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  • 1
    facet.materialart.
    Unknown
    Device and method for frictionally testing materials for ignitability (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Test apparatus for determining ignition characteristics of various metal in oxidizer environments simulating operating conditions for materials is invented. The test apparatus has a chamber through which the oxidizing agent flows, and means for mounting a stationary test sample therein, a powered, rotating shaft in the chamber rigidly mounts a second test sample. The shaft is axially movable to bring the samples into frictional engagement and heated to the ignition point. Instrumentation connected to the apparatus provides for observation of temperatures, pressures, loads on and speeds of the rotating shaft, and torques whereby components of stressed oxygen systems can be selected which will avoid accidental fires under working conditions.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Sooting and disruption in spherically symmetrical combustion of decane droplets in air (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The paper presents the results of experiments on the burning of individual 1-2 mm decane droplets in air at room temperature and atmospheric pressure. The NASA Lewis 2.2 s drop tower was used as well as a newly designed droplet-combustion apparatus that promotes nearly spherically symmetrical combustion. Unanticipated disruptions related to sooting behavior were encountered.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: IAF PAPER 87-403
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Interactions Between Gaseous Electrical Discharges and Single Liquid Droplets (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Theoretical estimates and experimental measurements of the effects of sparks on ordered droplet motion are reported for 1-mm-diameter water and hydrocarbon droplets positioned 0.5 mm from the axis of electrodes are reported. The discussion focuses primarily on two-electrode, surge-type spark breakdowns with quasi-steady electric fields applied. Multiple electrode pairs and alternating electric fields and their effects on ordered droplet motion are also briefly discussed.
    Keywords: INORGANIC AND PHYSICAL CHEMISTRY
    Type: E-8372 , Combustion and Flame (ISSN 0010-2180); 74; 233-254
    Format: text
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    NASA TECHNICAL REPORTS
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