Relations between pneumatic parameters of ideal gas in a column with uniform permeability |
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Authors: | L M Blumberg |
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Institution: | (1) Hewlett-Packard Co., 2850 Centerville Road, 19808 Wilmington, DE, USA |
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Abstract: | Summary This report was conceived as a source for the relations between five pneumatic parameters of carrier gas — inlet and outlet
pressure, inlet and outlet velocity, and average velocity. Any pair of these parameters can be independent while the remaining
three can be expressed as functions of the independent pair. As the total number of the independent pairs is ten, thirty different
functions describing relations between arbitrary independent pairs and dependent parameters can be identified. All thirty
were derived below together with the complete set of bounds for variations of independent parameters. To derive some relations,
a third order rational equation had to be solved. Some properties of that solution are discussed. A simple case of vacuum
operations with zero outlet pressure has also been considered. |
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Keywords: | Gas chromatography Average velocity of carrier gas Compressibility of carrier gas Pneumatic parameters of carrier gas |
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