Experimental Study On The Measurement Of The Total Heat Flow Of Hot Equipment By Two IR Systems

Zhang Wei; Gao Kuiming; Zhao Ying

doi:10.1117/12.953403

21 March 1989 Experimental Study On The Measurement Of The Total Heat Flow Of Hot Equipment By Two IR Systems

Zhang Wei, Gao Kuiming, Zhao Ying

Proceedings Volume 1094, Thermosense XI: Intl Conf on Thermal Infrared Sensing for Diagnostics and Control; (1989) https://doi.org/10.1117/12.953403
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

A method and its theory of measuring the total heat flow of hot equipment by two IR systems are set forth in this paper. One Of the IR systems includes a pyrometer with a hemispherical reflector and the other includes a pyrometer with a hemispherical absorber. These two IR systems are used to measure the surface temperature and emissivity of the hot equipment. Given the temperature of the relatively cold background and the height of the measurement point on the equipment surface, the total heat flow can be figured out easily. The measurement uncertainty of the method is less than 5% if the surface temperature and the emissivity of the hot equipment are greater than 200°C and 0.7 respectively.

Citation Download Citation

Zhang Wei, Gao Kuiming, and Zhao Ying "Experimental Study On The Measurement Of The Total Heat Flow Of Hot Equipment By Two IR Systems", Proc. SPIE 1094, Thermosense XI: Intl Conf on Thermal Infrared Sensing for Diagnostics and Control, (21 March 1989); https://doi.org/10.1117/12.953403

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KEYWORDS

Reflectors

Temperature metrology

Pyrometry

Infrared imaging

Reflectivity

Convection

Calibration

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