Repowering options for steam power plants

Conference · Wed Jan 01 04:00:00 EST 1992 · Proceedings of the American Power Conference; (United States)

OSTI ID:7309531

Wen, H; Gopalarathinam, R ^[1]

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1. Bechtel Corp., Gaithersburg, MD (US)

Repowering an existing steam power plant with a gas turbine offers an attractive alternative to a new plant or life extension, especially for unit sizes smaller than 300 MWe. Gas turbine repowering improves thermal efficiency and substantially increases the plant output. Based on recent repowering studies and projects, this paper examines gas turbine repowering options for 100 MWe, 200 MWe and 300 MWe units originally designed for coal firing and currently firing either coal or natural gas. Also discussed is the option for a phased future conversion of the repowered unit to fire coal-derived gas, should there be a fluctuation in the price or availability of natural gas. A modular coal gasification plant designed to shorten the conversion time is presented. Repowering options, performance, costs, and availability impacts are discussed for selected cases.

• OSTI ID: 7309531
• Report Number(s): CONF-920432--
• Conference Information: Journal Name: Proceedings of the American Power Conference; (United States) Journal Volume: 54:1
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200101* -- Fossil-Fueled Power Plants-- Cooling & Heat Transfer Equipment & Systems
29 ENERGY PLANNING, POLICY, AND ECONOMY
290201 -- Energy Planning & Policy-- Economics-- (1992-)
AVAILABILITY
BOILERS
COAL GAS
COAL GASIFICATION PLANTS
COST
DEMAND
EFFICIENCY
ENERGY DEMAND
ENERGY SOURCES
EQUIPMENT
FLUCTUATIONS
FLUIDS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
INDUSTRIAL PLANTS
MACHINERY
NATURAL GAS
PERFORMANCE
POWER PLANTS
PRODUCTIVITY
PYROLYSIS PRODUCTS
RETROFITTING
SIZE
STEAM GENERATORS
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY
VAPOR GENERATORS
VARIATIONS