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Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR with simultaneous modulation of inlet concentration and inlet temperature

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2015
10.1016j.ces.2015.06.018.pdf (867.0Kb)
Authors
Nikolić-Paunić, Daliborka
Seidel-Morgenstern, Andreas
Petkovska, Menka
Article (Accepted Version)
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Abstract
The nonlinear frequency response (NFR) method is applied for evaluation of possible improvement through simultaneous periodic modulation of two inputs of a non-isothermal continuously stirred tank reactor (CSTR) in which homogeneous nth order reaction A -> product(s) takes place. The two modulated inputs are the concentration of the reactant in the feed steam and the temperature of the feed stream. The cross asymmetrical second order FRF which correlates the outlet concentration with both modulated inputs is derived and analyzed. The optimal phase difference which should be used in order to maximize the conversion is determined. The method is tested on three numerical examples of non-isothermal CSTRs: (a) one which is oscillatory stable with strong resonant behavior, (b) one which is oscillatory stable with weak resonant behavior and
Keywords:
Nonlinear dynamics / Mathematical modeling / Chemical reactors / Simulation / Non-isothermal CSTR / Two-input modulation
Source:
Chemical Engineering Science, 2015, 137, 40-58
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
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)
Note:
  • This is peer-reviewed version of the artcle: D. Nikolić, A. Seidel-Morgenstern, M. Petkovska, Nonlinear frequency response analysis of forced periodic operation of non-isothermal CSTR with simultaneous modulation of inlet concentration and inlet temperature, Chem. Eng. Sci. 137 (2015) 40–58. https://doi.org/10.1016/j.ces.2015.06.018
  • Published version: http://cer.ihtm.bg.ac.rs/handle/123456789/1670

DOI: 10.1016/j.ces.2015.06.018

ISSN: 0009-2509

WoS: 000361772400005

Scopus: 2-s2.0-84933515754
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/3184
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