Stability Analysis and Control for Non-isothermal CSTR Reactors

Colbu, Stefania-Cristiana; Hamidi, Faiçal; Popescu, Dumitru; Jerbi, Houssem; Bancila, Daniel-Marian

doi:10.1109/icsc50472.2021.9666616

2021 9th International Conference on Systems and Control (ICSC) 2021

DOI: 10.1109/icsc50472.2021.9666616

|View full text |Cite

Stability Analysis and Control for Non-isothermal CSTR Reactors

Stefania-Cristiana Colbu

Faiçal Hamidi

Dumitru Popescu

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2022

2023

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Stability Analysis for Non-Isothermal Continuous Stirred Tank Reactor-NCSTR

Popescu¹,

COLBU²,

BĂNCILĂ³

et al. 2022

AnnalsARSciInfo

View full text Add to dashboard Cite

The non-isothermal chemical and petrochemical processes represent a particular technological position in exploitation, by a possible thermal instability evolution. The aim of our paper is to analyse the stationary regime’s stability, for the Non-isothermal Continuous Stirred Tank Reactor- NCSTR, to guaranty the imposed security and performances by an adequate control solution. The mathematical nonlinear model based on the mass and thermal balance is estimated. From the thermal balance equation corresponding to the stationary operating point, the heat characteristics for the stability analysis and the necessary geometrical conditions of internal stability for NCSTR are deduced. The nonlinear dynamic state model is linearized around the stationary point and the stable operating specifications are inferred. To demonstrate the necessary and sufficient conditions for the internal stability of the exothermal regime of NCSTR, the Lyapunov stability theorem for the linear systems is established.

show abstract

Stability Analysis for Non-Isothermal Continuous Stirred Tank Reactor-NCSTR

Popescu¹,

COLBU²,

BĂNCILĂ³

et al. 2022

AnnalsARSciInfo

View full text Add to dashboard Cite

show abstract

A continuous mashing system controlled by mean residence time

et al. 2023

View full text Add to dashboard Cite

Continuous processes offer more environmentally friendlier beer production compared to the batch production. However, the continuous production of mashing has not become state-of-the-art in the brewing industry. The controllability and flexibility of this process still has hurdles for practical implementation, but which are necessary to react to changing raw materials. Once overcome, a continuous mashing can be efficiently adapted to the raw materials. Both mean residence time and temperature were investigated as key parameters to influence the extract and fermentable sugar content of the wort. The continuous mashing process was implemented as continuous stirred tank reactor (CSTR) cascade consisting of mashing in (20°C), protein rest (50°C), β-amylase rest (62-64°C), saccharification rest (72°C) and mashing out (78°C). Two different temperature settings for the β-amylase rest were investigated with particular emphasis on fermentable sugars. Analysis of Variance (ANOVA) and a post-hoc analysis showed that the mean residence time and temperature settings were suitable control parameters for the fermentable sugars. In the experimental conditions, the most pronounced effect was with the β-amylase rest. These results broaden the understanding of heterogenous CSTR mashing systems about assembly and selection of process parameters

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Stability Analysis and Control for Non-isothermal CSTR Reactors

Cited by 2 publications

References 11 publications

Stability Analysis for Non-Isothermal Continuous Stirred Tank Reactor-NCSTR

Stability Analysis for Non-Isothermal Continuous Stirred Tank Reactor-NCSTR

A continuous mashing system controlled by mean residence time

Contact Info

Product

Resources

About