Abstract Through the establishment of carbon emission continuous online monitoring experimental platform, the continuous online monitoring process of carbon dioxide emission was simulated and analyzed. According to JJF 1059.1-2012 Evaluation and expression of uncertainty in measuirement and JJG 640-2016 Differential pressure flowmeters, the uncertainty evaluation mathematical model of carbon emission measurement results was established, the source of measurement uncertainty was comprehensively analyzed, and the uncertainty evaluation of measurement results was carried out. The results show that the expanded relative uncertainty of the experimental platform for continuous on-line monitoring of carbon emissions is 5.86%, the coverage factor is k=2, and the confidence level is 95%. The uncertainty of the measurement results mainly comes from the system error introduced by the ambient temperature.
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2022, Vol. 43 
