Performance optimization of adiabatic compressed air energy storage with ejector technology

被引：44

作者：

Guo, Zuogang ^{[1
,2
]}

Deng, Guangyi ^{[1
]}

Fan, Yongchun ^{[1
]}

Chen, Guangming ^{[2
]}

机构：

[1] Guangdong Elect Power Design Inst Co Ltd, China Energy Engn Grp, Guangzhou 510663, Guangdong, Peoples R China

[2] Zhejiang Univ, Inst Refrigerat & Cryogen, Hangzhou 310027, Zhejiang, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2016年 / 94卷

基金：

中国博士后科学基金;

关键词：

Compressed air energy storage; Thermal energy storage; Ejector; Pressure reducing loss;

D O I：

10.1016/j.applthermaleng.2015.10.047

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, the performances of two adiabatic compressed air energy storage systems were determined. In system 1#, compressed air was reduced directly from 6.40 MPa to 2.50 MPa. In system 2#, compressed air was first reduced to 5.00 MPa and was later adjusted to 2.50 MPa by an ejector under an ejecting coefficient of 0.45. The mass flow of turbine 1# increased by 45%, and its power output capacity increased from 3.80 MW to 5.51 MW. The energy conversion efficiency of system 2# increased to 65.36% from 61.95% for system 1#. The application of the ejector improved the efficiency by 3.41%. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：193 / 197

页数：5

共 20 条

[1] Managing wind variability with pumped hydro storage and gas turbines [J].