Abstract

Flowmeters are used in industrial furnace applications for metering– fuel (both liquid and gaseous),– combustion air,– flue gas and– the heat on the water or steam side.Recent years have seen important improvements being made in all application fields through multivariable measurements:– New Coriolis flowmeters provide not only the mass flow, but also various diagnostic parameters such as density and viscosity of oils, thus enabling improvement of combustion, e.g. in support burners.– New ultrasonic flowmeters used in biogas applications analyze methane content helping to determine calorific value in situ.– New vortex flowmeters are able to determine the dryness fraction of steam, helping to improve safety, efficiency and accuracy in measurement.– Devices now are available developed per IEC 61508 in compliance with SIL (safety integrity level) requirements including new verification concepts that provides longer proof test intervals.Applications of the above-mentioned recent developments in a variety of industries will be presented.

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