| Influence of Participating Media on the Radiation Thermometry for Surface Temperature Measurement |
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| 引用本文： | Yuying LIU Xinxin ZHANG Department of Thermal Engineering,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing,100083 Department of Thermal Engineering,School of Mechanical Engineering,University of Science and Technology Beijing,Beijing,100083. Influence of Participating Media on the Radiation Thermometry for Surface Temperature Measurement[J]. 热科学学报(英文版), 2005, 14(4): 368-373. DOI: 10.1007/s11630-005-0060-9 |
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| 作者姓名： | Yuying LIU Xinxin ZHANG Department of Thermal Engineering School of Jet Propulsion Beijing University of Aeronautics and Astronautics Beijing 100083 Department of Thermal Engineering School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 |
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| 作者单位： | Yuying LIU Xinxin ZHANG Department of Thermal Engineering，School of Jet Propulsion，Beijing University of Aeronautics and Astronautics，Beijing，100083 Department of Thermal Engineering，School of Mechanical Engineering，University of Science and Technology Beijing，Beijing，100083 |
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| 摘 要： | A temperature measurement model of radiation thermometry for the surface covered by participating media was developed. The model was based on the radiation heat transfer of participating media and principles of radiation pyrometers, and solved by integral formulation of discrete ordinate method on spectral waveband. The influence of water mist on the indicated temperature of Raytek MR1SB one/two color pyrometer was discussed. Mie theory was used to calculate the radiative properties of water mist. In order to verify the model, a laboratory temperature measurement experiment was executed. The result shows that temperature of radiation thermometry is sensitive to the spectral response wavelength of pyrometer, and the simulated temperature of pyrometer agrees well with the experimental measurements on a suitable wavelength. The simulated temperature was lower than the real temperature of surface for one-color pyrometer, and it could be higher or lower than the real one for two-color pyrometer with the influence of participating media.
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| 关 键 词： | 介质 表面温度 测量方法 热量辐射 离散性 |
| 收稿时间： | 2005-06-08 |
Influence of participating media on the radiation thermometry for surface temperature measurement |
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| Yuying Liu,Xinxin Zhang. Influence of participating media on the radiation thermometry for surface temperature measurement[J]. Journal of Thermal Science, 2005, 14(4): 368-373. DOI: 10.1007/s11630-005-0060-9 |
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| Authors: | Yuying Liu Xinxin Zhang |
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| Affiliation: | (1) Department of Thermal Engineering, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, 100083 Beijing;(2) Department of Thermal Engineering, School of Mechanical Engineering, University of Science and Technology Beijing, 100083 Beijing |
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| Abstract: | A temperature measurement model of radiation thermometry for the surface covered by participating media was developed. The model was based on the radiation heat transfer of participating media and principles of radiation pyrometers, and solved by integral formulation of discrete ordinate method on spectral waveband. The influence of water mist on the indicated temperature of Raytek MR1SB one/two color pyrometer was discussed. Mie theory was used to calculate the radiative properties of water mist. In order to verify the model, a laboratory temperature measurement experiment was executed. The result shows that temperature of radiation thermometry is sensitive to the spectral response wavelength of pyrometer, and the simulated temperature of pyrometer agrees well with the experimental measurements on a suitable wavelength. The simulated temperature was lower than the real temperature of surface for one-color pyrometer, and it could be higher or lower than the real one for two-color pyrometer with the influence of participating media. |
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| Keywords: | participating media radiation thermometry surface temperature measurement discrete ordinate method. |
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