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Acoustic chemometrics for fluid flow quantifications—II: a small constriction will go a long way
Author(s) -
Esbensen Kim H.,
Hope Bjørn,
Lied Thorbjørn T.,
Halstensen Maths,
Gravermoen Tore,
Sundberg Kenneth
Publication year - 1999
Publication title -
journal of chemometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.47
H-Index - 92
eISSN - 1099-128X
pISSN - 0886-9383
DOI - 10.1002/(sici)1099-128x(199905/08)13:3/4<209::aid-cem553>3.0.co;2-5
Subject(s) - chemometrics , analyte , volumetric flow rate , fluid dynamics , body orifice , calibration , chemistry , acoustics , mechanics , chromatography , mechanical engineering , engineering , mathematics , physics , statistics
A new approach for non‐invasive quantitative measurement of volume flow rate, multicomponent mixture concentrations as well as density and other physico‐chemical intensive parameters of liquid mixtures flowing in pipelines is presented, based on novel application extensions of the well‐known orifice plate principle (extensively used for flow measurement in pipes). By deliberately transgressing the conventional usage limits, the orifice plate configuration may now also be used for a range of new measurement types, all based on acoustic sensor technology. R&D has been carried out since 1987 by Sensorteknikk A/S and since 1994 in collaboration with ACRG. The acoustic chemometrics concept is characterized by easy ‘clamp‐on’ deployment of acoustic sensors (primarily accelerometers), followed by an essential, integrated signal analysis/multivariate calibration data modelling, well known from chemometrics. The signal analysis step in this endeavour is often critical although rarely outside conventional electrical engineering scopes. We present three fluid/fluid or fluid/solid mixture application type cases: (1) trace oil‐in‐water determination (representing one‐analyte systems ); (2) jet‐fuel/glycol mixture determination (representing two‐analyte systems ); (3) paper‐pulp constituent(s) determination (representing analyte–interferents systems ). We also describe extension studies of these first quantitative acoustic chemometrics forays, e.g. for alternative measurement of (conventional) flow velocities of both fluid/fluid and fluid/solid (slurries) systems (average volume flow rate of heterogeneous multiphase systems), for flow regime characterization and for measurement of the effective in‐line density of (fluid/fluid and fluid/solid) mixtures. There would appear to be a vast potential for technological and industrial applications of this new type of acoustic chemometric process and product characterization/monitoring. Copyright © 1999 John Wiley & Sons, Ltd.