CORIOLIS MASS FLOW METER WITH DIRECT VISCOSITY MEASUREMENT

Michael Fuchs, Wolfgang Drahm, Christian Matt, Alfred Wenger
Abstract:
Coriolis mass flowmeters are widely used in industrial flow measurement. Mass flow is measured directly with very high accuracy (± 0.1% for liquids). These instruments are real multivariable meters, because all meters include direct temperature and density measurements as well. From theses primary measured parameters, , even further variables can be derived; e.g. concentration measurement based on density. The trend in industry shows an increased need for such multivariable instruments, which is due to increased global competition and, thus, requires better process efficiency and stricter quality control. Improving quality and process enables manufacturer to save costs by reducing production time and wasted material. Now, additionally to mass flow, density and temperature measurements, also direct viscosity measurements are successfully integrated into Promass 83 I, which is a single tube Coriolis mass flowmeter with a straight tube. Viscosity is a crucial process variable indicating important fluid properties like consistency, pourability and concentration, which can define the quality of a product. Viscosity can also be an important indicator for problems within a process and, thus, allows the manufacturers to adjust process parameters immediately to prevent a whole batch to be wasted. With these in-line measurements, no time is lost for separate laboratory viscosity measurement.
This paper explains the working principle of the new additional viscosity measurement and demonstrates its opportunities.
Download:
IMEKO-TC9-2003-051.pdf
DOI:
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Event details
IMEKO TC:
TC9
Event name:
FLOMEKO 2003
Title:
11th Conference on Flow Measurement
Place:
Groningen, NETHERLANDS
Time:
12 May 2003 - 14 May 2003