Oxidation of Low Calorific Value Gases-Applying Optimization Techniques to Combustor Design

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The design of an optimal air-staged combustor for the oxidation of a low calorific value gas mixture is presented. The focus is on the residual fuel emitted from the anode of a molten carbonate fuel cell. Both experimental and numerical results are presented. The simplified numerical model considers a series of plug-flow-reactor sections, with the possible addition of a perfectly-stirred reactor. The parameter used for optimization, Z, is the sum of fuel-component molar flow rates leaving a particular combustor section. An optimized air injection profile is one that minimizes Z for a given combustor length and inlet condition. Since a ... continued below

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257 Kilobytes pages

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Gemmen, Randall S. November 1, 1999.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 14 times . More information about this report can be viewed below.

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Description

The design of an optimal air-staged combustor for the oxidation of a low calorific value gas mixture is presented. The focus is on the residual fuel emitted from the anode of a molten carbonate fuel cell. Both experimental and numerical results are presented. The simplified numerical model considers a series of plug-flow-reactor sections, with the possible addition of a perfectly-stirred reactor. The parameter used for optimization, Z, is the sum of fuel-component molar flow rates leaving a particular combustor section. An optimized air injection profile is one that minimizes Z for a given combustor length and inlet condition. Since a mathematical proof describing the significance of global interactions remains lacking; the numerical model employs both a ''Local'' optimization procedure and a ''Global'' optimization procedure. The sensitivity of Z to variations in the air injection profile and inlet temperature is also examined. The results show that oxidation of the anode exhaust gas is possible with low pollutant emissions.

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257 Kilobytes pages

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OSTI as DE00015171

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  • Other Information: PBD: 1 Nov 1999

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  • Report No.: DOE/NETL-2000/1107
  • Grant Number: n/a
  • DOI: 10.2172/15171 | External Link
  • Office of Scientific & Technical Information Report Number: 15171
  • Archival Resource Key: ark:/67531/metadc621151

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  • November 1, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 15, 2016, 1:59 p.m.

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Gemmen, Randall S. Oxidation of Low Calorific Value Gases-Applying Optimization Techniques to Combustor Design, report, November 1, 1999; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc621151/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.