Jie GAO, Honghui XIANG, Senlin WU, et al. Uncertainty analysis of compressor temperature rise efficiency measurement based on thermocouple inversed connection[J]. Journal of Aerospace Power, 2022, 37(8): 1732-1739.
DOI:
Jie GAO, Honghui XIANG, Senlin WU, et al. Uncertainty analysis of compressor temperature rise efficiency measurement based on thermocouple inversed connection[J]. Journal of Aerospace Power, 2022, 37(8): 1732-1739.DOI: 10.13224/j.cnki.jasp.20210276.
Uncertainty analysis of compressor temperature rise efficiency measurement based on thermocouple inversed connection
In view of the problem of evaluating the temperature rise efficiency under low pressure ratio in the aerodynamic performance experiments of axial flow compressor,the uncertainty mathematics analysis models of temperature rise efficiency measured by the conventional method and a method with inversed connection of thermocouple were established respectively,and the uncertainties of temperature rise efficiency measured by two methods were analyzed comparatively with real experimental data of a single stage compressor.The results showed that,compared with conventional method,the uncertainty of temperature rise efficiency with inversed connection of thermocouple was greatly reduced by more than 30%,by eliminating the uncertainty introduced by the cold end temperature measurement of thermocouple and reducing the uncertainty introduced by the inlet temperature measurement.
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