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Selection and conceptual design of an advanced thermal-energy-storage subsystem for commercial-scale (100 MWe) solar central-receiver power plant

Technical Report ·
DOI:https://doi.org/10.2172/6487086· OSTI ID:6487086

Advanced thermal energy storage concepts were developed and evaluated which are applicable to a 100 MWe solar central receiver plant using water/steam as the working fluid. Operating conditions studied were 510C/10.1 MPa (950F/1465 psia) from the receiver and 299C/2.72 MPa (570F/395 psia) from storage. Three concepts were selected that offered potential for cost and performance improvements over the oil/rock concept presently being installed at the central receiver 10 MWe pilot plant under construction in Barstow, California. From the three concepts selected, the moving bed thermal energy storage system (MBTESS) using a free flowing refractory material as the heat transport and storage media was chosen. A conceptual design was developed, including estimates for cost and performance. Suggestions were made for further development work leading to full scale implementation of the concept.

Research Organization:
Sandia National Labs., Livermore, CA (USA); Babcock and Wilcox Co., Lynchburg, VA (USA). Nuclear Power Generation Div.
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6487086
Report Number(s):
SAND80-8190; ON: DE81024263; BAW-1662
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140702* -- Solar Thermal Power Systems-- Central Receiver
142000 -- Solar Energy-- Heat Storage-- (1980-)
25 ENERGY STORAGE
250600 -- Energy Storage-- Thermal
COST
CSP
Concentrating Solar Power
DESIGN
DIAGRAMS
ENERGY STORAGE
ENERGY TRANSFER
EQUIPMENT
FLUIDS
FUNCTIONAL MODELS
HEAT EXCHANGERS
HEAT STORAGE
HEAT TRANSFER
PERFORMANCE
PILOT PLANTS
POWER PLANTS
POWER RANGE 10-100 MW
SOLAR POWER PLANTS
SOLAR THERMAL POWER PLANTS
STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
THERMAL POWER PLANTS
TOWER FOCUS POWER PLANTS
WORKING FLUIDS