Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate
Abstract
Periodic operations of a non isothermal CSTR with n-Lh order reaction, subject to a single input modulation, is analysed using the nonlinear frequency response (NFR) method, introduced in our previous publications. The method is based on deriving the asymmetrical second order frequency response function (FRE) and analysing its sign. In Part I of this paper, periodic operation with modulation of the inlet concentration or flow rate of the reaction stream is analysed. As a result, conditions regarding the reaction order, process parameters and frequency of the input modulation are identified that need to be fulfilled in order to achieve process improvement through the periodic operation compared to conventional steady state operation. The method is applied for a numerical example from literature and the results obtained by the NFR method are compared with the results of numerical simulation. Good agreement is obtained, except for imposed forcing frequencies close to the resonant frequenc...y and high forcing amplitudes.
Keywords:
Non-isothermal CSTR / Nonlinear dynamics / Mathematical modelling / Chemical reactors / Simulation / Nonlinear frequency response methodSource:
Chemical Engineering Science, 2014, 117, 71-84Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)
- Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)
DOI: 10.1016/j.ces.2014.06.013
ISSN: 0009-2509
WoS: 000340931800007
Scopus: 2-s2.0-84903822359
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Nikolić-Paunić, Daliborka AU - Seidel-Morgenstern, Andreas AU - Petkovska, Menka PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2670 AB - Periodic operations of a non isothermal CSTR with n-Lh order reaction, subject to a single input modulation, is analysed using the nonlinear frequency response (NFR) method, introduced in our previous publications. The method is based on deriving the asymmetrical second order frequency response function (FRE) and analysing its sign. In Part I of this paper, periodic operation with modulation of the inlet concentration or flow rate of the reaction stream is analysed. As a result, conditions regarding the reaction order, process parameters and frequency of the input modulation are identified that need to be fulfilled in order to achieve process improvement through the periodic operation compared to conventional steady state operation. The method is applied for a numerical example from literature and the results obtained by the NFR method are compared with the results of numerical simulation. Good agreement is obtained, except for imposed forcing frequencies close to the resonant frequency and high forcing amplitudes. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemical Engineering Science T1 - Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate EP - 84 SP - 71 VL - 117 DO - 10.1016/j.ces.2014.06.013 ER -
@article{ author = "Nikolić-Paunić, Daliborka and Seidel-Morgenstern, Andreas and Petkovska, Menka", year = "2014", abstract = "Periodic operations of a non isothermal CSTR with n-Lh order reaction, subject to a single input modulation, is analysed using the nonlinear frequency response (NFR) method, introduced in our previous publications. The method is based on deriving the asymmetrical second order frequency response function (FRE) and analysing its sign. In Part I of this paper, periodic operation with modulation of the inlet concentration or flow rate of the reaction stream is analysed. As a result, conditions regarding the reaction order, process parameters and frequency of the input modulation are identified that need to be fulfilled in order to achieve process improvement through the periodic operation compared to conventional steady state operation. The method is applied for a numerical example from literature and the results obtained by the NFR method are compared with the results of numerical simulation. Good agreement is obtained, except for imposed forcing frequencies close to the resonant frequency and high forcing amplitudes.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemical Engineering Science", title = "Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate", pages = "84-71", volume = "117", doi = "10.1016/j.ces.2014.06.013" }
Nikolić-Paunić, D., Seidel-Morgenstern, A.,& Petkovska, M.. (2014). Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate. in Chemical Engineering Science Pergamon-Elsevier Science Ltd, Oxford., 117, 71-84. https://doi.org/10.1016/j.ces.2014.06.013
Nikolić-Paunić D, Seidel-Morgenstern A, Petkovska M. Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate. in Chemical Engineering Science. 2014;117:71-84. doi:10.1016/j.ces.2014.06.013 .
Nikolić-Paunić, Daliborka, Seidel-Morgenstern, Andreas, Petkovska, Menka, "Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part I: Modulation of inlet concentration or flow-rate" in Chemical Engineering Science, 117 (2014):71-84, https://doi.org/10.1016/j.ces.2014.06.013 . .