Combined cycle for solar-fossil hybrid power generation
A study of the combined cycle solar hybrid system concept was initiated in October, 1978 at Bechtel as part of the solar power development program of the Department of Energy (DOE). Parametric studies were conducted on a near term and an advanced version of a nominal 100 MWe (net) commercial power system. These studies, combined with analyses of market potential in the 1985-1990 time frame, will serve as bases for selecting one of these two concept versions for conceptual design during the second half of this 12 month study. A technical and economic assessment of the concept and the preparation of a development plan and proposal will complete the study project. The combined cycle hybrid system selected by the Bechtel team for the study consists of an air operated open Brayton cycle with a steam Rankine bottoming cycle utilizing the gas turbine waste heat. Solar energy is used to preheat the air in the gas turbine cycle, with the air cooled receiver, located upstream from the combustor in a series arrangement. Cycle efficiencies of 43.5 and 47.7 percent and average annual solar fractions of .312 and .408 were predicted for the near term and advanced versions respectively.
- Research Organization:
- Bechtel National, Inc., San Francisco, CA (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- ET-78-C-03-2051
- OSTI ID:
- 6079156
- Report Number(s):
- CONF-790803-43
- Resource Relation:
- Conference: 14. intersociety energy conversion conference, Boston, MA, USA, 5 Aug 1979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
COMBINED-CYCLE POWER PLANTS
FEASIBILITY STUDIES
FOSSIL-FUEL POWER PLANTS
HYBRID SYSTEMS
SOLAR-ASSISTED POWER SYSTEMS
TOWER FOCUS POWER PLANTS
AIR HEATERS
BRAYTON CYCLE
DESIGN
ECONOMICS
GAS TURBINES
RANKINE CYCLE
SOLAR THERMAL POWER PLANTS
HEATERS
POWER PLANTS
POWER SYSTEMS
SOLAR POWER PLANTS
THERMAL POWER PLANTS
THERMODYNAMIC CYCLES
TURBINES
TURBOMACHINERY
140704* - Solar Thermal Power Systems- Total Energy & Hybrid Systems- (1980-)
200102 - Fossil-Fueled Power Plants- Power Cycles