energy storage technol- ogies, Compressed Air Energy Storage （CAES） not only is an effective way of power peaking, but also provides effi- cient use of wind and other renewable energy and new solu- tion for smart grid construction. System performance can be evaluated through exploring the thermodynamic mechanism within the CAES system, which can provide new ideas for system optimization at the same time. For the world＇s first CAES power plant - Huntorf plant, this paper conducted a process simulation using Aspen Plus software, performed an in-detail thermodynamic performance analysis, and then pointed out that the exergy loss of the combustion chamber and exhaust accounted for a large proportion of the total ex- ergy loss. In response to this problem, an optimized system was proposed by adding a regeneration process to the origi- nal system; and the performance improvement of the opti- mized system was revealed by the comparison of exergy anal- ysis. Finally, as the exit temperature of combustor changes, the performance regularities of two systems were studied, which provide references for the further optimization of CAES system.

关 键 词：压缩空气蓄能 Huntorf电站 流程模拟 热力学分析 系统优化 火用分析 

分 类 号：TK02[动力工程及工程热物理]