Wastewater treatment digester gas systems, as well as other biogas applications such as landfills, are challenged by wide flow variations, dirty and wet gas, and a potentially explosive gas. Flow rates can vary from low production in start-up phases to much higher flows as the process matures and with seasonal and population changes. These dynamic process variables make accurate and repeatable gas flow measurement a challenge that can be met using thermal dispersion type mass flowmeters.
Courtesy of Martin Engineering
Courtesy of Siemens
