Full-scale demonstration of low-NO{sub x} cell{trademark} burner retrofit. Final report

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The objective of the Low-NO{sub x} Cell{trademark}Burner (LNCB{trademark}) demonstration is to evaluate the applicability of this technology for reducing NO{sub x} emissions in full-scale, cell burner-equipped boilers. More precisely, the program objectives are to: (1) Achieve at least a 50% reduction in NO{sub x} emissions. (2) Reduce NO{sub x} with no degradation to boiler performance or life of the unit. (3) Demonstrate a technically and economically feasible retrofit technology. Cell burner equipped boilers comprise 13% of the Pre-New Source Performance Standards (NSPS) coal-fired generating capacity. This relates to 34 operating units generating 23,639 MWe, 29 of which are opposed wall ... continued below

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110 p.

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Eckhart, C.F.; Kitto, J.B. & Kleisley, R.J. July 1, 1994.

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Description

The objective of the Low-NO{sub x} Cell{trademark}Burner (LNCB{trademark}) demonstration is to evaluate the applicability of this technology for reducing NO{sub x} emissions in full-scale, cell burner-equipped boilers. More precisely, the program objectives are to: (1) Achieve at least a 50% reduction in NO{sub x} emissions. (2) Reduce NO{sub x} with no degradation to boiler performance or life of the unit. (3) Demonstrate a technically and economically feasible retrofit technology. Cell burner equipped boilers comprise 13% of the Pre-New Source Performance Standards (NSPS) coal-fired generating capacity. This relates to 34 operating units generating 23,639 MWe, 29 of which are opposed wall fired with two rows of two-nozzle cell burners on each wall. The host site was one of these 29. Dayton Power & Light offered use of J.M. Stuart Station`s Unit No. 4 as the host site. It was equipped with 24, two-nozzle cell burners arranged in an opposed wall configuration. To reduce NO{sub x} emissions, the LNCB{trademark} has been designed to delay the mixing of the fuel and combustion air. The delayed mixing, or staged combustion, reduces the high temperatures normally generated in the flame of a standard cell burner. A key design criterion for the burner was accomplishing delayed fuel-air mixing with no pressure part modifications to facilitate a {open_quotes}plug-in{close_quotes} design. The plug-in design reduces material costs and outage time required to complete the retrofit, compared to installing conventional, internally staged low-NO{sub x} burners.

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110 p.

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OSTI as DE96003766

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  • Other Information: PBD: Jul 1994

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  • Other: DE96003766
  • Report No.: DOE/PC/90545--2
  • Grant Number: FC22-91PC90545
  • DOI: 10.2172/167201 | External Link
  • Office of Scientific & Technical Information Report Number: 167201
  • Archival Resource Key: ark:/67531/metadc623309

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  • July 1, 1994

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Dec. 7, 2015, 4:26 p.m.

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Eckhart, C.F.; Kitto, J.B. & Kleisley, R.J. Full-scale demonstration of low-NO{sub x} cell{trademark} burner retrofit. Final report, report, July 1, 1994; United States. (digital.library.unt.edu/ark:/67531/metadc623309/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.