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  • 1
    Publication Date: 2019-08-28
    Description: A fluid mixer plug has holes formed therethrough such that a remaining portion is closed to fluid flow. The plug's inlet face defines a central circuit region and a ring-shaped region with the ring-shaped region including at least some of the plug's remaining portion so-closed to fluid flow. This remaining portion or closed region at each radius R of the ring shaped region satisfies a radius independent, flow-based relationship. Entry openings are defined in the plug's inlet face in correspondence with the holes. The entry openings define an open flow area at each radius of the ring-shaped region. The open flow area at each such radius satisfies the inverse of the flow-based relationship defining the closed regions of the plug.
    Keywords: Fluid Mechanics and Thermodynamics
    Format: application/pdf
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  • 2
    Publication Date: 2019-08-28
    Description: A method for determining the volume of an incompressible gas in a system including incompressible substances in a zero-gravity environment. The method includes inducing a volumetric displacement within a container and measuring the resulting pressure change. From this data, the liquid level can be determined.
    Keywords: Physics (General)
    Format: application/pdf
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  • 3
    Publication Date: 2019-07-12
    Description: Electrochemical system includes fuel cells that convert high-energy-density chemical propellants to atmospheric gases. System provides cooling, water, and electrical energy. Applicable to terrestrial enclosed environments, laboratories, chemical processing plants, or portable medical facilities.
    Keywords: MATERIALS
    Type: MSC-21404 , NASA Tech Briefs (ISSN 0145-319X); 16; 4; P. 63
    Format: text
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