Example
Combined with methane concentration, it helps calculate how much CH₄ enters treatment.
The catch
Volume measurements need stated pressure and temperature conditions.
Related terms
Methane, Anaerobic decomposition, Anaerobic digestion, Biogas, Biomethane, Composting
In more depth
Gas flow rate, explained.
Gas flow rate is the quantity that turns a methane percentage into tonnes, so any error in the meter passes straight into the climate claim. Capture sites usually measure it continuously at the main header, before the gas reaches a flare or engine, and total the readings for each accounting period.
Several things distort the figure. A meter can drift between calibration checks. Flow changes with barometric pressure and with how hard the blowers draw on the well field. Gaps in the record need a stated rule, and a conservative rule assumes nothing was destroyed while equipment was down. Read flow data and operating uptime together for that reason. Treat a blower's rated capacity as a ceiling. Only metered flow belongs in a reported result.