Turbomachinery options for an underground pumped hydroelectric storage plant
Various turbomachinery options for underground pumped hydroelectric storage (UPHS) plants are reviewed. Current technology indicates that the maximum head for single-stage, reversible, Francis-type pump turbines is 625 m; for separate, single-stage, Francis-type turbines and multistage pumps, 672 m; for tandem units consisting of separate multijet impulse turbines and multistage pumps, 1440 m; and for multistage, reversible, ungated Francis-type pump turbines, 1290 m. Engineering design studies conducted for Argonne National Laboratory indicated that heads for the single-stage reversible units could be extended to 1000 m, developing 500-MW output per unit. The studies also indicated that two-stage, reversible, Francis-type pump turbines with adjustable wicket gates could be developed for power outputs up to 500 MW at operating heads as high as 1500 m. Results of these studies, including performance and design data, are presented. Using the cost of a single-stage, reversible, Francis-type pump turbine as 1, the approximate cost of other turbomachines is: 1.55 for a single-gated, two-stage, reversible pump turbine; 1.67 for a double-gated, two-stage, reversible pump turbine; 1.9 for an ungated, multistage, reversible pump turbine; and 3.3 for a tandem unit (Pelton and pump).
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6080921
- Report Number(s):
- CONF-790803-50
- Resource Relation:
- Conference: 14. intersociety energy conversion conference, Boston, MA, USA, 5 Aug 1979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of advanced hydraulic turbomachinery for underground pumped hydroelectric storage. Part 2. Two-stage regulated pump/turbines for operating heads of 1000 to 1500 m
Evaluation of advanced turbomachinery for underground pumped hydroelectric storage. Part 3. Multistage unregulated pump/turbines for operating heads of 1000 to 1500 m
Related Subjects
25 ENERGY STORAGE
PUMPED STORAGE POWER PLANTS
TURBOMACHINERY
COST
DESIGN
PERFORMANCE
HYDRAULIC TURBINES
HYDROELECTRIC POWER
PUMPS
UNDERGROUND
ELECTRIC POWER
ENERGY SOURCES
HYDROELECTRIC POWER PLANTS
LEVELS
PEAKING POWER PLANTS
POWER
POWER PLANTS
RENEWABLE ENERGY SOURCES
TURBINES
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