Performance Characteristics of a Capacitive Mass Flowmeter in a Coal-Oil Slurry at the ANL Solid/Liquid Test Facility

摘要

This paper describes the performance of the Argonne National Laboratory (ANL) capacitive flowmeter, a nonintrusive flow instrument with no moving parts, in measuring particle velocity and particle concentration during a series of coal-oil slurry tests at the ANL Solid-Liquid Test Facility (SLTF). The experiment measured mass flow by the capacitive flowmeter in a coal-oil slurry for particle velocities and coal concentrations ranging respectively from 0.4 to 3.7 m/s and 0 to 60 wt % under controlled and reproducible conditions. Measured results, with the capacitive flowmeter located in a vertical pipe run, are compared with the SLTF flow calibration facilities. It is demonstrated that the capacitive flowmeter successfully measured the average slurry density and provided a measure of the slurry velocity, by using the cross-correlation method, for all coal concentrations with several electrode configurations. (ERA citation 09:019657)