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Title: Direct FuelCell/Turbine Power Plant

Abstract

This report includes the progress in development of Direct Fuel Cell/Turbine. (DFC/T.) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha sub-MW DFC/T power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. Following these proof-of-concept tests, a stand-alone test of the microturbine verified the turbine power output expectations at an elevated (representative of the packaged unit condition) turbine inlet temperature. Preliminary design of the packaged sub-MW alpha DFC/T unit has been completed and procurement activity has been initiated. The preliminary design of a 40 MW power plant including the key equipment layoutmore » and the site plan was completed. A preliminary cost estimate for the 40 MW DFC/T plant has also been prepared. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Alternate stack flow geometries for increased power output/fuel utilization capabilities are also being evaluated.« less

Authors:
Publication Date:
Research Org.:
FuelCell Energy, Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
888917
DOE Contract Number:  
FC26-00NT40798
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; 20 FOSSIL-FUELED POWER PLANTS; 24 POWER TRANSMISSION AND DISTRIBUTION; 30 DIRECT ENERGY CONVERSION; BRAYTON CYCLE; CARBON DIOXIDE; COAL GAS; COMBINED-CYCLE POWER PLANTS; DESIGN; EFFICIENCY; FUEL CELLS; GAS TURBINES; NATURAL GAS; POWER GENERATION; POWER PLANTS; POWER SYSTEMS; PROCUREMENT; PROGRESS REPORT; TESTING; TURBINES

Citation Formats

Ghezel-Ayagh, Hossein. Direct FuelCell/Turbine Power Plant. United States: N. p., 2004. Web. doi:10.2172/888917.
Ghezel-Ayagh, Hossein. Direct FuelCell/Turbine Power Plant. United States. https://doi.org/10.2172/888917
Ghezel-Ayagh, Hossein. 2004. "Direct FuelCell/Turbine Power Plant". United States. https://doi.org/10.2172/888917. https://www.osti.gov/servlets/purl/888917.
@article{osti_888917,
title = {Direct FuelCell/Turbine Power Plant},
author = {Ghezel-Ayagh, Hossein},
abstractNote = {This report includes the progress in development of Direct Fuel Cell/Turbine. (DFC/T.) power plants for generation of clean power at very high efficiencies. The DFC/T power system is based on an indirectly heated gas turbine to supplement fuel cell generated power. The DFC/T power generation concept extends the high efficiency of the fuel cell by utilizing the fuel cell's byproduct heat in a Brayton cycle. Features of the DFC/T system include: electrical efficiencies of up to 75% on natural gas, 60% on coal gas, minimal emissions, simplicity in design, direct reforming internal to the fuel cell, reduced carbon dioxide release to the environment, and potential cost competitiveness with existing combined cycle power plants. FCE successfully completed testing of the pre-alpha sub-MW DFC/T power plant. This power plant was constructed by integration of a 250kW fuel cell stack and a microturbine. Following these proof-of-concept tests, a stand-alone test of the microturbine verified the turbine power output expectations at an elevated (representative of the packaged unit condition) turbine inlet temperature. Preliminary design of the packaged sub-MW alpha DFC/T unit has been completed and procurement activity has been initiated. The preliminary design of a 40 MW power plant including the key equipment layout and the site plan was completed. A preliminary cost estimate for the 40 MW DFC/T plant has also been prepared. The tests of the cascaded fuel cell concept for achieving high fuel utilizations were completed. The tests demonstrated that the concept results in higher power plant efficiency. Alternate stack flow geometries for increased power output/fuel utilization capabilities are also being evaluated.},
doi = {10.2172/888917},
url = {https://www.osti.gov/biblio/888917}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Nov 19 00:00:00 EST 2004},
month = {Fri Nov 19 00:00:00 EST 2004}
}