Variation of pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures

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Description

An investigation was made of the change in the pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures. Pressure limits were measured in cylindrical glass tubes of four different inside diameters at six different oxygen-nitrogen ratios. Under the experimental conditions, flame propagation was found to be impossible in isooctane-oxygen mixtures with oxygen concentrations less than 11 to 12 percent. Critical tube diameters for flame propagation were calculated and the effect of pressure was determined and compared with the effect of pressure on quenching distance. Critical diameters were related to flame speeds for various isooctane-oxygen-nitrogen mixtures.

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20 p. : ill.

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Spakowski, Adolph E. & Belles, Frank E. March 3, 1952.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 55 times . More information about this report can be viewed below.

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  • Main Title: Variation of pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures
  • Series Title: NACA Research Memorandums

Description

An investigation was made of the change in the pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures. Pressure limits were measured in cylindrical glass tubes of four different inside diameters at six different oxygen-nitrogen ratios. Under the experimental conditions, flame propagation was found to be impossible in isooctane-oxygen mixtures with oxygen concentrations less than 11 to 12 percent. Critical tube diameters for flame propagation were calculated and the effect of pressure was determined and compared with the effect of pressure on quenching distance. Critical diameters were related to flame speeds for various isooctane-oxygen-nitrogen mixtures.

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20 p. : ill.

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  • Accession or Local Control No: 93R16291
  • URL: http://hdl.handle.net/2060/19930087001 External Link
  • Report No.: NACA-RM-E52A08
  • Center for AeroSpace Information Number: 19930087001
  • Archival Resource Key: ark:/67531/metadc59146

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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  • March 3, 1952

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

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  • April 2, 2018, 12:10 p.m.

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Spakowski, Adolph E. & Belles, Frank E. Variation of pressure limits of flame propagation with tube diameter for various isooctane-oxygen-nitrogen mixtures, report, March 3, 1952; (digital.library.unt.edu/ark:/67531/metadc59146/: accessed July 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.