Measurement methods
Residence Time Distribution in Extrusion Processes

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Measurement methods
Residence Time Distribution in Extrusion Processes

Author : Bruno VERGNES

Publication date: April 10, 2025 | Lire en français

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2. Measurement methods

All RTD measurements are based on the detection, via its concentration, of a tracer introduced at the entry of the process. This introduction can take the form of a Dirac pulse (instantaneous) (figure 3 a) or a step change (figure 3 b). Tracer concentration C(t) is measured at the output and the RTD functions are calculated according to:

E(t)=C(t)
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