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Multiscale Analysis to Determine the Sensitive Zones for Temperature Sensor Location in Tubular Reactors
Author(s) -
MoguelCastañeda Jazael G.,
HernandezAyala Juan L.,
GomezRodriguez Rafael,
BastidasOyanedel JuanRodrigo,
HernandezMartinez Eliseo
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000053
Subject(s) - dimensionless quantity , cascade , sensitivity (control systems) , weighting , position (finance) , control theory (sociology) , temperature control , controller (irrigation) , homogeneous , dispersion (optics) , materials science , mechanics , nuclear engineering , chemistry , thermodynamics , chromatography , engineering , physics , computer science , control (management) , agronomy , optics , finance , electronic engineering , artificial intelligence , biology , acoustics , economics
The sensitivity of benchmark tubular reactors subject to temperature and concentration of external perturbations was investigated. Two case studies were evaluated, a pseudo‐homogeneous axial dispersion dimensionless tubular reactor and a heterogeneous tubular reactor to produce maleic anhydride. For the dimensionless reactor model, the highest sensitivities in the reactor were located at the center and at the outlet for temperature and concentration disturbances, respectively, while for the heterogeneous reactor model the sensitivity does not undergo significant changes with feed disturbances. When variations in the most sensitive position occur, a cascade controller can be improved using multiple temperature sensors. The evaluation on weighting assignment of the temperature measurements for the cascade control scheme is also described.