Abstract
This paper describes the characteristics of ring‐shaped electrostatic pulverised fuel meters and their applications. At the University of Teesside, UK, electrostatic technique has been used to measure pulverised fuel flow concentration, velocity and mass flow rate under lean phase condition. The mathematic model has been developed to express the relationship between the root mean square (rms) value of meter’s voltage output and solids concentration and mass flow rate. The effects of solids velocity and particle size on measurements have also been reflected in the model. The model also presents the sensitivity variations over cross the sectional area of meter and along the pipe axis. The paper also introduces the research carried out in the Southeast University in China, where the technique has been extended to measure dense phase flow of pulverised coal, which is common in gasification and blast furnaces.
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