Application of a Transfer Function for Quick Estimation of Gas Flow
Parameters -- Useful Model-Based Approach for Enhance Measurements.
Applications of transfer function to derivation of a high precision
model of tracer flow in a commercial measurement system is presented. A
transfer function concept makes easier development of models of complex
systems and consequently allows for obtaining a model that matches in
the best way a physical system. The method has an additional profit viz.
the same numerical algorithm i.e. inverse Laplace transform can be
employed to solve the model both on the stage of precise model
development (boundary value problem) and to find real model parameters
(inverse boundary value problem). As a result of concept application, a
very precise model of commercial measurement instrument was developed
and, next, it was employed to determination of axial dispersion
coefficients for empty tube and packed bed. Presented method is precise
in wide range of operating conditions and faster comparing to other
methods previously described in literature. The paper shows that
mathematical modelling can be exploited to enhance measurements for a
commercial measurement instrument i.e unlock the full potential of the
commercial measurement system with no equipment design changes. The
method is also a fast alternative to computational fluid dynamics for
high precision calculations.