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Title
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A Study of the Theoretical Performance of Gaseous Adsorption Systems
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Date
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1967
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Index Abstract
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Not Available
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Photo Quality
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Not Needed
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Report Number
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AMRL TR 67-198
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Creator
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Madey, Richard
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Charles, Joseph J.
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Corporate Author
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Clarkson College of Technology
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Laboratory
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Aerospace Medical Research Laboratories
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Extent
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102
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Identifier
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AD0667811
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Access Rights
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Distribution of this document is unlimited. It may be released to the Clearinghouse, Department of Commerce, for sale to the general public.
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Distribution Classification
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1
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Contract
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AF 33(615)-5162
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DoD Project
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6373
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DoD Task
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637302
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DTIC Record Exists
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No
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Distribution Change Authority Correspondence
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None
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Distribution Conflict
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No
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Abstract
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This study of the theoretical performance of gaseous adsorption systems is based on an equation for the time-dependent transmission of a gas through an adsorber bed of length, l, and bulk density, rho, and a gas-adsorber system characterized by an isothermal adsorption capacity, K, and a dispersivity, D. For a step-function gaseous input pulse injected into a stream of carrier gas which flows through the adsorber at a superficial flow velocity, u, the time-dependent expression for the transmission is a function only of the dimensionless dispersion number, D/ul, and the dimensionless time measured in units of the inflection time. A weighted least-squares analysis is developed and programmed on a digital computer to determine from an experimental transmission versus time curve the values of the two theoretical parameters (namely, the dispersivity and the adsorptivity) in the transmission equation. The errors in the values of the two theoretical parameters are evaluated also by propagating the errors in the experimental values of the transmission through the normal equations of the least-squares analysis. The Newton-Raphson method is used for obtaining the solution of the two simultaneous normal equations of the least-squares analysis. The theory is used to analyze experimental data on the transmission of carbon dioxide in air through molecular sieve adsorber beds.
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Report Availability
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Full text available
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Date Issued
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1967-12
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Provenance
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RAF Centre of Aviation Medicine
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Type
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report
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Format
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1 online resource
AMRLTR67-198.pdf