ISO 10780

Stationary Source Emissions - Measurement Of Velocity And Volume Flowrate Of Gas Streams In Ducts

The path taken by the gas in the chimney along the chimney per unit time is called the velocity. The average velocity of the gas flow is determined using the Pitot tube to determine the maximum velocity at certain points in the cross section of the pipe.

Measurement method according to ISO 10780 standard;
- Determination of the pipe size at the place where sampling will be done
- Determination of the number and location of the required measuring points in the section where velocity measurement will be made
- Pitot tube placement
- Measurement of the pressure difference at the pressure holes of the Pitot tube
- Determination of the velocity at each sampling point based on the connections based on the pressure difference
- Calculation of the flow rate with the help of average velocity and cross-sectional area.

L-type and S-type pitot tubes can be used to measure flue gas velocity within the scope of the standard. You can contact Nanolab Environmental Analysis Laboratory for Determination of Fixed Source Emissions - Gas Flow Rate and Flow in Chimneys.