3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir
The advanced adiabatic compressed air energy storage (AA-CAES) system is a viable alternative for long term energy storage. The exergy loss during throttling is a major obstacle to performance improvement in AA-CAES system. This paper introduces a new gravity-assisted isobaric AA-CAES system. The ai...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25004654 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850228097855520768 |
|---|---|
| author | Ruifeng Cao Zhe Wang Hongliang Fan Ziqi Chen |
| author_facet | Ruifeng Cao Zhe Wang Hongliang Fan Ziqi Chen |
| author_sort | Ruifeng Cao |
| collection | DOAJ |
| description | The advanced adiabatic compressed air energy storage (AA-CAES) system is a viable alternative for long term energy storage. The exergy loss during throttling is a major obstacle to performance improvement in AA-CAES system. This paper introduces a new gravity-assisted isobaric AA-CAES system. The air storage reservoir in proposed system consists of three parts: an abandoned vertical mineshaft, a heavy load, and an elastic airbag. By balancing the supporting force generated by the high-pressure air with the gravity of the heavy load, isobaric air charging and discharging process is achieved. Thermodynamic and economic models are developed. The results show that under the optimized design condition, the air and occupied space energy storage density are 2.68 kWh/m3 and 2.29 kWh/m3, respectively. The energy efficiency and exergy efficiency are 87.10 % and 70.07 %, respectively. The exergy destruction is mainly due to irreversible exergy losses in the heat exchangers. The dynamic payback period and levelized cost of energy are 8.36 years and 0.0804 $/kWh, respectively. |
| format | Article |
| id | doaj-art-c68827599b5a40b2acaffe53362fbf6e |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-c68827599b5a40b2acaffe53362fbf6e2025-08-20T02:04:37ZengElsevierCase Studies in Thermal Engineering2214-157X2025-07-017110620510.1016/j.csite.2025.1062053E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoirRuifeng Cao0Zhe Wang1Hongliang Fan2Ziqi Chen3Corresponding author.; School of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, ChinaThe advanced adiabatic compressed air energy storage (AA-CAES) system is a viable alternative for long term energy storage. The exergy loss during throttling is a major obstacle to performance improvement in AA-CAES system. This paper introduces a new gravity-assisted isobaric AA-CAES system. The air storage reservoir in proposed system consists of three parts: an abandoned vertical mineshaft, a heavy load, and an elastic airbag. By balancing the supporting force generated by the high-pressure air with the gravity of the heavy load, isobaric air charging and discharging process is achieved. Thermodynamic and economic models are developed. The results show that under the optimized design condition, the air and occupied space energy storage density are 2.68 kWh/m3 and 2.29 kWh/m3, respectively. The energy efficiency and exergy efficiency are 87.10 % and 70.07 %, respectively. The exergy destruction is mainly due to irreversible exergy losses in the heat exchangers. The dynamic payback period and levelized cost of energy are 8.36 years and 0.0804 $/kWh, respectively.http://www.sciencedirect.com/science/article/pii/S2214157X25004654Isobaric adiabatic compressed air energy storageGravity energy storageThermodynamic analysisEconomic analysisAirbag |
| spellingShingle | Ruifeng Cao Zhe Wang Hongliang Fan Ziqi Chen 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir Case Studies in Thermal Engineering Isobaric adiabatic compressed air energy storage Gravity energy storage Thermodynamic analysis Economic analysis Airbag |
| title | 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir |
| title_full | 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir |
| title_fullStr | 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir |
| title_full_unstemmed | 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir |
| title_short | 3E analysis and multi-objective optimization of a novel isobaric compressed air energy storage system with a gravity-enhanced air storage reservoir |
| title_sort | 3e analysis and multi objective optimization of a novel isobaric compressed air energy storage system with a gravity enhanced air storage reservoir |
| topic | Isobaric adiabatic compressed air energy storage Gravity energy storage Thermodynamic analysis Economic analysis Airbag |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25004654 |
| work_keys_str_mv | AT ruifengcao 3eanalysisandmultiobjectiveoptimizationofanovelisobariccompressedairenergystoragesystemwithagravityenhancedairstoragereservoir AT zhewang 3eanalysisandmultiobjectiveoptimizationofanovelisobariccompressedairenergystoragesystemwithagravityenhancedairstoragereservoir AT hongliangfan 3eanalysisandmultiobjectiveoptimizationofanovelisobariccompressedairenergystoragesystemwithagravityenhancedairstoragereservoir AT ziqichen 3eanalysisandmultiobjectiveoptimizationofanovelisobariccompressedairenergystoragesystemwithagravityenhancedairstoragereservoir |