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Non-Thermal Gliding Arc Plasma Disch...

Abraham Shaji, Mobish,

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Non-Thermal Gliding Arc Plasma Discharges: Scaling Up and High Power Industrial Applications /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Non-Thermal Gliding Arc Plasma Discharges: Scaling Up and High Power Industrial Applications // Mobish Abraham Shaji.
Author:	Abraham Shaji, Mobish,
Description:	1 electronic resource (209 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
Contained By:	Dissertations Abstracts International86-12B.
Subject:	Mechanical engineering. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32047361
ISBN:	9798280750401

Non-Thermal Gliding Arc Plasma Discharges: Scaling Up and High Power Industrial Applications /
Abraham Shaji, Mobish,

Non-Thermal Gliding Arc Plasma Discharges: Scaling Up and High Power Industrial Applications /Mobish Abraham Shaji. - 1 electronic resource (209 pages)

Source: Dissertations Abstracts International, Volume: 86-12, Section: B.

Non-thermal Gliding Arc Plasma Discharge (GAD) is a promising candidate for industrial-scale Plasma-driven Chemical Processing, as they effectively sustain chemical selectivity even under high energy inputs. However, their application has largely been limited to power levels below 2 kW, mainly due to the high gas temperatures (7,000- 10,000 °C) generated by higher electric currents, which lead to thermal ionization and increased electrode erosion. This thesis aims to address this limitation by developing and characterizing a scaled-up 20 kW GAD system and evaluating the applicability of GAD for processes requiring high- energy inputs. A 20 kW GAD system was developed based on the energy density and current density criteria required for non-thermal plasma operation. Diagnostic analysis of reduced electric field and thermal equilibrium indicators shows that the scaled-up system maintains non-thermal behavior throughout its operational range. Investigations were conducted to study the applicability of GAD in processes requiring high-power systems, such as 1) Degradation of per- and polyfluoroalkyl substances (PFAS), 2) Plasma activation of water, and 3) Degradation of tar present in waste-to- energy syngas. The results show that: 1) GAD effectively degrades PFAS without generating any toxic byproducts, 2) Plasma activation of water with GAD decreases surface tension of water by 6%, increases the viscosity by 12%, and reduces the contact angle by 36%, and 3) GAD degrades 100% of the tar from syngas by using energy equivalent to approximately 10% of the syngas's heating value, experiments with the 20 kW GAD showed that the scaled up system degrades significant amount of tar at reasonable energy costs. The findings of this study demonstrate that GAD can be scaled to higher power levels while maintaining chemical selectivity, and it can be effectively utilized in applications that necessitate higher power systems.

English

ISBN: 9798280750401Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Gliding Arc Plasma Discharge

Non-Thermal Gliding Arc Plasma Discharges: Scaling Up and High Power Industrial Applications /
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520 $a Non-thermal Gliding Arc Plasma Discharge (GAD) is a promising candidate for industrial-scale Plasma-driven Chemical Processing, as they effectively sustain chemical selectivity even under high energy inputs. However, their application has largely been limited to power levels below 2 kW, mainly due to the high gas temperatures (7,000- 10,000 °C) generated by higher electric currents, which lead to thermal ionization and increased electrode erosion. This thesis aims to address this limitation by developing and characterizing a scaled-up 20 kW GAD system and evaluating the applicability of GAD for processes requiring high- energy inputs. A 20 kW GAD system was developed based on the energy density and current density criteria required for non-thermal plasma operation. Diagnostic analysis of reduced electric field and thermal equilibrium indicators shows that the scaled-up system maintains non-thermal behavior throughout its operational range. Investigations were conducted to study the applicability of GAD in processes requiring high-power systems, such as 1) Degradation of per- and polyfluoroalkyl substances (PFAS), 2) Plasma activation of water, and 3) Degradation of tar present in waste-to- energy syngas. The results show that: 1) GAD effectively degrades PFAS without generating any toxic byproducts, 2) Plasma activation of water with GAD decreases surface tension of water by 6%, increases the viscosity by 12%, and reduces the contact angle by 36%, and 3) GAD degrades 100% of the tar from syngas by using energy equivalent to approximately 10% of the syngas's heating value, experiments with the 20 kW GAD showed that the scaled up system degrades significant amount of tar at reasonable energy costs. The findings of this study demonstrate that GAD can be scaled to higher power levels while maintaining chemical selectivity, and it can be effectively utilized in applications that necessitate higher power systems.
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653 $a Non-thermal plasma
653 $a Chemical selectivity
653 $a Plasma Activated Water
653 $a Waste-to-energy
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