Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part II: Modulation of inlet temperature or temperature of the cooling/heating fluid
Abstract
Periodic operation of a non isothermal CSTR subject to a single input modulation is analyzed considering a All order reaction and 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 analyzing its sign. in Part I of this paper, the periodic modulations of inlet concentration or flow-rate of the reaction stream were investigated. In this Part II, periodic operations are analyzed for modulations of the temperature of the inlet reaction stream or the temperature of the heating/cooling fluid. Conditions that need to be fulfilled in order to achieve process improvement through periodic operation are identified. The method is applied for the same numerical example taken from literature which was used in Part I. The results obtained by the NFR method are compared with the results of numerical simulations. Good agreement is obtained, except for forcing fr...equencies close to the resonant frequency. In these cases, even the sign of the DC component was not predicted correctly.
Keywords:
Non-isothermal CSTR / Nonlinear dynamics / Mathematical modeling / Chemical reactors / Simulation / Nonlinear frequency response methodSource:
Chemical Engineering Science, 2014, 117, 31-44Publisher:
- Oxford : Pergamon-Elsevier Science Ltd
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.2014.06.015
ISSN: 0009-2509
WoS: 000340931800004
Scopus: 2-s2.0-84903779882
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Institution/Community
IHTMTY - JOUR AU - Nikolić-Paunić, Daliborka AU - Seidel-Morgenstern, Andreas AU - Petkovska, Menka PY - 2014 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1467 AB - Periodic operation of a non isothermal CSTR subject to a single input modulation is analyzed considering a All order reaction and 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 analyzing its sign. in Part I of this paper, the periodic modulations of inlet concentration or flow-rate of the reaction stream were investigated. In this Part II, periodic operations are analyzed for modulations of the temperature of the inlet reaction stream or the temperature of the heating/cooling fluid. Conditions that need to be fulfilled in order to achieve process improvement through periodic operation are identified. The method is applied for the same numerical example taken from literature which was used in Part I. The results obtained by the NFR method are compared with the results of numerical simulations. Good agreement is obtained, except for forcing frequencies close to the resonant frequency. In these cases, even the sign of the DC component was not predicted correctly. PB - Oxford : Pergamon-Elsevier Science Ltd T2 - Chemical Engineering Science T1 - Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part II: Modulation of inlet temperature or temperature of the cooling/heating fluid VL - 117 SP - 31 EP - 44 DO - 10.1016/j.ces.2014.06.015 ER -
@article{ author = "Nikolić-Paunić, Daliborka and Seidel-Morgenstern, Andreas and Petkovska, Menka", year = "2014", abstract = "Periodic operation of a non isothermal CSTR subject to a single input modulation is analyzed considering a All order reaction and 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 analyzing its sign. in Part I of this paper, the periodic modulations of inlet concentration or flow-rate of the reaction stream were investigated. In this Part II, periodic operations are analyzed for modulations of the temperature of the inlet reaction stream or the temperature of the heating/cooling fluid. Conditions that need to be fulfilled in order to achieve process improvement through periodic operation are identified. The method is applied for the same numerical example taken from literature which was used in Part I. The results obtained by the NFR method are compared with the results of numerical simulations. Good agreement is obtained, except for forcing frequencies close to the resonant frequency. In these cases, even the sign of the DC component was not predicted correctly.", publisher = "Oxford : Pergamon-Elsevier Science Ltd", journal = "Chemical Engineering Science", title = "Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR using single input modulations. Part II: Modulation of inlet temperature or temperature of the cooling/heating fluid", volume = "117", pages = "31-44", doi = "10.1016/j.ces.2014.06.015" }
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 II: Modulation of inlet temperature or temperature of the cooling/heating fluid. in Chemical Engineering Science Oxford : Pergamon-Elsevier Science Ltd., 117, 31-44. https://doi.org/10.1016/j.ces.2014.06.015
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 II: Modulation of inlet temperature or temperature of the cooling/heating fluid. in Chemical Engineering Science. 2014;117:31-44. doi:10.1016/j.ces.2014.06.015 .
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 II: Modulation of inlet temperature or temperature of the cooling/heating fluid" in Chemical Engineering Science, 117 (2014):31-44, https://doi.org/10.1016/j.ces.2014.06.015 . .