Multipoint Gas Articles & Analysis
4 articles found
TD mass flowmeters measure the heat convected into the boundary layer of the gas flowing over the surface of a heated velocity sensor immersed in the flow. Since it is the molecules of the gas, which bear its mass, that carry away the heat, TD mass flowmeters directly measure mass flowrate. ...
Introduction This paper describes a newly developed microprocessor-based thermal dispersion mass flow meter that uses four temperature sensing elements in its flow sensor instead of the traditional two elements and automatically manages changes in gas selection, gas temperature, gas pressure, and outside temperature. ...
Since it is the molecules of the gas that bear its mass and carry away the heat, thermal dispersion mass flowmeters directly measure mass flowrate. Typical gases monitored include air, methane, natural gas, carbon dioxide, nitrogen, oxygen, argon, helium, hydrogen, propane, and stack gases. ...
This unique new mass flow meter automatically manages changes in gas selection, gas temperature, gas pressure, and outside temperature. ...