The economics of repowering steam turbines
- General Electric Co., Schenectady, NY (United States)
Repowering is defined as displacing steam presently generated in an existing fossil fuel fired boiler with a gas turbine-heat recovery steam generator (HRSG) system. The steam generated in the HRSG is expanded in the existing steam turbine generator. Repowering advantages include a significant increase in power output at an improved heat rate relative to the base value for the existing steam turbine cycle being repowered. In addition, the reduction in emissions can be advantageous in most locations. This paper discusses application and economic considerations associated with repowering. In addition, an illustration will show how repowering coal fired steam turbine systems may prove economic relative to retrofit scrubbers and/or low sulfur coal fuel substitution that may be part of the forthcoming acid rain legislation.
- OSTI ID:
- 6122355
- Report Number(s):
- CONF-9004133--
- Journal Information:
- Proceedings of the American Power Conference; (United States), Journal Name: Proceedings of the American Power Conference; (United States) Vol. 52; ISSN PAPWA; ISSN 0097-2126
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200102* -- Fossil-Fueled Power Plants-- Power Cycles
200600 -- Fossil-Fueled Power Plants-- Economic
Industrial
& Business Aspects-- (1990-)
ACID RAIN
ATMOSPHERIC PRECIPITATIONS
CARBONACEOUS MATERIALS
COAL
COMBINED-CYCLE POWER PLANTS
ECONOMICS
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
GAS TURBINE POWER PLANTS
GAS TURBINES
HEAT RECOVERY EQUIPMENT
LEGISLATION
MACHINERY
MATERIALS
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RAIN
RETROFITTING
SCRUBBERS
STEAM TURBINES
SULFUR CONTENT
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION