Advanced coal-fueled combustor/heat exchanger technology study

Technical Report · Thu Jun 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/5530717· OSTI ID:5530717

Campbell, Jr., J. C.

Much of the rationale for studying the coal-fired, closed-cycle, gas turbine, power generation system lies in two factors. The closed-cycle gas turbine power system, which utilizes a non-condensing working fluid, is capable of higher overall thermal efficiencies than is the conventional steam based Rankine system utilized in present day steam power stations. It utilizes higher working fluid temperatures to achieve this higher efficiency. Additionally, the utilization of the closed-cycle as opposed to the open gas turbine cycle, isolates the turbomachinery from the products of coal combustion. These coal combustion products are so dirty, corrosive, and erosive that no practical system for their direct utilization in gas turbines has yet been devised, and near term achievement of practical coal-fired, open-cycle gas turbines appears unlikely. The direct coal firing of heat exchangers, by comparison, is present day state-of-the-art at the lower working fluid temperatures typical of today's steam based power cycles. The operating requirements for the coal-fired combustor/heat exchanger of a closed-cycle gas turbine power conversion system differ from those of steam boilers in several respects, particularly as regards maximum heating surface temperatures. But they are sufficiently similar that the attainment of technology readiness for such combustor/heat exchangers is expected to be attainabled for modest development costs and in the near future, thus permitting more efficient utilization of the only economically abundant US fuel, coal. The effort contracted under EF-77--01-2612 consisted entirely of studies, analyses, design effort and reporting. No fabrication or test effort was involved.

• Research Organization: Rockwell International Corp., Canoga Park, CA (USA). Rocketdyne Div.
• DOE Contract Number: EF-77-C-01-2612
• OSTI ID: 5530717
• Report Number(s): FE-2612-13
• Country of Publication: United States
• Language: English

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01 COAL, LIGNITE, AND PEAT
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ALLOY-HK-40
ALLOYS
ALUMINIUM ALLOYS
BOTTOMING CYCLES
CARBONACEOUS MATERIALS
CERAMICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
CLOSED-CYCLE SYSTEMS
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COBALT ALLOYS
COMBUSTION
COMBUSTORS
CORROSION
CORROSION RESISTANT ALLOYS
CREEP
DATA
DATA FORMS
DESIGN
ENERGY SOURCES
ENERGY TRANSFER
FEASIBILITY STUDIES
FLUIDIZED-BED COMBUSTION
FLUIDS
FOSSIL FUELS
FUELS
GAS TURBINES
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HASTELLOY X
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HAYNES 188 ALLOY
HEAT EXCHANGERS
HEAT RESISTANT MATERIALS
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INCOLOY 800
INCOLOY ALLOYS
INCONEL 617
INCONEL ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MANGANESE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ADDITIONS
NIOBIUM ALLOYS
NUMERICAL DATA
OXIDATION
PRICES
SILICON ALLOYS
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEEL-347
STAINLESS STEELS
STEELS
TABLES
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC CYCLES
TUNGSTEN ALLOYS
TURBINES
TURBOMACHINERY
WORKING FLUIDS