Methodology for spectral emissivity measurement by means of single color pyrometer |
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| Affiliation: | 1. CIRA Italian Aerospace Research Centre, Via Maiorise, 81043 Capua, Italy;2. Dipartimento di Ingegneria Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio, 80, 80125 Napoli, Italy;1. Institute of Clinical Physiology, National Council of Research, Pisa, Italy;2. Fondazione G. Monasterio CNR – Regione Toscana, Pisa, Italy;3. Department of Information Engineering, University of Pisa, Pisa, Italy;4. Paramed s.r.l, Genoa, Italy;1. School of Energy, Power and Mechanical Engineering, North China Electric Power University, Changping District, Beijing 102206, China;2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;1. CEA Cadarache, IRFM, F-13108 Saint-Paul-lez-Durance, France;2. ITER Organization, 13108 Saint-Paul-lez-Durance, France;1. Department of Physics, Faculty of Sciences, Universidad Nacional Autonoma de Mexico, Mexico, D.F. 04510, Mexico;2. Department of Neuroimage, Instituto Nacional de Neurologia y Neurocirugia MVS, Mexico, D.F. 14269, Mexico;3. Department of Basic Science, Universidad Autonoma Metropolitana Azcapotzalco, Mexico, D.F. 02000, Mexico;4. Department of Electrical Engineering, Universidad Autonoma Metropolitana Iztapalapa, Mexico, D.F. 09340, Mexico |
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| Abstract: | The application of non-intrusive optical devices, such as infrared pyrometers able to measure the temperature of surfaces, makes possible the evaluation of emissivity curve of the tested materials at different temperature values. In this paper the authors propose a methodology for the spectral emissivity measurement by means of a single color pyrometer providing a semi-empirical formula, obtained experimentally at CIRA’s laboratory. The semi-empirical formula allows to know the actual emissivity value of the sample’s surface for whatever emissivity value set up on the pyrometer. The agreement between the experimental emissivity and the emissivity predicted by semi-empirical formula was verified. |
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| Keywords: | Emissivity CFD Temperature measurement Single color pyrometer Semi-empirical formula |
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