Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor

This study aims to determine the stability of atmospheric pressure non-thermal plasma generated in dielectric barrier discharge (DBD) based on temperature profiles measured using a fiber Bragg grating (FBG). Two sets of the DBD reactor were fabricated using two symmetrical electrodes separated by 2....

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Main Author:	Aizat, Muhamad Arif
Format:	Thesis
Language:	English
Published:	2018
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/81578/1/MuhamadArifAizatMFS2018.pdf
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spelling	my-utm-ep.815782019-09-10T01:41:10Z Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor 2018 Aizat, Muhamad Arif QC Physics This study aims to determine the stability of atmospheric pressure non-thermal plasma generated in dielectric barrier discharge (DBD) based on temperature profiles measured using a fiber Bragg grating (FBG). Two sets of the DBD reactor were fabricated using two symmetrical electrodes separated by 2.31 mm and 3.74 mm discharge gap, respectively with dielectric material of alumina plates. The FBG was used as a temperature sensor by embedded directly into the plasma stream. The temperature was measured at different applied voltages within range of 0 to 7 kV. The results show that the streamer discharge was generated by the DBD reactor with the 2.31 mm discharge gap at 5.5 kV while the DBD reactor with the 3.74 mm discharge gap generated filamentary discharge at 7 kV. The temperature increases proportionally as the applied voltages increases. The stability of the DBD reactor was performed by operated at constant applied voltage for 600 seconds. The temperature profiles of the DBD reactor with the 2.31 mm discharge gap were measured in the range of 210 - 231 oC with applied voltage of 5.0 kV and in the range of 270 - 286 oC at 6 kV. For the DBD reactor with the 3.74 mm discharge gap, the temperature profiles were measured in the range of 47 - 67 oC when operated at 6 kV and in the range of 193 - 245 oC at 7 kV. A huge temperature difference was found for the DBD reactor with the 3.74 mm discharge gap which results in localized heat generation of the discharge caused by the filamentary discharge. The filamentary discharge disrupted the homogeneity of the plasma and created the instabilities in the DBD reactor. The plasma intensity of the DBD reactor measured by the optical emission spectroscopy (OES) showed more fluctuation pattern when the filamentary discharge was generated compared to the streamer discharge. From this finding, the FBG can be used for temperature profiles of the DBD reactor to determine its stability on the generation of the filamentary discharge. 2018 Thesis http://eprints.utm.my/id/eprint/81578/ http://eprints.utm.my/id/eprint/81578/1/MuhamadArifAizatMFS2018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:124974 masters Universiti Teknologi Malaysia Physics
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QC Physics
spellingShingle	QC Physics Aizat, Muhamad Arif Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
description	This study aims to determine the stability of atmospheric pressure non-thermal plasma generated in dielectric barrier discharge (DBD) based on temperature profiles measured using a fiber Bragg grating (FBG). Two sets of the DBD reactor were fabricated using two symmetrical electrodes separated by 2.31 mm and 3.74 mm discharge gap, respectively with dielectric material of alumina plates. The FBG was used as a temperature sensor by embedded directly into the plasma stream. The temperature was measured at different applied voltages within range of 0 to 7 kV. The results show that the streamer discharge was generated by the DBD reactor with the 2.31 mm discharge gap at 5.5 kV while the DBD reactor with the 3.74 mm discharge gap generated filamentary discharge at 7 kV. The temperature increases proportionally as the applied voltages increases. The stability of the DBD reactor was performed by operated at constant applied voltage for 600 seconds. The temperature profiles of the DBD reactor with the 2.31 mm discharge gap were measured in the range of 210 - 231 oC with applied voltage of 5.0 kV and in the range of 270 - 286 oC at 6 kV. For the DBD reactor with the 3.74 mm discharge gap, the temperature profiles were measured in the range of 47 - 67 oC when operated at 6 kV and in the range of 193 - 245 oC at 7 kV. A huge temperature difference was found for the DBD reactor with the 3.74 mm discharge gap which results in localized heat generation of the discharge caused by the filamentary discharge. The filamentary discharge disrupted the homogeneity of the plasma and created the instabilities in the DBD reactor. The plasma intensity of the DBD reactor measured by the optical emission spectroscopy (OES) showed more fluctuation pattern when the filamentary discharge was generated compared to the streamer discharge. From this finding, the FBG can be used for temperature profiles of the DBD reactor to determine its stability on the generation of the filamentary discharge.
format	Thesis
qualification_level	Master's degree
author	Aizat, Muhamad Arif
author_facet	Aizat, Muhamad Arif
author_sort	Aizat, Muhamad Arif
title	Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
title_short	Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
title_full	Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
title_fullStr	Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
title_full_unstemmed	Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
title_sort	dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor
granting_institution	Universiti Teknologi Malaysia
granting_department	Physics
publishDate	2018
url	http://eprints.utm.my/id/eprint/81578/1/MuhamadArifAizatMFS2018.pdf
_version_	1747818362724941824

Dielectric barrier discharge non-thermal plasma stability analysis based on temperature profiles using fiber bragg grating sensor

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