MEASURING SURFACE TEMPERATURES OF DIFFERENT TYPES OF FLY ASH SAMPLES USING A CCD CAMERA
文献类型：期刊论文
| 作者 | Liu, Huawei1; Zhu, Runru2 ; Wang, Xin3; Li, Gengda3; Cui, Qingru3; Xu, Chao1; Huang, Yun2
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| 刊名 | THERMAL SCIENCE
 |
| 出版日期 | 2022 |
| 卷号 | 26期号:2页码:1277-1288 |
| 关键词 | fly ash surface temperature emissivity two-color method |
| ISSN号 | 0354-9836 |
| DOI | 10.2298/TSCI200620191L |
| 英文摘要 | In this work, an optical emission-based two-color method was experimentally investigated for the measurement of surface temperatures of different types of fly ash samples using a CCD camera. A heating system consisting of a Hencken flatflame burner, a narrow piece of stainless steel wire mesh to separate the flame and the ash samples to be studied, and a thermocouple to record the temperature, was used to heat fly ash samples. A color camera equipped with a tri-band filter was used to capture radiation images. Fly ash samples collected from three kinds of coal-fired boilers were heated and imaged at different temperatures. The chemical compositions, elements, and particle size distributions were analyzed. The emissivity ratios of the wavelengths corresponding to the R and G optical channels and permitted by the tri-band filter were experimentally determined. A two-color method was subsequently used to calculate the average surface temperatures with relative errors within f2% in the experiments, and an uncertainty analysis was conducted. Surface temperature distributions were also calculated and presented. The results demonstrate that the emission-based two-color method can be used to determine reliable average surface temperatures and surface temperature distributions when the radiation emitted from the ash samples is obviously greater than the ambient light. The results also show that the method has a lower limit of temperature measurement, which will lessen with the use of larger apertures and a higher radiation capacity of the ash samples to be studied. |
| WOS关键词 | PARTICULATE MATTER ; COAL COMBUSTION ; DEPOSITION ; THERMOCOUPLES ; DISTRIBUTIONS ; DIAGNOSTICS ; PREDICTION ; PARTICLE ; FURNACE ; SOOT |
| 资助项目 | National Natural Science Foundation of China[51827808] ; Thirteenth Five-Year National Key R&D Program of China[2018YFC1903000] ; China Energy Science and Technology Project[GJNY-18-27] ; Fundamental Research Funds for the Central Universities[2018ZD03] |
| WOS研究方向 | Thermodynamics |
| 语种 | 英语 |
| WOS记录号 | WOS:000791221600004 |
| 出版者 | VINCA INST NUCLEAR SCI |
| 资助机构 | National Natural Science Foundation of China ; Thirteenth Five-Year National Key R&D Program of China ; China Energy Science and Technology Project ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53050]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhu, Runru |
| 作者单位 | 1.North China Elect Power Univ, Sch Energy Power & Mech Engn, Key Lab Condit Monitoring & Control Power Equipme, Minist Educ China, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China 3.Guodian New Energy Technol Res Inst Co Ltd, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Huawei,Zhu, Runru,Wang, Xin,et al. MEASURING SURFACE TEMPERATURES OF DIFFERENT TYPES OF FLY ASH SAMPLES USING A CCD CAMERA[J]. THERMAL SCIENCE,2022,26(2):1277-1288. |
| APA | Liu, Huawei.,Zhu, Runru.,Wang, Xin.,Li, Gengda.,Cui, Qingru.,...&Huang, Yun.(2022).MEASURING SURFACE TEMPERATURES OF DIFFERENT TYPES OF FLY ASH SAMPLES USING A CCD CAMERA.THERMAL SCIENCE,26(2),1277-1288. |
| MLA | Liu, Huawei,et al."MEASURING SURFACE TEMPERATURES OF DIFFERENT TYPES OF FLY ASH SAMPLES USING A CCD CAMERA".THERMAL SCIENCE 26.2(2022):1277-1288. |
入库方式： OAI收割
来源：过程工程研究所
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