Advanced Coal Gasification Combined Cycle Power Plant

1985 ◽  
Author(s):  
J. Pavel ◽  
M. B. Blinn ◽  
G. B. Haldipur
Keyword(s):  
Power Plant ◽  
Coal Gasification ◽  
Heat Rate ◽  
Combined Cycle ◽  
Advanced Technology ◽  
Operating Costs ◽  
Fuel Gas ◽  
Combined Cycle Power Plant ◽  
Particulate Removal ◽  
Net Power Output

This paper describes the conceptual design of an advanced technology coal gasification combined cycle power plant which has significant advantages over other power generation technologies. The plant is expected to provide lower capital and operating costs and superior environmental acceptability than other modes of generation. The design is based on the KRW Energy Systems Inc.’s pressurized fluidized bed coal gasification system. Hot cleaning of the fuel gas is accomplished using concepts being developed at the Waltz Mill pilot plant. Desulfurization of the fuel gas is by injection of dolomite into the gasifier bed. Final particulate removal is accomplished by an external filter. Net power output from the plant is 73 MW and the overall plant heat rate is 8760 Btu/KWh (HHV).

Effect of Fuel Gas Cleanup Option on Air-Blown IGCC Power Plant Performance

1997 ◽  
Author(s):  
W. C. Yang ◽  
R. A. Newby ◽  
R. L. Bannister
Keyword(s):  
Power Plant ◽  
Process Model ◽  
Coal Gasification ◽  
Heat Rate ◽  
Combined Cycle ◽  
Plant Performance ◽  
Fuel Gas ◽  
Gas Cleaning ◽  
Plant Sensitivity ◽  
Parametric Studies

Air-blown coal gasification for combined-cycle power generation is a technology soon to be demonstrated. A process evaluation of air-blown IGCC performed to estimate the plant heat rate, electrical output and potential emissions are described in this paper. A process model of an air-blown IGCC power system based on the Westinghouse 501F combustion turbine was developed to conduct the performance evaluation. Parametric studies were performed to develop an understanding of the power plant sensitivity to the major operating parameters and process options. Advanced hot fuel gas cleaning and conventional cold fuel gas cleaning options were both considered.

Medway: A High-Efficiency Combined Cycle Power Plant Design

1995 ◽  
Vol 117 (4) ◽  
pp. 713-723 ◽  
Author(s):  
D. M. Leis ◽  
M. J. Boss ◽  
M. P. Melsert
Keyword(s):  
Power Plant ◽  
Steam Turbine ◽  
High Reliability ◽  
System Optimization ◽  
Combined Cycle ◽  
Advanced Technology ◽  
Plant Design ◽  
Turbine Generator ◽  
Combined Cycle Power Plant ◽  
Plant System

The Medway Project is a 660 MW combined cycle power plant, which employs two of the world’s largest advanced technology MS9001FA combustion turbine generators and an advanced design reheat steam turbine generator in a power plant system designed for high reliability and efficiency. This paper discusses the power plant system optimization and design, including thermodynamic cycle selection, equipment arrangement, and system operation. The design of the MS9001FA combustion turbine generator and the steam turbine generator, including tailoring for the specific application conditions, is discussed.

HRSG Duct Firing Revisited

2018 ◽  
Author(s):  
S. Can Gülen
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Power Output ◽  
Gas Turbines ◽  
Heat Recovery ◽  
Fossil Fuel ◽  
Heat Rate ◽  
Combined Cycle ◽  
Efficiency Improvement ◽  
Combined Cycle Power Plant

Duct firing in the heat recovery steam generator (HRSG) of a gas turbine combined cycle power plant is a commonly used method to increase output on hot summer days when gas turbine airflow and power output lapse significantly. The aim is to generate maximum possible power output when it is most needed (and, thus, more profitable) at the expense of power plant heat rate. In this paper, using fundamental thermodynamic arguments and detailed heat and mass balance simulations, it will be shown that, under certain boundary conditions, duct firing in the HRSG can be a facilitator of efficiency improvement as well. When combined with highly-efficient aeroderivative gas turbines with high cycle pressure ratios and concomitantly low exhaust temperatures, duct firing can be utilized for small but efficient combined cycle power plant designs as well as more efficient hot-day power augmentation. This opens the door to efficient and agile fossil fuel-fired power generation opportunities to support variable renewable generation.

Overall Performance of Advanced H2/Air Cycle Power Plants Based on Coal Decarbonisation

2005 ◽  
Author(s):  
M. Gambini ◽  
M. Vellini
Keyword(s):  
Power Plant ◽  
Hydrogen Production ◽  
Power Plants ◽  
Coal Gasification ◽  
Combined Cycle ◽  
Fuel Gas ◽  
Production Section ◽  
Pinch Technology ◽  
Energy Economy ◽  
Overall Performance

In this paper the overall performance of a new advanced mixed cycle (AMC), fed by hydrogen-rich fuel gas, has been evaluated. Obviously, hydrogen must be produced and here we have chosen the coal gasification for its production, quantifying all the thermal and electric requirements. At first, a simple combination between hydrogen production section and power section is performed. In fact, the heat loads of the first section can be satisfied by using the various raw syngas cooling, without using some material streams taken from the power section, but also without using part of heat, available in the production section and rejected into the environment, in the power section. The final result is very poor: over 34%. Then, by using the Pinch Technology, a more efficient, even if more complex, solution can be conceived: in this case the overall efficiency is very interesting: 39%. These results are very similar to those of a combined cycle power plant, equipped with the same systems and analyzed under the same hypotheses. The final result is very important because the “clean” use of coal in new power plant types must be properly investigated: in fact coal is the most abundant and the cheapest fossil fuel available on earth; moreover, hydrogen production, by using coal, is an interesting outlook because hydrogen has the potential to become the main energy carrier in a future sustainable energy economy.

A Combined Cycle Power Generation/Alfalfa Processing System: Part 1 — Development and Testing

1998 ◽  
Author(s):  
John S. Brushwood ◽  
Ken Campbell ◽  
C. V. Hanson ◽  
Andras Horvath ◽  
Thomas Vivenzio
Keyword(s):  
Power Plant ◽  
Processing System ◽  
Combined Cycle ◽  
Department Of Energy ◽  
University Of Minnesota ◽  
Project Development ◽  
Fuel Gas ◽  
Combined Cycle Power Plant ◽  
Exhaust Heat ◽  
System Part

The Minnesota Valley Alfalfa Producers (MnVAP), a farmer owned cooperative, is developing a 75 MW combined cycle power plant integrated with alfalfa processiag facilities in southwestern Minnesota. The Minnesota Agri-Power (MAP) project is supported by the U. S. Department of Energy and a project development team that includes Stone & Webster, the University of Minnesota, United Power Association, Carbona Corporation/Kvaerner Pulping Inc. and Westinghouse. Alfalfa processing facilities separate the fibrous stem material from the protein-rich leaf fraction. The resulting alfalfa leaf meal (ALM) is further processed into a variety of valuable livestock feed products. Alfalfa stem material is gasified using air-blown fluidized bed technology to produce a hot, clean, fuel gas. The fuel gas is fired in a combustion turbine and the exhaust heat is used to produce steam to power a steam turbine. At base load, the electric power plant will consume 1000 tons per day of biomass fuel. This paper briefly describes the project development activities of the alfalfa feed trials and the combined cycle power plant. This commercial scale demonstration represents an important milestone on a continuing pathway towards environmentally and economically sustainable energy systems.

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