Thermodynamic analytical solution and exergy analysis for supercritical compressed air energy storage system

被引：67

作者：

Guo, Huan ^{[1
]}

Xu, Yujie ^{[1
]}

Chen, Haisheng ^{[1
]}

Guo, Cong ^{[1
]}

Qin, Wei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China

来源：

APPLIED ENERGY | 2017年 / 199卷

基金：

中国国家自然科学基金;

关键词：

Supercritical Compressed Air Energy Storage (SC-CAES); Analytical solution; Sensitivity analysis; Exergy analysis; EFFICIENCY ANALYSIS; THERMAL STORAGE; ADIABATIC CAES; POWER; PLANT; OPTIMIZATION; INTEGRATION; SIMULATION;

D O I：

10.1016/j.apenergy.2017.04.068

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

An analytical solution for a novel Compressed Air Energy Storage (CAES) system, Supercritical Compressed Air Energy Storage (SC-CAES) system, was conducted in this paper. The analytical solution can explore the evolution and its reason of roundtrip efficiency varying with system key parameters in depth, while it can also reveal the coupling mechanism of different sections of the system. On that basis, the model of exergy destruction for each part was obtained, and the exergy destruction can be easily calculated. Furthermore, the analytical solution has the character of universality due to the deduced method of sectional treatment, hence it can be extended to other similar CAES systems. Lastly, a sensitivity analysis and an exergy analysis were conducted for SC-CAES system. It is found and proved that the system efficiency varies linearly with isentropic efficiencies of compressor and expander, temperature difference of intercooler and reheater, pressure loss of intercooler and reheater. Meanwhile, the main factors of the varying tendency of total exergy destruction with different parameters are revealed. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：96 / 106

页数：11

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