Maximizing Efficiency in Compressed Air Energy Storage: Insights from Thermal Energy Integration and Optimization

被引：2

作者：

Cacciali, Luca ^{[1
]}

Battisti, Lorenzo ^{[1
]}

Benini, Enrico ^{[1
]}

机构：

[1] Univ Trento, Dept Civil Environm & Mech Engn, Fluid Machinery Lab, Via Mesiano 77, I-38123 Trento, Italy

来源：

ENERGIES | 2024年 / 17卷 / 07期

关键词：

compressed air energy storage; thermal energy storage; diabatic CAES; adiabatic CAES; D-CAES; A-CAES; TES; WIND ENERGY; PERFORMANCE; SIMULATION; SYSTEM;

D O I：

10.3390/en17071552

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：

Motivated by the suboptimal performances observed in existing compressed air energy storage (CAES) systems, this work focuses on the efficiency optimization of CAES through thermal energy storage (TES) integration. The research explores the dependence of CAES performance on power plant layout, charging time, discharging time, available power, and cavern volume. Hence, a range of solutions are examined, encompassing both solid and liquid TES options, alongside the potential utilization of external air heaters. Inefficiencies in solid TES due to significant retention of thermal power within the medium after complete discharge are identified and mitigated through optimization strategies. In addition, solutions to prevent ice formation at the low-pressure expander phase are suggested to avoid icing issues in CAES layouts with liquid TES. Through this comprehensive investigation, the study provides valuable insights into enhancing the efficiency and sustainability of CAES systems. By constructing a volume-power-time conversion table, the research contributes to the advancement of CAES technology, facilitating more efficient energy storage and utilization, thereby addressing critical challenges in the field of energy storage.

引用

页数：16

共 30 条

[1] Performance analysis of a two-stage thermal energy storage system using concrete and steam accumulator [J].