Preliminary design study of compressed-air energy storage in a salt dome. Volume 5. System, subsystem, and component design approach. Final report

Technical Report · Thu Apr 01 04:00:00 EST 1982

OSTI ID:5328249

The approach to system, subsystem, and component design for a compressed-air energy storage (CAES) plant located in the Middle South Services, Inc., is presented in this final report. The design approach is based on the facility design criteria described in Volume 2 and the site conditions at the Carmichael salt dome located near Jackson, Mississippi. For the selected weekly cycle, Brown Boveri Corporation selected a single-casing design of fired-high-power and fired-low-power turbines. The high-power (HP) turbine operates at inlet conditions of 609.2 psia (42 bar) and 1021.4/sup 0/F (550/sup 0/C), while the low-power (LP) turbine operates at 159.5 psia (11 bar) and 1633.4/sup 0/F (890/sup 0/C). A tubular design of exhaust gas recuperator heats the incoming air from the storage cavern from 138.4/sup 0/F (60/sup 0/C) to 692/sup 0/F (367/sup 0/C). The compressor design is a single-shaft, tandem-compound arrangement with a 3600-rpm LP compressor and a 6850-rpm HP compressor. The LP compressor is a combination six-stage axial, three-stage radial compressor with an integral cooler and diffuser built into the casing. The HP compressor is a five-stage radial compressor with external intercooler provided after both the second and fourth stages. Fenix and Scisson, Inc., selected two half-size air storage caverns, each capable of delivering full-turbine air mass flow. A solutioning rate of 1750 gpm will allow completion of both caverns without prolonging construction schedule. Fuel is No. 2 distillate, which is delivered on a weekly basis. Rather than construct a rail siding to the plant, a trade-off study showed it more economical to pump the fuel oil to the CAES plant through a seven-mile buried pipeline from the nearest existing rail line. The exhaust gas recuperator, synchronous clutches, and gear case between the HP and LP compressors are key components which require special attention in design and fabrication to ensure reliable CAES plant operation.

• Research Organization: Middle South Services, Inc., New Orleans, LA (USA); Brown Boveri Corp., North Brunswick, NJ (USA); Fenix and Scisson, Inc., Tulsa, OK (USA); United Engineers and Constructors, Inc., Philadelphia, PA (USA)
• DOE Contract Number: AC01-77ET29332
• OSTI ID: 5328249
• Report Number(s): EPRI-EM-2210-Vol.5; ON: DE82014353
• Country of Publication: United States
• Language: English

Related Subjects

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200107 -- Fossil-Fueled Power Plants-- Off-Peak Energy Storage-- (1980-)
25 ENERGY STORAGE
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CAVITIES
COMPRESSED AIR ENERGY STORAGE
COMPRESSED AIR STORAGE POWER PLANTS
COMPRESSORS
DESIGN
ENERGY STORAGE
EQUIPMENT
FEDERAL REGION IV
GAS TURBINES
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PEAKING POWER PLANTS
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SALT CAVERNS
SPECIFICATIONS
STORAGE
TURBINES
TURBOMACHINERY
USA