Techno-Economic Feasibility Analysis of Pumped Storage Hydroelectricity in Abandoned Underground Coal MinesSource: Journal of Energy Resources Technology:;2020:;volume( 142 ):;issue: 012::page 0122001-1DOI: 10.1115/1.4047406Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is anticipated that utilizing the underground space in abandoned mines to build and operate pumped-storage hydroelectricity (PSH) plants can reduce capital investment and geological constraints. However, there are currently few detailed investigations into techno-economic feasibility except for conceptual studies. In this paper, an underground coal mine in Guizhou, China was used as a reference, and the PSH layout was designed; in addition, the head loss, plant efficiency, and major cost components were investigated. The calculation results show that the capital investment of mine-based PSH was 33–50% less than that of conventional PSH. Sensitivity analysis found a clear influence of coal seam inclination on the performance of the mine-based PSH. Under the assumed conditions, the plant cycle efficiency increased from 62.7% to 71.5% when the coal seam dip varied from 5 deg to 25 deg. Depending on different price scenarios, when the coal seam inclination was steep enough, the cost of energy storage of a mine-based PSH plant was competitive compared with conventional PSH, and the plant could even become profitable. The influence of the dip of coal seam was more pronounced when in the lower range (5–15 deg) than the higher range (15–25 deg).
|
Collections
Show full item record
| contributor author | Shang, Dacheng | |
| contributor author | Pei, Peng | |
| contributor author | Zuo, Yujun | |
| date accessioned | 2022-02-04T22:09:13Z | |
| date available | 2022-02-04T22:09:13Z | |
| date copyright | 7/1/2020 12:00:00 AM | |
| date issued | 2020 | |
| identifier issn | 0195-0738 | |
| identifier other | jert_142_12_122001.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4274986 | |
| description abstract | It is anticipated that utilizing the underground space in abandoned mines to build and operate pumped-storage hydroelectricity (PSH) plants can reduce capital investment and geological constraints. However, there are currently few detailed investigations into techno-economic feasibility except for conceptual studies. In this paper, an underground coal mine in Guizhou, China was used as a reference, and the PSH layout was designed; in addition, the head loss, plant efficiency, and major cost components were investigated. The calculation results show that the capital investment of mine-based PSH was 33–50% less than that of conventional PSH. Sensitivity analysis found a clear influence of coal seam inclination on the performance of the mine-based PSH. Under the assumed conditions, the plant cycle efficiency increased from 62.7% to 71.5% when the coal seam dip varied from 5 deg to 25 deg. Depending on different price scenarios, when the coal seam inclination was steep enough, the cost of energy storage of a mine-based PSH plant was competitive compared with conventional PSH, and the plant could even become profitable. The influence of the dip of coal seam was more pronounced when in the lower range (5–15 deg) than the higher range (15–25 deg). | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Techno-Economic Feasibility Analysis of Pumped Storage Hydroelectricity in Abandoned Underground Coal Mines | |
| type | Journal Paper | |
| journal volume | 142 | |
| journal issue | 12 | |
| journal title | Journal of Energy Resources Technology | |
| identifier doi | 10.1115/1.4047406 | |
| journal fristpage | 0122001-1 | |
| journal lastpage | 0122001-10 | |
| page | 10 | |
| tree | Journal of Energy Resources Technology:;2020:;volume( 142 ):;issue: 012 | |
| contenttype | Fulltext |