Cost and performance of thermal storage concepts in solar thermal systems, phase 2-liquid metal receivers
Cost and performance of various thermal storage concepts in a liquid metal receiver solar thermal power system application have been evaluated. The objectives of this study are to provide consistently calculated cost and performance data for thermal storage concepts integrated into solar thermal systems. Five alternative storage concepts are evaluated for a 100-MW /SUB e/ liquid metal-cooled receiver solar thermal power system for 1, 6, and 15 hours of storage: sodium 2-tank (reference system), molten draw salt 2-tank, sand moving bed, air/rock, and latent heat (phase change) with tube-intensive heat exchange (HX). The results indicate that the all sodium 2-tank thermal storage concept is not cost-effective for storage in excess of 3 or 4 hours; the molten draw salt 2-tank storage concept provides significant cost savings over the reference sodium 2-tank concept; and the air/rock storage concept with pressurized sodium buffer tanks provides the lowest evaluated cost of all storage concepts considered above 6 hours of storage.
- Research Organization:
- Stearms Roger Services Inc., Denver, CO
- OSTI ID:
- 6882057
- Report Number(s):
- CONF-820814-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 4; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140700* -- Solar Thermal Power Systems
142000 -- Solar Energy-- Heat Storage-- (1980-)
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
CONTAINERS
COOLANTS
COST BENEFIT ANALYSIS
ELEMENTS
ENERGY STORAGE
EQUIPMENT
FLUIDS
HEAT STORAGE
LIQUID METALS
LIQUIDS
MATERIALS
METALS
MOLTEN SALTS
PERFORMANCE
PHASE CHANGE MATERIALS
POWER PLANTS
ROCK BEDS
SALTS
SOLAR POWER PLANTS
SOLAR RECEIVERS
SOLAR THERMAL POWER PLANTS
STORAGE
STORAGE LIFE
TANKS
THERMAL ENERGY STORAGE EQUIPMENT
THERMAL POWER PLANTS