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Title: Cost estimate of fluidized bed combustor air heater for gas turbines. Final report

Abstract

This program consisted of a study of the performance, design concept and capital cost of an unconventional coal-burning, gas turbine, electric power generation system including an indirect-fired air heater in the form of a pressurized fluidized bed (PFB) operating near stoichiometric fuel/air ratios. The system has two special features. One is the use in a turbine of clean air heated by the PFB to produce most of the electrical energy of the system. The other is the use of reduced temperature combustion gases from the PFB in an expander which has been used in industrial applications having similar erosive environment. Various cycles were evaluated, and one was selected for conceptual design and cost estimates. Indications of system reliability and factors to be resolved by research and development are presented. Capital cost of the system per installed kilowatt is higher than for the base design PFB system by about 20%. This base design PFB being developed for the Department of Energy (DOE), does not use a clean air turbine/dirty gas expander as studied here and has a higher bed operating temperature. The higher cost is due primarily to the separate compressor-expander-generator equipment associated with the combustion air system and to themore » additional number of gas turbine modules to provide the same power plant rating with a reduced turbine inlet temperature. Based on current fuel price levels, the power generation cost with this system is 20% higher than with the base PFB system and 28% lower than with oil-fired connventional boiler systems.« less

Authors:
Publication Date:
Research Org.:
Curtiss-Wright Corp., Wood-Ridge, NJ (USA)
OSTI Identifier:
6030417
Alternate Identifier(s):
OSTI ID: 6030417
Report Number(s):
EPRI-FP-995
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; GAS TURBINE POWER PLANTS; DESIGN; ECONOMIC ANALYSIS; PERFORMANCE; THERMODYNAMIC CYCLES; AIR HEATERS; CAPITAL; CLOSED-CYCLE SYSTEMS; COAL; COMPARATIVE EVALUATIONS; CORROSION; EROSION; EXPERIMENTAL DATA; FEASIBILITY STUDIES; FLUIDIZED-BED COMBUSTION; FLUIDIZED-BED COMBUSTORS; GRAPHS; MEDIUM PRESSURE; RELIABILITY; TABLES; BURNERS; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COMBUSTION; COMBUSTORS; DATA; DATA FORMS; ECONOMICS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HEATERS; INFORMATION; NUMERICAL DATA; OXIDATION; POWER PLANTS; THERMOCHEMICAL PROCESSES 200102* -- Fossil-Fueled Power Plants-- Power Cycles; 200106 -- Fossil-Fueled Power Plants-- Economics

Citation Formats

Schaefer, R. Cost estimate of fluidized bed combustor air heater for gas turbines. Final report. United States: N. p., 1979. Web.
Schaefer, R. Cost estimate of fluidized bed combustor air heater for gas turbines. Final report. United States.
Schaefer, R. Thu . "Cost estimate of fluidized bed combustor air heater for gas turbines. Final report". United States.
@article{osti_6030417,
title = {Cost estimate of fluidized bed combustor air heater for gas turbines. Final report},
author = {Schaefer, R.},
abstractNote = {This program consisted of a study of the performance, design concept and capital cost of an unconventional coal-burning, gas turbine, electric power generation system including an indirect-fired air heater in the form of a pressurized fluidized bed (PFB) operating near stoichiometric fuel/air ratios. The system has two special features. One is the use in a turbine of clean air heated by the PFB to produce most of the electrical energy of the system. The other is the use of reduced temperature combustion gases from the PFB in an expander which has been used in industrial applications having similar erosive environment. Various cycles were evaluated, and one was selected for conceptual design and cost estimates. Indications of system reliability and factors to be resolved by research and development are presented. Capital cost of the system per installed kilowatt is higher than for the base design PFB system by about 20%. This base design PFB being developed for the Department of Energy (DOE), does not use a clean air turbine/dirty gas expander as studied here and has a higher bed operating temperature. The higher cost is due primarily to the separate compressor-expander-generator equipment associated with the combustion air system and to the additional number of gas turbine modules to provide the same power plant rating with a reduced turbine inlet temperature. Based on current fuel price levels, the power generation cost with this system is 20% higher than with the base PFB system and 28% lower than with oil-fired connventional boiler systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}

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