Numerical assessments of the effects of injected air temperature and well configuration on the cycle performance in compressed air energy storage in aquifers
| Autor: | Lichao Yang, Zuansi Cai, Cai Li, Chaobin Guo, Qingcheng He |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Geological Society, London, Special Publications. 528 |
| ISSN: | 2041-4927 0305-8719 |
| Popis: | Aquifers have advantages over salt caverns as the vessels for compressed air energy storage due to their wider availability for suitable sites and lower one-off capital investment for construction. We conducted numerical simulations for compressed air energy storage in aquifers (CAESA) to investigate the effects of injected air temperature, the number of injection/production wells and their configurations on cycle performance, based on the data from the Pittsfield CAESA test. The results show that injected air temperature has a negligible effect on the overall energy recovery efficiency, but a higher injected air temperature leads to a higher energy storage capacity. A multiple-injection/production-well arrangement can achieve a larger storage capacity than single-well systems. The distance between the injection/withdrawal wells will affect the storage capacity. This suggests that for a multiple-well CAESA system, a comprehensive modelling study should be used for the optimal system design to achieve the most desirable storage capacity. |
| Databáze: | OpenAIRE |
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