ملخص
We present an approach that uses the huge fluid and thermal storage capacity of the subsurface together with geologic CO2 storage, to harvest, store, and dispatch energy from subsurface (geothermal) and surface (solar, nuclear, fossil) thermal resources, as well as energy from electrical grids. Captured CO2 is injected into saline aquifers to store pressure, generate artesian flow of brine, and provide an additional working fluid for efficient heat extraction and power conversion. Concentric rings of injection and production wells are used to create a hydraulic divide to store pressure, CO2, and thermal energy. Such storage can take excess power from the grid and excess/waste thermal energy and dispatch that energy when it is demanded, enabling increased penetration of variable renewables. Stored CO2functions as a cushion gas to provide enormous pressure-storage capacity and displaces large quantities of brine, which can be desalinated and/or treated for a variety of beneficial uses. Geothermal power and energy-storage applications may generate enough revenues to justify CO2 capture costs.
اللغة الأصلية | English |
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عنوان منشور المضيف | Energy Procedia |
ناشر | Elsevier Ltd |
الصفحات | 7619-7630 |
عدد الصفحات | 12 |
مستوى الصوت | 63 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - 2014 |
الحدث | 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States المدة: أكتوبر ٥ ٢٠١٤ → أكتوبر ٩ ٢٠١٤ |
Other
Other | 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 |
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الدولة/الإقليم | United States |
المدينة | Austin |
المدة | ١٠/٥/١٤ → ١٠/٩/١٤ |
ASJC Scopus subject areas
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