LOW-TEMPERATURE ASH SINTERING AND STRENGTH DEVELOPMENT

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Description

The objective of the project is to develop fundamental sintering-viscosity relationships for coal-type ash at relatively low temperatures, with the end result being a simplified soot-blowing index for power systems. This involves correlating several important factors which control the ease of deposit removal, including deposit strength, deposit porosity, chemical composition, and temperature. Testing was performed on ashes derived from three coals and two biomass materials along with a standard soda-lime glass. The coals were selected because detailed analyses as well as ash samples were already available. Sintering characteristics of the ashes were to be determined by observation using an HSM ... continued below

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27 pages

Creation Information

Zygarlicke, Christopher J.; McCollor, Donald P. & Kay, John P. October 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. More information about this report can be viewed below.

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  • University of North Dakota
    Publisher Info: University of North Dakota (United States)
    Place of Publication: [Grand Forks, North Dakota]

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Description

The objective of the project is to develop fundamental sintering-viscosity relationships for coal-type ash at relatively low temperatures, with the end result being a simplified soot-blowing index for power systems. This involves correlating several important factors which control the ease of deposit removal, including deposit strength, deposit porosity, chemical composition, and temperature. Testing was performed on ashes derived from three coals and two biomass materials along with a standard soda-lime glass. The coals were selected because detailed analyses as well as ash samples were already available. Sintering characteristics of the ashes were to be determined by observation using an HSM and video recording system, with a stainless steel microscope stage chamber constructed to allow the use of corrosive gas atmospheres. The measurements would allow calculation of the viscosity of liquid phases as the sintering progressed, using the Frenkel and other sintering models. The sintering behavior and viscosity would be correlated with ash mineralogy and chemistry and information on bench-scale deposit strength and porosity to develop an initial relationship to predict deposit removability.

Physical Description

27 pages

Notes

OSTI as DE00824981

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  • Other Information: PBD: 1 Oct 1999

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  • Report No.: NONE
  • Grant Number: FC26-98FT40320
  • DOI: 10.2172/824981 | External Link
  • Office of Scientific & Technical Information Report Number: 824981
  • Archival Resource Key: ark:/67531/metadc785077

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • October 1, 1999

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • Feb. 20, 2017, 12:45 p.m.

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Zygarlicke, Christopher J.; McCollor, Donald P. & Kay, John P. LOW-TEMPERATURE ASH SINTERING AND STRENGTH DEVELOPMENT, report, October 1, 1999; [Grand Forks, North Dakota]. (digital.library.unt.edu/ark:/67531/metadc785077/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.