Filters








557,533 Hits in 5.7 sec

Control and optimization of batch processes

2006 IEEE Control Systems  
The operation of batch processes involves reaction and separation recipes developed in the laboratory.  ...  Discontinuous operations can be of the batch or semi-batch type. In batch operations, the reactants are loaded in a vessel and processed without material addition or removal.  ...  Control of Batch Processes Control of batch processes differs from control of continuous processes in two main ways.  ... 
doi:10.1109/mcs.2006.252831 fatcat:es6oe4dlfjb63c7yqgw4axipqe

Control and Optimization of Batch Processes [chapter]

Dominique Bonvin
2014 Encyclopedia of Systems and Control  
The operation of batch processes involves reaction and separation recipes developed in the laboratory.  ...  Discontinuous operations can be of the batch or semi-batch type. In batch operations, the reactants are loaded in a vessel and processed without material addition or removal.  ...  Control of Batch Processes Control of batch processes differs from control of continuous processes in two main ways.  ... 
doi:10.1007/978-1-4471-5102-9_251-1 fatcat:6dp5tx7uircnhpvhvw2xu67zjm

Control and Optimization of Batch Processes [chapter]

Dominique Bonvin
2015 Encyclopedia of Systems and Control  
The operation of batch processes involves reaction and separation recipes developed in the laboratory.  ...  Discontinuous operations can be of the batch or semi-batch type. In batch operations, the reactants are loaded in a vessel and processed without material addition or removal.  ...  Control of Batch Processes Control of batch processes differs from control of continuous processes in two main ways.  ... 
doi:10.1007/978-1-4471-5058-9_251 fatcat:2zdwp2jekncc3gyc26aye4earm

Loop shaping for iterative control of batch processes

2002 IEEE Control Systems  
T he idea of iterative control of batch processes has been discussed in the literature for some time.  ...  Run-to-run evolution of a batch process with an ILC update is a system with states comprising plant input and output histories over the batch time.  ...  Acknowledgment The author gratefully acknowledges Jan Jelinek and Anoop Mathur of Honeywell Laboratories in Minneapolis for useful discussions and for providing the thermal processing simulation model  ... 
doi:10.1109/mcs.2002.1077785 fatcat:xjxqz4wks5dfxosw2uxr3a3akm

MODELLING AND CONTROL OF PROCESS INDUSTRY BATCH PRODUCTION SYSTEMS

D.A. van Beek, A. van den Ham, J.E. Rooda
2002 IFAC Proceedings Volumes  
Many models of process industry batch production systems are of a continuoustime/discrete-event (CT/DE) nature: physical processes are modelled using CT specifications, operating procedures are modelled  ...  It also makes it possible to solve scheduling problems in Chi, and to integrate the scheduler with the model of the batch production systems.  ...  Meuldijk for providing the necessary chemical background for the second case study, and they would like to thank the anonymous referees for helpful comments on the draft of this paper.  ... 
doi:10.3182/20020721-6-es-1901.00555 fatcat:e23z5jjhwjcsjfcb7oloxwuhzm

Coordination and control of batch-based multistage processes

Kai Han, Kaibo Wang
2013 Journal of manufacturing systems  
This paper focuses on developing a process control strategy for batch production in a multistage process.  ...  In addition, products are processed batch by batch in certain manufacturing processes. In such cases, the traditional EWMA controller might not effectively reduce the variation.  ...  This work was supported by the National Natural Science Foundation of China (NSFC) under Grant No. 71072012 and Tsinghua University Initiative Scientific Research Program.  ... 
doi:10.1016/j.jmsy.2012.12.004 fatcat:d7wae4utbbbvlgfqf77lrbhj5a

Control of batch crystallization—A system inversion approach

Ulrich Vollmer, Jörg Raisch
2006 Chemical Engineering and Processing  
In this article, a new approach to the control of batch cooling crystallizers is presented.  ...  System inversion is performed making use of a state-dependent time scaling of the population balance model.  ...  Conclusion In this article, the control of batch crystallization processes was treated in a system inversion framework.  ... 
doi:10.1016/j.cep.2006.01.012 fatcat:oyrlivsx4zfsxpndaao5yjfine

Optimal Control of a Nonlinear Time-Delay System in Batch Fermentation Process

Yongsheng Yu
2014 Mathematical Problems in Engineering  
The main control goal in batch process is to get a high yield of products.  ...  The control variables in this problem include the initial concentrations of biomass and glycerol and the terminal time of the batch process.  ...  Acknowledgments The supports of the Natural Science Foundation for the Youth of China (no. 11201267) and the Shandong Province Natural Science Foundation of China (no.  ... 
doi:10.1155/2014/478081 fatcat:ajwlcdwkhvflzbgjhxczq67dsq

Simple Control Systems for Set-point Control of Dissolved Oxygen Concentration in Batch Fermentation Processes

Donatas Levisauskas, Rimvydas Simutis, Vytautas Galvanauskas, Renaldas Urniezius
2019 Chemical Engineering Transactions  
However, automatic set-point control of DOC in batch and fed-batch fermentation processes is not a trivial control task, as the resulting dynamic parameters (gain coefficient, time constant and time delay  ...  In this text, two control approaches have been proposed for coping with the problems of nonlinear and non-stationary dynamics of the DOC control process.  ...  Conclusions The two simple adaptive PI control systems have been developed and investigated for controlling the DOC in batch and fed-batch fermentation processes.  ... 
doi:10.3303/cet1974022 doaj:580265bcbf2a47049aa642c956c79243 fatcat:6y3i2osthvhbtp3enewkjegq7u

COMPARISON OF THE SEPARATION PERFORMANCES OF A MULTI-EFFECT BATCH DISTILLATION SYSTEM AND A CONTINUOUS DISTILLATION SYSTEM [chapter]

Shinji HASEBE, Taketoshi KUROOKA, Iori HASHIMOTO
1995 Dynamics and Control of Chemical Reactors, Distillation Columns and Batch Processes (Dycord'95)  
SCOPE OF THE PROJECT • How can we separate ternary mixtures in closed batch distillation arrangements? • What are the batch time (energy) requirements for separating each mixture?  ...  Three pure components are accumulated in the vessels at the end of the process ( Figure 2 ) For a heteroazeotropic system an initial build-up period is required, followed by a heteroazeotropic distillation  ...  ), in terms of batch time (energy) requirements • The modified multivessel column without vapor bypass is proposed for the separation of zeotropic systems • The conventional multivessel column with vapor  ... 
doi:10.1016/b978-0-08-042368-5.50043-5 fatcat:jf6ovspjvjejllzmmjveohqxo4

Potential strategies for process control and monitoring of stabilization of dairy wastewaters in batch aerobic treatment systems

Pius M. Ndegwa, Li Wang, Venkata K. Vaddella
2007 Process Biochemistry  
strategies for monitoring and/or control of this treatment process.  ...  process.  ...  Because of the variations in the influent characteristics, this reduction in COD could be used for control of these extended batch treatment systems for dairy wastewater using either pH or ORP.  ... 
doi:10.1016/j.procbio.2007.06.001 fatcat:ytwvzdlrdnhg3e3ggw7iycggge

Modeling nonlinear stochastic kinetic system and stochastic optimal control of microbial bioconversion process in batch culture

Lei Wang, Enmin Feng, Zhilong Xiu
2013 Nonlinear Analysis: Modelling and Control  
Thus, based on the nonlinear deterministic dynamical system of glycerol bioconversion to 1,3-propanediol in batch culture, we present the stochastic version of the batch fermentation process driven by  ...  In this paper, we analyze a stochastic model representing batch fermentation in the process of glycerol bio-dissimilation to 1,3-propanediol by klebsiella pneumoniae.  ...  In Section 2, we present a nonlinear stochastic kinetic system of batch fermentation process.  ... 
doi:10.15388/na.18.1.14035 fatcat:shhwc777wnfhlbso2qw57hgnc4

Modelling and optimal control of a time-delayed switched system in fed-batch process

Chongyang Liu, Zhaohua Gong
2014 Journal of the Franklin Institute  
Numerous studies have been reported concerning the control of fed-batch processes in the literature.  ...  The main control goal of the fed-batch process is to maximize the yield of target product as well as to minimize the operation costs simultaneously.  ...  Acknowledgments The supports of the Natural Science Foundation for the Youth of China (Nos. 11201267, 11001153), the Tian Yuan Special Funds of the National Natural Science Foundation of China (No. 11126077  ... 
doi:10.1016/j.jfranklin.2013.09.014 fatcat:em6dceyazfa2nhyob7sbbq7a6u

Optimal control of a switched autonomous system with time delay arising in fed-batch processes

C. Liu
2014 IMA Journal of Applied Mathematics  
In this paper, we propose a switched autonomous system with time delay to model the 1,3-propanediol (1,3-PD) production in a fed-batch process.  ...  Taking the switching instants and the terminal time as the control variables, we formulate a constrained time-delayed optimal control (CTOC) problem to optimize the 1,3-PD production process.  ...  In Section 2, a switched autonomous system model for a fed-batch process is formulated. Section 3 gives an optimal control model and its equivalent form in the fed-batch process.  ... 
doi:10.1093/imamat/hxt053 fatcat:ujekg363sneozghmntkj44ss7u

Firefly Algorithm Tuning of PID Controller for Glucose Concentration Control during E. coli Fed-batch Cultivation Process

Olympia Roeva, Tsonyo Slavov
2012 Conference on Computer Science and Information Systems  
The controller is used to control feed rate and to maintain glucose concentration at the desired set point for an E. coli fed-batch cultivation process.  ...  The comparison of both meta-heuristics shows superior performance for FA PID controller tuning of the considered nonlinear control system than GA tuned controller.  ...  quality control of biotechnological processes with application of modified conventional and metaheuristics methods".  ... 
dblp:conf/fedcsis/RoevaS12 fatcat:s5lqydsnwvev5ixgj3snfjjjdy
« Previous Showing results 1 — 15 out of 557,533 results