Selection of locations for environmental gas monitoring stations
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Regarding the location of monitoring points for flue gas emissions from power plants, the standards generally require that \"the locations for measuring particulate matter and flow velocity should preferably be chosen in vertical pipe sections and areas with negative pressure in the flue.\" Why is it necessary to prioritize vertical pipe sections and areas with negative pressure?
To ensure the accuracy of the measurement values. If there are particles, they tend to accumulate in certain areas of the pipeline, resulting in unstable pulsating flow and inaccurate numerical values.