Energy conversion alternatives study (ECAS), phase 2. Volume 1: executive summary. Final report
A data base for the comparison of advanced energy conversion systems for electric utility baseload applications using coal or coal-derived fuels was developed. Conceptual designs were developed for seven systems to permit estimates of power plant efficiency, capital cost, environmental intrusion characteristics, natural resource requirements, and cost of electricity at an assumed capacity factor of 65%. The systems studied were advanced steam with atmospheric fludized bed (AFB) and pressurized fluidized bed (PFB) heat input subsystems, a closed helium gas turbine (organic bottoming) with an AFB, a potassium topping cycle with a PFB, a combined cycle gas turbine--water cooled--burning a coal-derived liquid fuel, a combined cycle gas turbine--air cooled--integrated with LBtu gasification, and an open cycle MHD system. An emissions limit target was specified for the power plant conceptual designs. A steam power plant (3,500 psig/1000 F/1000 F) with a coal-burning radiant furnace and a wet lime stack gas scrubber (stack reheat to 250 F), analyzed in a study using the same groundrules as ECAS, were used as references for comparison. All of the systems exhibited an estimated efficiency better than the 32% reference case. Five of the systems showed a lower cost of electricity than the 39.8 mills/kWh reference case. Development plans and cost estimates were prepared for the energy conversion portion of the respective systems. An implementation assessment was performed to estimate the potential applicability of the advanced energy conversion systems in electric utility generation systems.
- Research Organization:
- General Electric Co., Schenectady, NY (USA)
- DOE Contract Number:
- NAS3-19406; E(49-18)-1751
- OSTI ID:
- 5197662
- Report Number(s):
- N-77-26631; NASA-CR-134949-V-1; SRD-76-064-1-V-1
- Country of Publication:
- United States
- Language:
- English
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FOSSIL-FUEL POWER PLANTS
COST
DESIGN
EFFICIENCY
ENVIRONMENTAL IMPACTS
BOILERS
BOTTOMING CYCLES
COAL
COAL LIQUIDS
FLUIDIZED-BED COMBUSTION
FUEL CONSUMPTION
GAS TURBINES
LOW BTU GAS
TOPPING CYCLES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
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ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
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GASES
OXIDATION
POWER PLANTS
THERMAL POWER PLANTS
THERMODYNAMIC CYCLES
TURBINES
TURBOMACHINERY
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