TY  - JOUR
AU  - Felischak, Matthias
AU  - Kaps, Lothar
AU  - Hamel, Christof
AU  - Nikolic, Daliborka
AU  - Petkovska, Menka
AU  - Seidel-Morgenstern, Andreas
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4995
T2  - Chemical Engineering Journal
T1  - Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate (vol 410, 128197, 2021)
VL  - 430
DO  - 10.1016/j.cej.2021.132930
ER  - 

@article{
author = "Felischak, Matthias and Kaps, Lothar and Hamel, Christof and Nikolic, Daliborka and Petkovska, Menka and Seidel-Morgenstern, Andreas",
year = "2022",
journal = "Chemical Engineering Journal",
title = "Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate (vol 410, 128197, 2021)",
volume = "430",
doi = "10.1016/j.cej.2021.132930"
}

Felischak, M., Kaps, L., Hamel, C., Nikolic, D., Petkovska, M.,& Seidel-Morgenstern, A.. (2022). Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate (vol 410, 128197, 2021). in Chemical Engineering Journal, 430.
https://doi.org/10.1016/j.cej.2021.132930

Felischak M, Kaps L, Hamel C, Nikolic D, Petkovska M, Seidel-Morgenstern A. Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate (vol 410, 128197, 2021). in Chemical Engineering Journal. 2022;430.
doi:10.1016/j.cej.2021.132930 .

Felischak, Matthias, Kaps, Lothar, Hamel, Christof, Nikolic, Daliborka, Petkovska, Menka, Seidel-Morgenstern, Andreas, "Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate (vol 410, 128197, 2021)" in Chemical Engineering Journal, 430 (2022),
https://doi.org/10.1016/j.cej.2021.132930 . .

TY  - JOUR
AU  - Felischak, Matthias
AU  - Kaps, Lothar
AU  - Hamel, Christof
AU  - Nikolic, Daliborka
AU  - Petkovska, Menka
AU  - Seidel-Morgenstern, Andreas
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4927
AB  - It is well known, that forced periodic operation possesses the potential for process improvements. Nevertheless, only a small number of applications is reported, due to complex realization, limited predictability and high inertia of larger units. Nonlinear frequency response (NFR) analysis has proven to predict efficiently time-averaged performance of reactor effluent streams originating from forced periodic changes of one or several input(s). Focus of this paper was an experimental demonstration of forced periodic operation applied to the hydrolysis of acetic anhydride carried out in an adiabatic CSTR. Theoretical results provided a guideline for experiments exploiting simultaneous sinusoidal modulations of the anhydride inlet concentration and the total volumetric flow-rate. Influences of the forcing parameters (amplitudes and the phase difference) were also studied. Confirming the predictions of NFR analysis a significantly higher time-averaged product yields were experimentally achieved compared to conventional steady-state operation with simultaneous modulation of two inputs using an optimized phase shift.
T2  - Chemical Engineering Journal
T1  - Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate
VL  - 410
DO  - 10.1016/j.cej.2020.128197
ER  - 

@article{
author = "Felischak, Matthias and Kaps, Lothar and Hamel, Christof and Nikolic, Daliborka and Petkovska, Menka and Seidel-Morgenstern, Andreas",
year = "2021",
abstract = "It is well known, that forced periodic operation possesses the potential for process improvements. Nevertheless, only a small number of applications is reported, due to complex realization, limited predictability and high inertia of larger units. Nonlinear frequency response (NFR) analysis has proven to predict efficiently time-averaged performance of reactor effluent streams originating from forced periodic changes of one or several input(s). Focus of this paper was an experimental demonstration of forced periodic operation applied to the hydrolysis of acetic anhydride carried out in an adiabatic CSTR. Theoretical results provided a guideline for experiments exploiting simultaneous sinusoidal modulations of the anhydride inlet concentration and the total volumetric flow-rate. Influences of the forcing parameters (amplitudes and the phase difference) were also studied. Confirming the predictions of NFR analysis a significantly higher time-averaged product yields were experimentally achieved compared to conventional steady-state operation with simultaneous modulation of two inputs using an optimized phase shift.",
journal = "Chemical Engineering Journal",
title = "Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate",
volume = "410",
doi = "10.1016/j.cej.2020.128197"
}

Felischak, M., Kaps, L., Hamel, C., Nikolic, D., Petkovska, M.,& Seidel-Morgenstern, A.. (2021). Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate. in Chemical Engineering Journal, 410.
https://doi.org/10.1016/j.cej.2020.128197

Felischak M, Kaps L, Hamel C, Nikolic D, Petkovska M, Seidel-Morgenstern A. Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate. in Chemical Engineering Journal. 2021;410.
doi:10.1016/j.cej.2020.128197 .

Felischak, Matthias, Kaps, Lothar, Hamel, Christof, Nikolic, Daliborka, Petkovska, Menka, Seidel-Morgenstern, Andreas, "Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate" in Chemical Engineering Journal, 410 (2021),
https://doi.org/10.1016/j.cej.2020.128197 . .

TY  - JOUR
AU  - Kaps, Lothar
AU  - Felischak, Matthias
AU  - Nikolić, Daliborka
AU  - Petkovska, Menka
AU  - Hamel, Christof
AU  - Seidel-Morgenstern, Andreas
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4407
AB  - Continuous chemical reactors are mostly operated under steady-state conditions. However, theoretical studies reveal that forced periodic operation (FPO) can lead to better performance. To predict and optimize FPO, the nonlinear frequency response (NFR) method provides an analytical approach. The presented work is focused on providing theoretical and experimental results devoted to demonstrating both the potential of forced periodic operation and the strength of the NFR method to identify suitable operating conditions. The hydrolysis of acetic anhydride is studied experimentally as a model reaction applying an adiabatic continuous stirred tank reactor (CSTR).
PB  - Wiley-VCH
T2  - Chemie Ingenieur Technik
T1  - Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method
EP  - 1346
IS  - 9
SP  - 1346
VL  - 92
DO  - 10.1002/cite.202055082
ER  - 

@article{
author = "Kaps, Lothar and Felischak, Matthias and Nikolić, Daliborka and Petkovska, Menka and Hamel, Christof and Seidel-Morgenstern, Andreas",
year = "2020",
abstract = "Continuous chemical reactors are mostly operated under steady-state conditions. However, theoretical studies reveal that forced periodic operation (FPO) can lead to better performance. To predict and optimize FPO, the nonlinear frequency response (NFR) method provides an analytical approach. The presented work is focused on providing theoretical and experimental results devoted to demonstrating both the potential of forced periodic operation and the strength of the NFR method to identify suitable operating conditions. The hydrolysis of acetic anhydride is studied experimentally as a model reaction applying an adiabatic continuous stirred tank reactor (CSTR).",
publisher = "Wiley-VCH",
journal = "Chemie Ingenieur Technik",
title = "Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method",
pages = "1346-1346",
number = "9",
volume = "92",
doi = "10.1002/cite.202055082"
}

Kaps, L., Felischak, M., Nikolić, D., Petkovska, M., Hamel, C.,& Seidel-Morgenstern, A.. (2020). Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method. in Chemie Ingenieur Technik
Wiley-VCH., 92(9), 1346-1346.
https://doi.org/10.1002/cite.202055082

Kaps L, Felischak M, Nikolić D, Petkovska M, Hamel C, Seidel-Morgenstern A. Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method. in Chemie Ingenieur Technik. 2020;92(9):1346-1346.
doi:10.1002/cite.202055082 .

Kaps, Lothar, Felischak, Matthias, Nikolić, Daliborka, Petkovska, Menka, Hamel, Christof, Seidel-Morgenstern, Andreas, "Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method" in Chemie Ingenieur Technik, 92, no. 9 (2020):1346-1346,
https://doi.org/10.1002/cite.202055082 . .

TY  - CONF
AU  - Felischak, Matthias
AU  - Nikolić, Daliborka
AU  - Petkovska, Menka
AU  - Hamel, Christof
AU  - Seidel-Morgenstern, Andreas
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4152
AB  - The classical design of continuous chemical reactors exploits steady-state operation, which is optimized and maintained by appropriate control systems. Nevertheless, it is well-known that the reactor performance can be enhanced by applying periodic regimes, like forced modulations of input parameters.The identification and evaluation of suitable periodic operation conditions is challenging. One approach that can be used is based on nonlinear frequency response (NFR) analysis. The focus of this work is the experimental analysis of shapes for two simultaneously imposed modulations (sinusoidal and square) in comparison to results predicted by the NFR method. The acetic anhydride hydrolysis was studied in an adiabatic CSTR exploiting a periodic operation mode, which was found to be superior to the corresponding steady-state operation.
C3  - German reaction Engineering Meeting (DECHEMA), Wuerzburg, Germany
T1  - Forced Periodic Operation: Effect of shapes for two simultaneously imposed modulations
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4152
ER  - 

@conference{
author = "Felischak, Matthias and Nikolić, Daliborka and Petkovska, Menka and Hamel, Christof and Seidel-Morgenstern, Andreas",
year = "2019",
abstract = "The classical design of continuous chemical reactors exploits steady-state operation, which is optimized and maintained by appropriate control systems. Nevertheless, it is well-known that the reactor performance can be enhanced by applying periodic regimes, like forced modulations of input parameters.The identification and evaluation of suitable periodic operation conditions is challenging. One approach that can be used is based on nonlinear frequency response (NFR) analysis. The focus of this work is the experimental analysis of shapes for two simultaneously imposed modulations (sinusoidal and square) in comparison to results predicted by the NFR method. The acetic anhydride hydrolysis was studied in an adiabatic CSTR exploiting a periodic operation mode, which was found to be superior to the corresponding steady-state operation.",
journal = "German reaction Engineering Meeting (DECHEMA), Wuerzburg, Germany",
title = "Forced Periodic Operation: Effect of shapes for two simultaneously imposed modulations",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4152"
}

Felischak, M., Nikolić, D., Petkovska, M., Hamel, C.,& Seidel-Morgenstern, A.. (2019). Forced Periodic Operation: Effect of shapes for two simultaneously imposed modulations. in German reaction Engineering Meeting (DECHEMA), Wuerzburg, Germany.
https://hdl.handle.net/21.15107/rcub_technorep_4152

Felischak M, Nikolić D, Petkovska M, Hamel C, Seidel-Morgenstern A. Forced Periodic Operation: Effect of shapes for two simultaneously imposed modulations. in German reaction Engineering Meeting (DECHEMA), Wuerzburg, Germany. 2019;.
https://hdl.handle.net/21.15107/rcub_technorep_4152 .

Felischak, Matthias, Nikolić, Daliborka, Petkovska, Menka, Hamel, Christof, Seidel-Morgenstern, Andreas, "Forced Periodic Operation: Effect of shapes for two simultaneously imposed modulations" in German reaction Engineering Meeting (DECHEMA), Wuerzburg, Germany (2019),
https://hdl.handle.net/21.15107/rcub_technorep_4152 .