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Wang Y. Identification of mass transfer resistances in microporous materials using frequency response methods. ADSORPTION 2021. [DOI: 10.1007/s10450-021-00305-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Computer-Aided Nonlinear Frequency Response Method for Investigating the Dynamics of Chemical Engineering Systems. Processes (Basel) 2020. [DOI: 10.3390/pr8111354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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.
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Periodic reactor operation for parameter estimation in catalytic heterogeneous kinetics. Case study for ethylene adsorption on Ni/Al2O3. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2018.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Petkovska M, Nikolić D, Seidel-Morgenstern A. Nonlinear Frequency Response Method for Evaluating Forced Periodic Operations of Chemical Reactors. Isr J Chem 2018. [DOI: 10.1002/ijch.201700132] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Menka Petkovska
- University of Belgrade; Faculty of Technology and Metallurgy; Karnegijeva 4 Belgrade Serbia
| | - Daliborka Nikolić
- University of Belgrade; Institute for Chemistry, Technology and Metallurgy; Belgrade Serbia
| | - Andreas Seidel-Morgenstern
- Max-Planck Institute for Dynamics of Complex Technical Systems; Magdeburg Germany
- Otto-von-Guericke University; Magdeburg Germany
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Brzić D, Petkovska M. Nonlinear Frequency Response measurements of gas adsorption equilibrium and kinetics: New apparatus and experimental verification. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nonlinear frequency response analysis of nonisothermal adsorption controlled by macropore diffusion. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.07.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Brzić D, Petkovska M. A Study of Applicability of Nonlinear Frequency Response Method for Investigation of Gas Adsorption Based on Numerical Experiments. Ind Eng Chem Res 2013. [DOI: 10.1021/ie402269h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Danica Brzić
- University of Belgrade, Faculty of Technology and Metallurgy, Department
of Chemical Engineering, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Menka Petkovska
- University of Belgrade, Faculty of Technology and Metallurgy, Department
of Chemical Engineering, Karnegijeva 4, 11000 Belgrade, Serbia
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