Conceptual design of advanced central receiver power systems sodium-cooled receiver concept. Volume 2, Book 1. Commercial plant conceptual design. Final report

Technical Report · Thu Mar 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/5625514· OSTI ID:5625514

The conceptual design of the 100-MW solar tower focus commercial power plant is described in detail. Sodium is pumped up to the top of a tall tower where the receiver is located. The sodium is heated in the receiver and then flows down the tower, through a pressure reducing device, and thence into a large, hot storage tank which is located at ground level and whose size is made to meet a specific thermal energy storage capacity requirement. From this tank, the sodium is pumped by a separate pump, through a system of sodium-to-water steam generators. The steam generator system consists of a separate superheater and reheater operating in parallel and an evaporator unit operating in series with the other two units. The sodium flowing from the evaporator unit is piped to a cold storage tank. From the cold storage tank, sodium is then pumped up to the tip of the tower to complete the cycle. The steam generated in the steam generators is fed to a conventional off-the-shelf, high-efficiency turbine. The steam loop operates in a conventional rankine cycle with the steam generators serving the same purpose as a conventional boiler and water being fed to the evaporator with conventional feedwater pumps. The pressure reducing device (a standard drag valve, for example) serves to mitigate the pressure caused by the static head of sodium and thus allows the large tanks to operate at ambient pressure conditions. (WHK)

• Research Organization: Rockwell International Corp., Canoga Park, CA (USA). Energy Systems Group
• OSTI ID: 5625514
• Report Number(s): SAN-1483-1/2; ESG-79-2(Vol.2)(Bk.1)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140702* -- Solar Thermal Power Systems-- Central Receiver
ALKALI METALS
BOILERS
CENTRAL RECEIVERS
CONTROL SYSTEMS
DEMONSTRATION PLANTS
DESIGN
ELEMENTS
ENERGY STORAGE
EQUIPMENT
EVAPORATORS
FLUIDS
HEAT STORAGE
HEAT TRANSFER FLUIDS
HEATING
HELIOSTATS
LIQUID METALS
LIQUIDS
MACHINERY
MATHEMATICAL MODELS
METALS
PARAMETRIC ANALYSIS
POWER PLANTS
POWER RANGE 10-100 MW
POWER SYSTEMS
RANKINE CYCLE POWER SYSTEMS
SENSIBLE HEAT STORAGE
SODIUM
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR RECEIVERS
SOLAR THERMAL POWER PLANTS
STEAM GENERATORS
STEAM TURBINES
STORAGE
SUPERHEATING
SYSTEMS ANALYSIS
THERMAL ENERGY STORAGE EQUIPMENT
TOWER FOCUS POWER PLANTS
TURBINES
TURBOMACHINERY
VAPOR GENERATORS