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Title: Analysis of the application of fuel cells in dual energy use systems

Abstract

This study was conducted to assess the technical and financial issues asociated with utility-owned, grid-connected, dispersed fuel cells operating as dual energy use systems (DEUS) to provide economic intermediate or peaking duty for the electric utility system, and satisfy thermal loads in the residential, commercial, industrial, and utility sectors. The primary objective was to evaluate the potential applications of dual energy use fuel cell systems by identifying representative generic applications for DEUS fuel cells; assesing the technical and economic factors in each application; devloping and evaluating options for matching or decoupling electric and thermal loads; and quantifying the potential benefits and limitations of DEUS fuel cells. Both the phosphoric acid and molten carbonate fuel cell types were considered. The results indicate that both fuel cell types are economically attractive and technically viable for DEUS use in each of the application sectors. The most attractive applications for building systems include universities and hospitals; for industry, paper and pulp mills; and for utility power plants, air preheating. The economic benefits from these uses would justify increases in fuel cell capital costs of approx. $300/kW. Several other applications also showed favorable results, with increased allowable capital costs of $100--$300/kW. The results also indicatedmore » that the economic benefits arose even if the DEUS power plants operated on economic electric dispatch. This mode also results in significant pertroleum savings due to the approximatly 80% efficiency of DEUS fuel cells.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Mathtech, Inc., Washington, DC (USA)
OSTI Identifier:
6010482
Alternate Identifier(s):
OSTI ID: 6010482
Report Number(s):
EPRI-EM-981-SY(Vol.1)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 20 FOSSIL-FUELED POWER PLANTS; DUAL-PURPOSE POWER PLANTS; FUEL CELL POWER PLANTS; CO-GENERATION; ECONOMICS; ACID ELECTROLYTE FUEL CELLS; CARBONATES; COMMERCIAL SECTOR; ELECTRIC UTILITIES; EVALUATION; HIGH-TEMPERATURE FUEL CELLS; INDUSTRY; MOLTEN SALTS; PHOSPHORIC ACID; RESIDENTIAL SECTOR; USES; CARBON COMPOUNDS; DEUS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FUEL CELLS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; OXYGEN COMPOUNDS; POWER GENERATION; POWER PLANTS; PUBLIC UTILITIES; SALTS; STEAM GENERATION 300504* -- Fuel Cells-- Applications; 200100 -- Fossil-Fueled Power Plants-- Power Plants & Power Generation

Citation Formats

Wakefield, R.A., Limaye, D.R., Karamchetty, S.D.S.R., and Friedman, N.R. Analysis of the application of fuel cells in dual energy use systems. United States: N. p., 1979. Web.
Wakefield, R.A., Limaye, D.R., Karamchetty, S.D.S.R., & Friedman, N.R. Analysis of the application of fuel cells in dual energy use systems. United States.
Wakefield, R.A., Limaye, D.R., Karamchetty, S.D.S.R., and Friedman, N.R. Thu . "Analysis of the application of fuel cells in dual energy use systems". United States.
@article{osti_6010482,
title = {Analysis of the application of fuel cells in dual energy use systems},
author = {Wakefield, R.A. and Limaye, D.R. and Karamchetty, S.D.S.R. and Friedman, N.R.},
abstractNote = {This study was conducted to assess the technical and financial issues asociated with utility-owned, grid-connected, dispersed fuel cells operating as dual energy use systems (DEUS) to provide economic intermediate or peaking duty for the electric utility system, and satisfy thermal loads in the residential, commercial, industrial, and utility sectors. The primary objective was to evaluate the potential applications of dual energy use fuel cell systems by identifying representative generic applications for DEUS fuel cells; assesing the technical and economic factors in each application; devloping and evaluating options for matching or decoupling electric and thermal loads; and quantifying the potential benefits and limitations of DEUS fuel cells. Both the phosphoric acid and molten carbonate fuel cell types were considered. The results indicate that both fuel cell types are economically attractive and technically viable for DEUS use in each of the application sectors. The most attractive applications for building systems include universities and hospitals; for industry, paper and pulp mills; and for utility power plants, air preheating. The economic benefits from these uses would justify increases in fuel cell capital costs of approx. $300/kW. Several other applications also showed favorable results, with increased allowable capital costs of $100--$300/kW. The results also indicated that the economic benefits arose even if the DEUS power plants operated on economic electric dispatch. This mode also results in significant pertroleum savings due to the approximatly 80% efficiency of DEUS fuel cells.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}

Technical Report:
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