Thermal energy storage for advanced solar central receiver power systems
Thermal energy storage is used in the advanced solar central receiver power systems currently being studied under Department of Energy sponsorship. This report describes: (1) the storage operating requirements imposed by interface constraints between energy storage and the receiver and electrical power generation systems, (2) several storage concept candidates which may meet these requirements, (3) potential cost differences between each of the storage concepts, and (4) the technical uncertainties associated with each storage concept. The storage concept candidates include (1) all sodium sensible heat with hot and cold storage tanks; (2) sodium/cast iron sensible heat using thermocline principle; (3) air/rock sensible heat using thermocline principle; (4) air/MgO sensible heat using thermocline principle; (5) air/cast iron sensible heat using thermocline principle; (6) molten salt sensible heat using thermocline principle; (7) molten salt sensible heat with hot and cold storage tanks; and (8) molten salt/rock sensible heat using thermocline principle.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 6636441
- Report Number(s):
- SAND78-8221
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140702 -- Solar Thermal Power Systems-- Central Receiver
142000* -- Solar Energy-- Heat Storage-- (1980-)
25 ENERGY STORAGE
250600 -- Energy Storage-- Thermal
AIR
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
CENTRAL RECEIVERS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CONTAINERS
CSP
Concentrating Solar Power
ELEMENTS
ENERGY STORAGE
EQUIPMENT
FLUIDS
GASES
HEAT STORAGE
IRON
LIQUID METALS
LIQUIDS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
POWER PLANTS
ROCK BEDS
SENSIBLE HEAT STORAGE
SODIUM
SOLAR POWER PLANTS
SOLAR RECEIVERS
SOLAR THERMAL POWER PLANTS
STORAGE
STRATIFICATION
TANKS
THERMAL ENERGY STORAGE EQUIPMENT
TOWER FOCUS POWER PLANTS
TRANSITION ELEMENTS