A cost-effective indirect coal-fired gas turbine power and water-from-air cycle

Conference · Fri Mar 01 00:00:00 EST 1985 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5506371

Trumpler, P R

An ideal open cycle gas turbine with multiple-stage intercooled compression and multiple-stage reheat expansion theoretically approaches Carnot thermal efficiency. A proposed practicable process to utilize this cycle with indirect firing of coal as fuel, with an air heater in place of the boiler, a turbine inlet temperature of 1700/sup 0/F (927/sup 0/C) and top pressure of 788 psia (53.6 atm) gives promise of lowering power plant station heat rates (HHV) from 8970 Btu/kWh currently realized by the best scrubber-equipped coal fired steam plants to 7460, a reduction of 16.8% in fuel consumption and consequently the cost of flue gas scrubbers. In addition, a 316 MW plant delivers at rated output 130,000 gal per day water stripped from atmospheric air. Primarily because of an expensive air heater and regenerator, the gas turbine plant is penalized by an estimated increase in initial cost from $1000/kW for a steam plant to $1433/kW. With coal priced at $3/million Btu, water selling at 2 /gal, money at 8% interest, inflation at 5%, and an 81% plant capacity factor, the payback period is 17 years.

• Research Organization: Trumpler Associates, Inc., West Chester, PA
• OSTI ID: 5506371
• Report Number(s): CONF-850351-
• Journal Information: Am. Soc. Mech. Eng., (Pap.); (United States), Vol. 85-GT-54; Conference: 30. international gas turbine conference and exhibit, Houston, TX, USA, 18 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES
COAL-FIRED GAS TURBINES
AIR POLLUTION CONTROL
FUEL SYSTEMS
THERMODYNAMIC CYCLES
AIR HEATERS
COAL
COMBUSTION
COOLING SYSTEMS
COST BENEFIT ANALYSIS
OPERATION
SCRUBBERS
THERMAL EFFICIENCY
WATER
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CONTROL
EFFICIENCY
ENERGY SOURCES
ENERGY SYSTEMS
EQUIPMENT
FOSSIL FUELS
FUELS
GAS TURBINES
HEATERS
HYDROGEN COMPOUNDS
MACHINERY
MATERIALS
OXIDATION
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
010900* - Coal
Lignite
& Peat- Environmental Aspects
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)