Combined cycle phosphoric acid fuel cell electric power system

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By arranging two or more electric power generation cycles in series, combined cycle systems are able to produce electric power more efficiently than conventional single cycle plants. The high fuel to electricity conversion efficiency results in lower plant operating costs, better environmental performance, and in some cases even lower capital costs. Despite these advantages, combined cycle systems for the 1 - 10 megawatt (MW) industrial market are rare. This paper presents a low noise, low (oxides of nitrogen) NOx, combined cycle alternative for the small industrial user. By combining a commercially available phosphoric acid fuel cell (PAFC) with a low-temperature ... continued below

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18 p.

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Mollot, D.J. & Micheli, P.L. December 31, 1995.

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Description

By arranging two or more electric power generation cycles in series, combined cycle systems are able to produce electric power more efficiently than conventional single cycle plants. The high fuel to electricity conversion efficiency results in lower plant operating costs, better environmental performance, and in some cases even lower capital costs. Despite these advantages, combined cycle systems for the 1 - 10 megawatt (MW) industrial market are rare. This paper presents a low noise, low (oxides of nitrogen) NOx, combined cycle alternative for the small industrial user. By combining a commercially available phosphoric acid fuel cell (PAFC) with a low-temperature Rankine cycle (similar to those used in geothermal applications), electric conversion efficiencies between 45 and 47 percent are predicted. While the simple cycle PAFC is competitive on a cost of energy basis with gas turbines and diesel generators in the 1 to 2 MW market, the combined cycle PAFC is competitive, on a cost of energy basis, with simple cycle diesel generators in the 4 to 25 MW market. In addition, the efficiency and low-temperature operation of the combined cycle PAFC results in a significant reduction in carbon dioxide emissions with NO{sub x} concentration on the order of 1 parts per million (per weight) (ppmw).

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18 p.

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OSTI as DE96004799

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  • Power-Gen America `95: power generation conference, Anaheim, CA (United States), 5-7 Dec 1995

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  • Other: DE96004799
  • Report No.: DOE/METC/C--96/7218
  • Report No.: CONF-951208--1
  • Office of Scientific & Technical Information Report Number: 194925
  • Archival Resource Key: ark:/67531/metadc668902

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Nov. 19, 2015, 4:03 p.m.

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Mollot, D.J. & Micheli, P.L. Combined cycle phosphoric acid fuel cell electric power system, article, December 31, 1995; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc668902/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.