https://doi.org/10.1051/epjconf/202430910019
In-situ temperature monitorization in oscillatory flow crystallizer using optical fiber sensors with a Bragg grating inscribed at the fiber tips ends
1 INESC TEC – Institute for Systems and Computer Engineering, Technology and Science, Porto, Portugal
2 Department of Engineering Physics, Faculty of Engineering, University of Porto, Porto, Portugal
3 LEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
4 ALiCE – Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
* Corresponding author: susana.o.silva@inesctec.pt
Published online: 31 October 2024
Optical fiber sensors were implemented to measure in-situ temperature variations in an oscillatory flow crystallizer operating in continuous. The sensors were fabricated by cleaved in the middle 8 mm-length fiber Bragg gratings, forming tips with a Bragg grating of 4 mm inscribed at the fiber ends. The geometry of the sensors fabricated, with a diameter of 125 μm, allowed the temperature monitorization of the process flow, inside the crystallizer, at four different points: input, two intermediate points, and output. The results revealed that the proposed technology allows to perform an in-situ and in line temperature monitorization, during all the crystallization process, as an alternative to more expensive and complex technology.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
