Temperature measurement of gas flow with high temperature and speed using thermal video system

Dezhong Zhu; Li Liao; Yuqin Gu

doi:10.1117/12.365766

13 October 1999 Temperature measurement of gas flow with high temperature and speed using thermal video system

Dezhong Zhu, Li Liao, Yuqin Gu

Proceedings Volume 3783, Optical Diagnostics for Fluids/Heat/Combustion and Photomechanics for Solids; (1999) https://doi.org/10.1117/12.365766
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Thermal imaging technique has been used to measure the temperature distribution of gas flow with high temperature and high speed generated in a high temperature wind-tunnel. FIrst, the silicon carbon sheath of thermocouple sensor was considered as a reverential body and its surface temperature was measured using a thermal-video system. The, the real temperature distribution of gas flow was calculated according to the convective heat transfer coefficient between the reverential body and the gas flow. Two ways have been sued to determine the convective heat transfer coefficient, one by calculating based on empirical relation, other by experimental way.

Citation Download Citation

Dezhong Zhu, Li Liao, and Yuqin Gu "Temperature measurement of gas flow with high temperature and speed using thermal video system", Proc. SPIE 3783, Optical Diagnostics for Fluids/Heat/Combustion and Photomechanics for Solids, (13 October 1999); https://doi.org/10.1117/12.365766

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