scholarly journals Develop a concept for fluidized-bed combustion of consol char using closed-cycle gas turbine. Interim report for period ending May 21, 1976. [Vapor, 700/sup 0/K-1400/sup 0/K, experimental and predicted values]

1976 ◽  
Author(s):  
A. Himmelblau
Keyword(s):  
Gas Turbine ◽  
Fluidized Bed ◽  
Closed Cycle ◽  
Interim Report ◽  
Fluidized Bed Combustion ◽  
Predicted Values

Utilization of Fluidized Bed Combustion in Energy Recovery from Solid Wastes

1980 ◽  
Vol 102 (3) ◽  
pp. 168-172 ◽  
Author(s):  
J. R. Hamm ◽  
D. L. Keairns
Keyword(s):  
Gas Turbine ◽  
Fluidized Bed ◽  
Energy Recovery ◽  
Combustion Process ◽  
Combined Cycle ◽  
Solid Wastes ◽  
Space Heating ◽  
Closed Cycle ◽  
Fluidized Bed Combustion ◽  
Near Term

Fluidized bed combustion is capable of utilizing a wider variety of fuels (including solid wastes) than is any other combustion process. Thus, it has the potential for wide application in systems for recovering energy from solid wastes in industry, commercial sites, institutions, forestry, and agriculture to produce electric power, process steam, process heat, and space heating. Three fluidized bed combustion concepts are identified for near-term application: atmospheric fluidized bed boiler, exhaust-heated gas turbine or combined cycle, and closed-cycle gas turbine.

Design of a 6- by 6-Foot Coal-Fired Heater for a CCGT Air Heater

1982 ◽  
Author(s):  
L. H. Russell ◽  
J. Campbell
Keyword(s):  
Gas Turbine ◽  
Fluidized Bed ◽  
Atmospheric Pressure ◽  
Coal Combustion ◽  
Department Of Energy ◽  
Working Fluid ◽  
Design Rationale ◽  
Closed Cycle ◽  
Cogeneration System ◽  
The U.S

The U.S. Department of Energy is sponsoring a program of research and development on coal-fired heaters to provide heat input to the working fluid of a closed-cycle gas turbine/cogeneration system. One of the fired heater concepts being researched employs the atmospheric pressure fluidized bed coal combustion concept. This paper describes a research oriented atmospheric fluidized bed of 6- by 6-foot plan dimensions that has been designed and is being constructed for utilization during the R&D program. The design rationale is presented, details of the more significant details are described and discussed, and the planned methods for utilizing the 6- by 6-foot AFB as a research tool are presented.

scholarly journals Effect of Pressure on Second-Generation Pressurized Fluidized Bed Combustion Plants

1994 ◽  
Vol 116 (2) ◽  
pp. 345-351 ◽  
Author(s):  
A. Robertson ◽  
D. Bonk
Keyword(s):  
Gas Turbine ◽  
Fluidized Bed ◽  
Coal Gasification ◽  
Second Generation ◽  
Electrical Power ◽  
Fluidized Bed Combustion ◽  
Fuel Gas ◽  
Combustion Gas ◽  
New Type ◽  
Pressurized Fluidized Bed Combustion

In the search for a more efficient, less costly, and more environmentally responsible method for generating electrical power from coal, research and development has turned to advanced pressurized fluidized bed combustion (PFBC) and coal gasification technologies. A logical extension of this work is the second-generation PFBC plant, which incorporates key components of each of these technologies. In this new type of plant, coal is devolatilized/carbonized before it is injected into the PFB combustor bed, and the low-Btu fuel gas produced by this process is burned in a gas turbine topping combustor. By integrating coal carbonization with PFB coal/char combustion, gas turbine inlet temperatures higher than 1149°C (2100°F) can be achieved. The carbonizer, PFB combustor, and particulate-capturing hot gas cleanup systems operate at 871°C (1600°F), permitting sulfur capture by time-based sorbents and minimizing the release of coal contaminants to the gases. This paper presents the performance and economics of this new type of plant and provides a brief overview of the pilot plant test programs being conducted to support its development.

scholarly journals Modified Combined Cycle With Pressure Fluidized Bed Combustion Boiler

1992 ◽  
Author(s):  
Jacek Dzierzgowski ◽  
Stanislaw Sobkowski
Keyword(s):  
Combustion Chamber ◽  
Gas Turbine ◽  
Fluidized Bed ◽  
Flue Gas ◽  
Thermal Efficiency ◽  
Combined Cycle ◽  
The Other ◽  
Fluidized Bed Combustion ◽  
Air Stream ◽  
Gas Turbine Compressor

The article describes conversion of conventional steam cycle with 200 MW turbine into combined steam-gas cycle with pressure fluidized bed combustion boiler. In order to raise cycle thermal efficiency an additional combustion chamber before a gas turbine was introduced. Two modifications of the combined cycle were considered. In one of them natural gas in the additional combustion chamber is burnt with the boiler flue gas only. In the other gas is burnt with additional air stream taken from behind the gas turbine compressor. Optimizing calculations of the cycle thermal efficiency in function of some cycle’s main parameters were carried out.

Coal-Fired, Closed-Cycle, Gas Turbine Cogeneration Systems

1980 ◽  
Author(s):  
J. Campbell ◽  
J. C. Lee ◽  
D. E. Wright
Keyword(s):  
Steam Turbine ◽  
Gas Turbine ◽  
Fluidized Bed ◽  
Coal Combustion ◽  
Petroleum Products ◽  
Ash Content ◽  
Working Fluid ◽  
Closed Cycle ◽  
Thermodynamic Cycles ◽  
Technical Features

Cogeneration systems capable of utilizing our abundant coal resources are now especially attractive, as petroleum products are relatively expensive. However, coal-fired systems must inevitably cope with the abrasive and fouling character of the noncombustible ash content of all coals. This paper discusses the characteristics and cogeneration potential of the coal-fired, closed-cycle, gas turbine system (in which the working fluid is isolated from the products of coal combustion). Many closed-cycle, gas turbine thermodynamic cycles may be adapted to cogeneration. Parametric performance data are presented. The advantages of closed-cycle, gas turbine system/cogeneration cycles are explored, and comparisons are made between such systems and the more conventional steam-turbine based cogeneration cycles. The technology of closed-cycle fired heaters, including pulverized coal and fluidized bed firing is discussed. The key technical features of the fired heaters are discussed.

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