Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems
Abstract
The Nonlinear Frequency Response (NFR) method is a useful Process Systems Engineering tool for developing experimental techniques and periodic processes that exploit the system nonlinearity. The basic and most time-consuming step of the NFR method is the derivation of frequency response functions (FRFs). The computer-aided Nonlinear Frequency Response (cNFR) method, presented in this work, uses a software application for automatic derivation of the FRFs, thus making the NFR analysis much simpler, even for systems with complex dynamics. The cNFR application uses an Excel user-friendly interface for defining the model equations and variables, and MATLAB code which performs analytical derivations. As a result, the cNFR application generates MATLAB files containing the derived FRFs in a symbolic and algebraic vector form. In this paper, the software is explained in detail and illustrated through: (1) analysis of periodic operation of an isothermal continuous stirred-tank reactor with a sim...ple reaction mechanism, and (2) experimental identification of electrochemical oxygen reduction reaction.
Keywords:
nonlinear process dynamics / frequency response functions / experimental identification / periodic processes / process intensification / process systems engineeringSource:
Processes, 2020, 8, 11Publisher:
- MDPI, Basel
DOI: 10.3390/pr8111354
ISSN: 2227-9717
WoS: 000593747100001
Scopus: 2-s2.0-85094664492
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Živković, Luka AU - Vidaković-Koch, Tanja AU - Petkovska, Menka PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4437 AB - The Nonlinear Frequency Response (NFR) method is a useful Process Systems Engineering tool for developing experimental techniques and periodic processes that exploit the system nonlinearity. The basic and most time-consuming step of the NFR method is the derivation of frequency response functions (FRFs). The computer-aided Nonlinear Frequency Response (cNFR) method, presented in this work, uses a software application for automatic derivation of the FRFs, thus making the NFR analysis much simpler, even for systems with complex dynamics. The cNFR application uses an Excel user-friendly interface for defining the model equations and variables, and MATLAB code which performs analytical derivations. As a result, the cNFR application generates MATLAB files containing the derived FRFs in a symbolic and algebraic vector form. In this paper, the software is explained in detail and illustrated through: (1) analysis of periodic operation of an isothermal continuous stirred-tank reactor with a simple reaction mechanism, and (2) experimental identification of electrochemical oxygen reduction reaction. PB - MDPI, Basel T2 - Processes T1 - Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems IS - 11 VL - 8 DO - 10.3390/pr8111354 ER -
@article{ author = "Živković, Luka and Vidaković-Koch, Tanja and Petkovska, Menka", year = "2020", abstract = "The Nonlinear Frequency Response (NFR) method is a useful Process Systems Engineering tool for developing experimental techniques and periodic processes that exploit the system nonlinearity. The basic and most time-consuming step of the NFR method is the derivation of frequency response functions (FRFs). The computer-aided Nonlinear Frequency Response (cNFR) method, presented in this work, uses a software application for automatic derivation of the FRFs, thus making the NFR analysis much simpler, even for systems with complex dynamics. The cNFR application uses an Excel user-friendly interface for defining the model equations and variables, and MATLAB code which performs analytical derivations. As a result, the cNFR application generates MATLAB files containing the derived FRFs in a symbolic and algebraic vector form. In this paper, the software is explained in detail and illustrated through: (1) analysis of periodic operation of an isothermal continuous stirred-tank reactor with a simple reaction mechanism, and (2) experimental identification of electrochemical oxygen reduction reaction.", publisher = "MDPI, Basel", journal = "Processes", title = "Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems", number = "11", volume = "8", doi = "10.3390/pr8111354" }
Živković, L., Vidaković-Koch, T.,& Petkovska, M.. (2020). Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems. in Processes MDPI, Basel., 8(11). https://doi.org/10.3390/pr8111354
Živković L, Vidaković-Koch T, Petkovska M. Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems. in Processes. 2020;8(11). doi:10.3390/pr8111354 .
Živković, Luka, Vidaković-Koch, Tanja, Petkovska, Menka, "Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems" in Processes, 8, no. 11 (2020), https://doi.org/10.3390/pr8111354 . .