Development of an instrument for measuring the concentration of gases in a two-component mixture

Ramamurthy, S and Murugesan, Y and Geetha, R (1981) Development of an instrument for measuring the concentration of gases in a two-component mixture. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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Abstract

A novel method was developed to measure the concentration of13; gases in a two component mixture, the concentration of individual gas in a mixture of gases was estimated indirectly by a theoretical method from the measured velocity of sound. The velocity of sound was estimated by measuring the wave length of the standing wave produced in a column of the medium for a given excitation frequency or13; vice-versa.to an accuracy better than 0.2 percent13; simplicity of the instrument were one order higher than the commercially available methods concentration continuously during experiment in the closed circuit test facility for testing centrifugal compressors. Prom measured velocity the concentration was predicted to an accuracy. The accuracy and simplicity of the instrument were one order higher than the commercially available methods. This technique was developed to monitor the Freon concentration continuously during experiment in the closed circuit test facility for testing centrifugal compressors.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Velocity of sound;Excitation frequency;Centrifugal compressors
Subjects: AERONAUTICS > Aircraft Propulsion and Power
Depositing User: M/S ICAST NAL
Date Deposited: 01 Dec 2006
Last Modified: 24 May 2010 04:23
URI: http://nal-ir.nal.res.in/id/eprint/3574

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