Development and testing of a high efficiency advanced coal combustor: Phase 3 industrial boiler retrofit. Quarterly technical progress report No. 11, April 1, 1994--June 30, 1994

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The objective of this project is to retrofit the previously developed High Efficiency Advanced Coal Combustor (HEACC) to a standard gas/oil designed industrial boiler to assess the technical and economic viability of displacing premium fuels with microfine coal. This report documents the technical aspects of this project during the tenth quarter of the program. The four hundred hours ``Proof-of-Concept System Test`` under Task 3 was completed during this quarter. The primary objectives were to obtain steady state operation consistently on coal only and increase carbon conversion efficiency from {approximately}95% to the project goal of 98%. This was to be obtained ... continued below

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22 p.

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Patel, R.; Borio, R.; Scaroni, A.W.; Miller, B.G. & McGowan, J.G. September 23, 1994.

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Description

The objective of this project is to retrofit the previously developed High Efficiency Advanced Coal Combustor (HEACC) to a standard gas/oil designed industrial boiler to assess the technical and economic viability of displacing premium fuels with microfine coal. This report documents the technical aspects of this project during the tenth quarter of the program. The four hundred hours ``Proof-of-Concept System Test`` under Task 3 was completed during this quarter. The primary objectives were to obtain steady state operation consistently on coal only and increase carbon conversion efficiency from {approximately}95% to the project goal of 98%. This was to be obtained without increasing NO{sub x} emission above the project goal level of 0.6 lbs/MBtu ({approximately}425 ppM). The testing was also designed to show that consistent, reliable operation could be achieved as another prerequisite to the demonstration. The data were gathered and analyzed for both economic and technical analysis prior to committing to the long term demonstration. The Economic Evaluation was completed and work started on commercialization plan. During this reporting period, activities included sample analysis, data reduction and interpretation from all the testing during March and April. Following preliminary conclusions are drawn based on results evaluated: coal handling/preparation system can be designed to meet technical requirements for retrofitting microfine coal combustion; boiler thermal performance met requirement; NO{sub x} Emission can meet target of 0.6 lb/MBtu; combustion efficiencies of 95% could be met on a daily average basis, somewhat below target of 98%; economic playback very sensitive to fuel differential cost, unit size, and annual operating hours; and continuous long term demonstration needed to quantify ash effect and how to best handle.

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22 p.

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OSTI as DE95011927

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  • Other Information: PBD: 23 Sep 1994

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  • Other: DE95011927
  • Report No.: DOE/PC/91160--T5
  • Grant Number: AC22-91PC91160
  • DOI: 10.2172/70166 | External Link
  • Office of Scientific & Technical Information Report Number: 70166
  • Archival Resource Key: ark:/67531/metadc706511

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  • September 23, 1994

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 19, 2015, 8:32 p.m.

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Patel, R.; Borio, R.; Scaroni, A.W.; Miller, B.G. & McGowan, J.G. Development and testing of a high efficiency advanced coal combustor: Phase 3 industrial boiler retrofit. Quarterly technical progress report No. 11, April 1, 1994--June 30, 1994, report, September 23, 1994; United States. (digital.library.unt.edu/ark:/67531/metadc706511/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.