Temperature Measurement of Premixed Fuel-Air Mixture by an Infrared Radiation Pyrometer : 3rd Report, Influence of the Mixture Composition and Pressure

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説明

The temperature of a premixed gas during the compression stroke in a rapid compression machine and an engine may be measured by using infrared radiation. The infrared radiation pyrometer mentioned in this work employs the ratio of the absorptivity to the emissivity of water vapor at 2.7μ band. The spectrum at 2.7μ band is affected by the presence of CO2 as well as the water vapor density. Besides, the dry air which is inactive in the infrared region may change the spectrum. Therefore, the influences of the change of the spectrum on the pyrometer reading were checked under the following conditions ; (1) variation of water vapor density, (2) variation of CO2 density, (3) mixture of the two gases and (4) pressurization by dry air. No influence upon the measured temperature was perceived in the experiment under all these conditions.

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  • Bulletin of JSME

    Bulletin of JSME 19 (132), 684-689, 1976

    一般社団法人 日本機械学会

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