Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China
In response to the Paris climate agreement, the Chinese government has taken actions to improve the energy structure by reducing the share of coal-fired thermal power and increasing the use of clean energy. However, due to the extreme shortage of large-scale energy storage facilities, the utilizatio...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Frontiers Media S.A.
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/19a572d58ed24a1a985739bb7b42c79b |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:19a572d58ed24a1a985739bb7b42c79b |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:19a572d58ed24a1a985739bb7b42c79b2021-11-12T12:37:48ZUnderground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China2296-646310.3389/feart.2021.760464https://doaj.org/article/19a572d58ed24a1a985739bb7b42c79b2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.760464/fullhttps://doaj.org/toc/2296-6463In response to the Paris climate agreement, the Chinese government has taken actions to improve the energy structure by reducing the share of coal-fired thermal power and increasing the use of clean energy. However, due to the extreme shortage of large-scale energy storage facilities, the utilization efficiency of wind and solar power remains low. This paper proposes to use abandoned coal mine goafs serving as large-scale pumped hydro storage (PHS) reservoir. In this paper, suitability of coal mine goafs as PHS underground reservoirs was analyzed with respects to the storage capacity, usable capacity, and ventilation between goaf and outside. The storage capacity is 1.97 × 106 m3 for a typical mining area with an extent of 3 × 5 km2 and a coal seam thickness of 6 m. A typical goaf-PHS system with the energy type αw=0.74 has a performance of 82.8% in the case of annual operation, able to regulate solar-wind energy with an average value of 275 kW. The performance of the proposed goaf-PHS system was analyzed based on the reservoir estimation and meteorological information from a typical region in China. It has been found that using abandoned coal mine goafs to develop PHS plants is technically feasible in wind and solar-rich northwestern and southwestern China.Deyi JiangDeyi JiangShao ChenShao ChenShao ChenWenhao LiuWenhao LiuYiwei RenYiwei RenPengyv GuoPengyv GuoZongze LiZongze LiFrontiers Media S.A.articlepumped hydro storageclean energycoal minesfeasibility analysiscase studyScienceQENFrontiers in Earth Science, Vol 9 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
pumped hydro storage clean energy coal mines feasibility analysis case study Science Q |
| spellingShingle |
pumped hydro storage clean energy coal mines feasibility analysis case study Science Q Deyi Jiang Deyi Jiang Shao Chen Shao Chen Shao Chen Wenhao Liu Wenhao Liu Yiwei Ren Yiwei Ren Pengyv Guo Pengyv Guo Zongze Li Zongze Li Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| description |
In response to the Paris climate agreement, the Chinese government has taken actions to improve the energy structure by reducing the share of coal-fired thermal power and increasing the use of clean energy. However, due to the extreme shortage of large-scale energy storage facilities, the utilization efficiency of wind and solar power remains low. This paper proposes to use abandoned coal mine goafs serving as large-scale pumped hydro storage (PHS) reservoir. In this paper, suitability of coal mine goafs as PHS underground reservoirs was analyzed with respects to the storage capacity, usable capacity, and ventilation between goaf and outside. The storage capacity is 1.97 × 106 m3 for a typical mining area with an extent of 3 × 5 km2 and a coal seam thickness of 6 m. A typical goaf-PHS system with the energy type αw=0.74 has a performance of 82.8% in the case of annual operation, able to regulate solar-wind energy with an average value of 275 kW. The performance of the proposed goaf-PHS system was analyzed based on the reservoir estimation and meteorological information from a typical region in China. It has been found that using abandoned coal mine goafs to develop PHS plants is technically feasible in wind and solar-rich northwestern and southwestern China. |
| format |
article |
| author |
Deyi Jiang Deyi Jiang Shao Chen Shao Chen Shao Chen Wenhao Liu Wenhao Liu Yiwei Ren Yiwei Ren Pengyv Guo Pengyv Guo Zongze Li Zongze Li |
| author_facet |
Deyi Jiang Deyi Jiang Shao Chen Shao Chen Shao Chen Wenhao Liu Wenhao Liu Yiwei Ren Yiwei Ren Pengyv Guo Pengyv Guo Zongze Li Zongze Li |
| author_sort |
Deyi Jiang |
| title |
Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| title_short |
Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| title_full |
Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| title_fullStr |
Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| title_full_unstemmed |
Underground Hydro-Pumped Energy Storage Using Coal Mine Goafs: System Performance Analysis and a Case Study for China |
| title_sort |
underground hydro-pumped energy storage using coal mine goafs: system performance analysis and a case study for china |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/19a572d58ed24a1a985739bb7b42c79b |
| work_keys_str_mv |
AT deyijiang undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT deyijiang undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT shaochen undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT shaochen undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT shaochen undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT wenhaoliu undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT wenhaoliu undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT yiweiren undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT yiweiren undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT pengyvguo undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT pengyvguo undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT zongzeli undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina AT zongzeli undergroundhydropumpedenergystorageusingcoalminegoafssystemperformanceanalysisandacasestudyforchina |
| _version_ |
1718430481040539648 |