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Vinayambika S Bhat - One of the best experts on this subject based on the ideXlab platform.

  • Mathematical Model of a Pilot Plant Distillation Column
    2020
    Co-Authors: Vinayambika S Bhat, S Shanmugapriya, I Thirunavukkarasu, Russell R Rhinehart
    Abstract:

    The mathematical model of the pilot plant binary Distillation Column developed is described. The binary mixture is composed of isopropyl alcohol and water. The steady behaviour of the Distillation Column has been used to identify the transfer function model. The obtained transfer function model is first order plus time delay. The experimental open loop test is conducted to identify the linear model of the pilot plant Distillation Column. The test is conducted by introducing small step change in the reboiler electric power and obtained the responses of the tray temperatures. Similarly, introducing the step change in reflux flow to record the tray temperatures

  • Decentralized pi controller with decoupler for the Distillation Column
    International journal of pure and applied mathematics, 2018
    Co-Authors: P. L. Santhosh Kumar, I Thirunavukkarasu, S. Selva Kumar, Vinayambika S Bhat
    Abstract:

    The article present a design of decentralized Proportional Integral (PI) controller with decoupler for the Pilot Plant Binary Distillation Column. Decoupler is used to minimize the interaction combining it with decentralized control algorithm. The PI controller is designed using Non-Dimensional Tuning (NDT) method and Simplified Internal Model Control (SIMC) technique. The simulation of NDT and SMIC control has been adopted to study the main effect and the interaction effect of the Pilot Plant Binary Distillation Column. The controller is designed and implemented on a Pilot Plant Binary Distillation Column.

  • Controller Design and Implementation for a Pilot Plant Binary Distillation Column
    2018 IEEE Distributed Computing VLSI Electrical Circuits and Robotics (DISCOVER), 2018
    Co-Authors: Vinayambika S Bhat, I Thirunavukkarasu, V. I. George, C Sreelatha
    Abstract:

    The binary Distillation Column is a highly nonlinear and higher order system, where the control of temperatures plays a very vital role in maintaining the purity of the end products. The article deals with the Proportional Integral Derivative (PID) controller design in both centralized and decentralized control strategy. The decentralized controller is designed with an additional controller called as the decoupler. The centralized controller that is designed is with decoupling process with an additional integral for better control with limited control interactions. The closed loop servo response is recorded. Also, both the control algorithm are validated by implementing it on a pilot plant binary Distillation Column.

  • design and implementation of decentralized pi controller for pilot plant binary Distillation Column
    2017
    Co-Authors: Vinayambika S Bhat, I Thirunavukkarasu, S Shanmugapriya
    Abstract:

    The article presents a decentralized Proportional Integral (PI) controller for a pilot plant binary Distillation Column and discusses, the basic theory of the decentralized control technique. The Relative Gain Array (RGA) approach is used for input output pairing. The PI controller is designed based on process parameters such as time constant and time delay of the process transfer function matrix. The algorithm is compared with cross- control technique, and the performance is evaluated with Integral Square Error (ISE) and Integral Absolute Error (IAE)criteria. The simulation technique has been adopted to study the main effect and the interaction effect of the plant model for the identified Distillation Column. Moreover, servo and regulatory response are evaluated. Further, the simulated results are validated in real- time environment for the identified Two Input Two Output (TITO) Distillation Column model.

Agustin Jaime Castromontoya - One of the best experts on this subject based on the ideXlab platform.

  • from simulation studies to experimental tests in a reactive dividing wall Distillation Column
    Chemical Engineering Research & Design, 2012
    Co-Authors: Raul Delgadodelgado, Salvador Hernández, Fabricio Omar Barrosomunoz, Juan Gabriel Segoviahernandez, Agustin Jaime Castromontoya
    Abstract:

    Abstract The design and control of thermally coupled Distillation sequences have been studied since many years, but the real implementation occurred until middle of the 1980s using a single shell divided by a wall named dividing wall Distillation Column. In this work, experimental results for the production of ethyl acetate in a reactive dividing wall Distillation Column are presented for first time. The experimental results are in agreement with those obtained using steady state simulations with AspenONE Aspen plus. These experimental results are important since it is possible to validate most of the previous results generated using simulations.

Pascal Dufour - One of the best experts on this subject based on the ideXlab platform.

  • Observer design for a ternary Distillation Column with side stream
    53rd IEEE Conference on Decision and Control, 2014
    Co-Authors: Chouaib Afri, Madiha Nadri Wolf, Pascal Dufour
    Abstract:

    This paper investigates the problem of observer design to provide temperature and molar fraction spatial profiles in a ternary Distillation Column with side stream. Indeed, both temperature and molar fraction spatial profiles are required to be used in advanced controller design. Such an estimation problem is usually solved using an implicit observer which requires an optimization algorithm when a differential algebraic system is used. In this paper, we consider a realistic nonlinear differential algebraic equation based model validated experimentally. We propose an approach to design an explicit observer that reconstructs all the state variables with an asymptotic convergence. The observer is build as a coupling of two nonlinear observers in full interconnection. Finally, the performance of the proposed observer is illustrated using a model of a ternary Distillation Column with side stream.

K.v. Waller - One of the best experts on this subject based on the ideXlab platform.

  • Nonlinear and adaptive multivariable control of a Distillation Column
    Proceedings of 1994 American Control Conference - ACC '94, 1994
    Co-Authors: K.b. Stromborg, K.e. Haggblom, H.t. Toivonen, K.v. Waller
    Abstract:

    Multivariable nonlinear and adaptive control is experimentally applied to two-point control of a binary Distillation Column with a nonlinear behavior in the desired operating range. In this range, linear experimentally determined models describing the behavior of the Distillation Column at different operating points are available. A nonlinear model is constructed by letting the parameters of a model with the same structure as the linear ones depend linearly on the operating point. This results in a simple bilinear process model, which is fitted to the linear models at the respective operating points. The controller used in the study is a multi-input/multi-output PID controller containing model-dependent parameters and some tuning parameters by which the tradeoff between performance and robustness can be affected. When fixed parameters are used in this controller, adequate performance is not obtained over the whole operating range of interest. However, if the model-dependent parameters are updated at each sampling instant on the basis of a linearized form of the bilinear model, the performance is uniform over the whole operating range.

I Thirunavukkarasu - One of the best experts on this subject based on the ideXlab platform.

  • Mathematical Model of a Pilot Plant Distillation Column
    2020
    Co-Authors: Vinayambika S Bhat, S Shanmugapriya, I Thirunavukkarasu, Russell R Rhinehart
    Abstract:

    The mathematical model of the pilot plant binary Distillation Column developed is described. The binary mixture is composed of isopropyl alcohol and water. The steady behaviour of the Distillation Column has been used to identify the transfer function model. The obtained transfer function model is first order plus time delay. The experimental open loop test is conducted to identify the linear model of the pilot plant Distillation Column. The test is conducted by introducing small step change in the reboiler electric power and obtained the responses of the tray temperatures. Similarly, introducing the step change in reflux flow to record the tray temperatures

  • Decentralized pi controller with decoupler for the Distillation Column
    International journal of pure and applied mathematics, 2018
    Co-Authors: P. L. Santhosh Kumar, I Thirunavukkarasu, S. Selva Kumar, Vinayambika S Bhat
    Abstract:

    The article present a design of decentralized Proportional Integral (PI) controller with decoupler for the Pilot Plant Binary Distillation Column. Decoupler is used to minimize the interaction combining it with decentralized control algorithm. The PI controller is designed using Non-Dimensional Tuning (NDT) method and Simplified Internal Model Control (SIMC) technique. The simulation of NDT and SMIC control has been adopted to study the main effect and the interaction effect of the Pilot Plant Binary Distillation Column. The controller is designed and implemented on a Pilot Plant Binary Distillation Column.

  • Controller Design and Implementation for a Pilot Plant Binary Distillation Column
    2018 IEEE Distributed Computing VLSI Electrical Circuits and Robotics (DISCOVER), 2018
    Co-Authors: Vinayambika S Bhat, I Thirunavukkarasu, V. I. George, C Sreelatha
    Abstract:

    The binary Distillation Column is a highly nonlinear and higher order system, where the control of temperatures plays a very vital role in maintaining the purity of the end products. The article deals with the Proportional Integral Derivative (PID) controller design in both centralized and decentralized control strategy. The decentralized controller is designed with an additional controller called as the decoupler. The centralized controller that is designed is with decoupling process with an additional integral for better control with limited control interactions. The closed loop servo response is recorded. Also, both the control algorithm are validated by implementing it on a pilot plant binary Distillation Column.

  • design and implementation of decentralized pi controller for pilot plant binary Distillation Column
    2017
    Co-Authors: Vinayambika S Bhat, I Thirunavukkarasu, S Shanmugapriya
    Abstract:

    The article presents a decentralized Proportional Integral (PI) controller for a pilot plant binary Distillation Column and discusses, the basic theory of the decentralized control technique. The Relative Gain Array (RGA) approach is used for input output pairing. The PI controller is designed based on process parameters such as time constant and time delay of the process transfer function matrix. The algorithm is compared with cross- control technique, and the performance is evaluated with Integral Square Error (ISE) and Integral Absolute Error (IAE)criteria. The simulation technique has been adopted to study the main effect and the interaction effect of the plant model for the identified Distillation Column. Moreover, servo and regulatory response are evaluated. Further, the simulated results are validated in real- time environment for the identified Two Input Two Output (TITO) Distillation Column model.