Journal of Food, Agriculture and Environment

Simulation and control of pasteurization process with inlet product temperature as disturbance

Author(s):

W. M. F. Wan Mokhtar *, F. S. Taip, N. Abdul Aziz, S. B. Mohd Noor

Recieved Date: 2012-06-27, Accepted Date: 2012-09-29

Abstract:

Effective operation of pasteurization process involves optimum control of pasteurized product temperature. However, the presence of disturbance directly change the pasteurized product temperature and consequently, the product may not be pasteurized properly and contains unwanted microorganisms. In this study, several proportional-integral-derivative (PID) tuned by different tuning methods were applied on the obtained disturbance model (inlet product temperature) and simulated using SIMULINK in order to determine the best control system. The empirical model of process used in simulation work was also developed. The model obtained can be represented by the first-order plus time delay (FOPTD) form with R² more than 0.918. Simulation results revealed that the minimization of integral absolute error (IAE) tuning method is satisfactorily adaptable for disturbance rejection with faster settling time and good robustness, whereas, ideal PID outperforms the other PID structures with lower settling time (less than 2 min). Thus, this controller tuned by minimization of IAE tuning method was good control scheme in controlling pasteurization process. In conclusion, the results obtained are recommended as a suitable control strategy for the pasteurization process of pink guava puree in the industry. 

Keywords:

Pasteurization, process control, simulation, PID controller

---

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Food and Health
Pages: 124-128

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :