Optimized air staged injection for the oxidation of low calorific value gases

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This paper describes a simplified numerical model used for predicting an optimized air staged plug-flow combustor for low calorific value gas mixtures. The parameter used for optimization, Z, is the summed flow rates of fuel components leaving the combustor. An optimized combustor is one of a given length and input mass flux that minimizes Z. Since a mathematical proof describing the importance of global interactions remains lacking, the model employs both a ``local optimization`` procedure and a ``global optimization`` procedure. By exercising and comparing both procedures, the model shows that ``local optimization`` is sufficient to provide an optimized solution. Sensitivity ... continued below

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7 p.

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Gemmen, R.S. December 31, 1996.

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Description

This paper describes a simplified numerical model used for predicting an optimized air staged plug-flow combustor for low calorific value gas mixtures. The parameter used for optimization, Z, is the summed flow rates of fuel components leaving the combustor. An optimized combustor is one of a given length and input mass flux that minimizes Z. Since a mathematical proof describing the importance of global interactions remains lacking, the model employs both a ``local optimization`` procedure and a ``global optimization`` procedure. By exercising and comparing both procedures, the model shows that ``local optimization`` is sufficient to provide an optimized solution. Sensitivity of Z to deviations in air injection profile and inlet temperature is also examined.

Physical Description

7 p.

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OSTI as DE97050525

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  • 1996 Fall technical meeting of the Eastern States Section of the Combustion Institute, Hilton Head, SC (United States), 9-11 Dec 1996

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  • Other: DE97050525
  • Report No.: DOE/METC/C--96/7250
  • Report No.: CONF-961242--1
  • Office of Scientific & Technical Information Report Number: 414265
  • Archival Resource Key: ark:/67531/metadc687475

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 11, 2015, 1:09 p.m.

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Gemmen, R.S. Optimized air staged injection for the oxidation of low calorific value gases, article, December 31, 1996; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc687475/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.