Model Validation and Real-Time Process Control of a Continuous Flow Ohmic Heater

OLUWOLE-OJO, Oluwaloba Nifemi, JAVED, Tasmiyah, HOWARTH, Martin, XU, Xu, O’BRIEN, Alexander and ZHANG, Hongwei (2024). Model Validation and Real-Time Process Control of a Continuous Flow Ohmic Heater. Modelling, 5 (3), 752-775.

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Abstract

Ohmic heating is a highly efficient method for rapid fluid heating, with applications in fields such as food processing, pharmaceuticals, and chemical engineering. Prior to its industrial application, thorough analysis and modeling are crucial to ensure safe and efficient operations. Therefore, this research focuses on the development and validation of a transfer function-based model for a continuous flow ohmic heater (CFOH). Validation metrics include root mean square error (RMSE) and mean absolute percentage error (MAPE). The developed model achieves an RMSE of ±1.48 and a MAPE of ±2.58% compared to experimental results, demonstrating its accuracy. Furthermore, the research presents the implementation of robust real-time applications of advanced process controllers, including PID, MPC, and AMPC. These controllers were first simulated using the developed model and subsequently deployed in the pilot plant ohmic heater system to achieve precise temperature control and optimised input voltage. The reliability of this procedure was affirmed through a comparison between simulated results and empirical data obtained from the CFOH pilot plant. The study concludes by suggesting potential applications in fault diagnosis, educational training, system identification, and controller design.

Item Type:	Article
Identification Number:	https://doi.org/10.3390/modelling5030040
Page Range:	752-775
SWORD Depositor:	Symplectic Elements
Depositing User:	Symplectic Elements
Date Deposited:	15 Jul 2024 14:32
Last Modified:	15 Jul 2024 14:45
URI:	https://shura.shu.ac.uk/id/eprint/33962

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