Coaxial Thermocouples for Heat Transfer Measurements in Long-Duration High Enthalpy Flows
文献类型：期刊论文
| 作者 | Zhang SZ(张仕忠)2; Wang Q(汪球)2 ; Li JP(李进平)2; Zhang XY(张晓源)2; Chen H(陈宏)1,2
|
| 刊名 | SENSORS
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 20期号:18页码:18 |
| 关键词 | heat transfer measurement coaxial thermocouple long-duration semi-infinite high enthalpy |
| DOI | 10.3390/s20185254 |
| 通讯作者 | Li, Jinping(lijinping@imech.ac.cn) |
| 英文摘要 | Coaxial thermocouples have the advantages of fast response and good durability. They are widely used for heat transfer measurements in transient facilities, and researchers have also considered their use for long-duration heat transfer measurements. However, the model thickness, transverse heat transfer, and changes in the physical parameters of the materials with increasing temperature influence the accuracy of heat transfer measurements. A numerical analysis of coaxial thermocouples is conducted to determine the above influences on the measurement deviation. The minimum deviation is obtained if the thermal effusivity of chromel that changes with the surface temperature is used to derive the heat flux from the surface temperature. The deviation of the heat flux is less than 5.5% when the Fourier number is smaller than 0.255 and 10% when the Fourier number is smaller than 0.520. The results provide guidance for the design of test models and coaxial thermocouples in long-duration heat transfer measurements. The numerical calculation results are verified by a laser radiation heating experiment, and heat transfer measurements using coaxial thermocouples in an arc tunnel with a test time of several seconds are performed. |
| 分类号 | 二类/Q1 |
| WOS关键词 | THERMAL PRODUCT |
| 资助项目 | China Scholarship Council ; National Natural Science Foundation of China[11402275] ; National Natural Science Foundation of China[11472280] |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000581980800001 |
| 资助机构 | China Scholarship Council ; National Natural Science Foundation of China |
| 其他责任者 | Li, Jinping |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85390]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang SZ,Wang Q,Li JP,et al. Coaxial Thermocouples for Heat Transfer Measurements in Long-Duration High Enthalpy Flows[J]. SENSORS,2020,20(18):18. |
| APA | 张仕忠,汪球,李进平,张晓源,&陈宏.(2020).Coaxial Thermocouples for Heat Transfer Measurements in Long-Duration High Enthalpy Flows.SENSORS,20(18),18. |
| MLA | 张仕忠,et al."Coaxial Thermocouples for Heat Transfer Measurements in Long-Duration High Enthalpy Flows".SENSORS 20.18(2020):18. |
入库方式： OAI收割
来源：力学研究所
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