The RTD Measurement on a Submerged Bio-Reactor using a Radioisotope Tracer and the RTD Analysis

초록

This paper presents a residence time distribution (RTD) measurement method usinga radioisotope tracer and the estimation method of RTD model parameters to analyze a sub-merged bio-reactor. The mathematical RTD models behavior and the existence of stagnant regions in the reactor. Knowing the parameters of the RTD model is important for understanding the mixing characteristics of a reactor. The radioiso-tope tracer experiment was carried out by injecting a radioisotope tracer as a pulse into the inlet of the reactor and recording the change of its concentration at the outlet of the reactor to obtain the experimental RTD response. The parameter estimation was performed by the Levenberg-RTD model sugested by Adler-Hovorka with very low deviations. The estimation procedure is shown to lead to accurate estimation of the RTD parameters and to a good agreement between experimental and simulated response.

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