![]() ![]() This paper examines a number of on-line instruments to measure mass flow, coal content or density, and viscosity in a flow system installed in a COM Combustion Test Facility at the Pittsburgh Energy Technology Center (PETC). Atomization characteristics, partly dependent on the fluid viscosity, can be adjusted using on-line viscometers linked to the more ยป fuel preheater. Accurate mass flow measurements, coupled with data on the coal content, can be used to determine the instantaneous Btu input to a burner. Accurate measurement of density or coal content in COM is needed to monitor the reproducibility of preparation processes. ![]() Availability of this instrumentation can enhance the operation of control systems for COM preparation and combustion. ![]() Results of recent tests on coal-oil mixtures (COM) indicate that on-line continuous monitoring of key parameters - mass flow, coal content, and viscosity - is possible. ![]()
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