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  • 1
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    Clean fuels from biomass (1974)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The feasibility of converting biomass to portable fuels is studied. Since plants synthesize biomass from H2O and CO2 with the help of solar energy, the conversion methods of pyrolysis, anaerobic fermentation, and hydrogenation are considered. Cost reduction methods and cost effectiveness are emphasized.
    Keywords: AUXILIARY SYSTEMS
    Type: NASA-TM-X-71538 , E-7945 , Southeastern Seminar on Thermal Sci.; Apr 11, 1974 - Apr 12, 1974; New Orleans
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    A visual study of radial inward choked flow of liquid nitrogen (1973)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A visual study of the radial inward choked flow of liquid nitrogen was conducted. Data and high speed moving pictures were obtained. The study indicated the following: (1) steady radial inward choked flow seems equivalent to steady choked flow through axisymmetric nozzles, (2) transient choked flows through the radial gap are not uniform and the discharge pattern appears as nonuniform impinging jets, and (3) the critical mass flow rate data for the transient case appear different from those of the steady case.
    Keywords: FLUID MECHANICS
    Type: NASA-TM-X-68283 , E-7605 , Cryog. Eng. Conf; Aug 08, 1973 - Aug 10, 1973; Atlanta,GA; United states
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Effect of contact angle hysteresis on moving liquid film integrity (1972)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A study was made of the formation and breakdown of a water film moving over solid surfaces (teflon, lucite, stainless steel, and copper). The flow rate associated with film formation was found to be higher than the flow rate at which film breakdown occurred. The difference in the flow rates for film formation and film breakdown was attributed to contact angle hysteresis. Analysis and experiment, which are in good agreement, indicated that film formation and film breakdown are functions of the advancing and receding angles, respectively.
    Keywords: FLUID MECHANICS
    Type: NASA-TM-X-68071 , E-6955 , Natl. Meeting of Am. Inst. of Chem. Engr.; Aug 27, 1972 - Aug 30, 1972; Minneapolis
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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