Effluent nozzles in reverse-vortex-stabilized microwave CO2 plasmas for improved energy efficiency

C.F.A.M. van Deursen; H.M.S. van Poyer; W.A. Bongers; F.J.J. Peeters; F.M.A. Smits; M.C.M. van de Sanden

doi:10.1016/j.jcou.2024.102952

Effluent nozzles in reverse-vortex-stabilized microwave CO₂ plasmas for improved energy efficiency

C.F.A.M. van Deursen (Corresponding author), H.M.S. van Poyer, W.A. Bongers, F.J.J. Peeters, F.M.A. Smits, M.C.M. van de Sanden

Research output: Contribution to journal › Article › Academic › peer-review

2 Downloads (Pure)

Abstract

Energy efficiency and conversion in a reverse-vortex microwave CO₂ plasma are enhanced by optimizing the thermal trajectories using a converging diverging nozzle in subsonic flows. The nozzle mixes cold, unconverted gas at the edge of the flow with hot, active gas in the middle of the flow. Temperature measurements are taken of the quartz tube as well as just above the nozzle inlet and directly after the nozzle and presented to elucidate differences in performance. Measurements show significant improvements in conversion and energy efficiency, especially at pressures close to atmospheric pressure (500 – 900 mbar). In addition an improvement in plasma stability when adding a converging diverging nozzle. Thermal measurements also point towards a shift in energy loss mechanisms when changing flow configurations.

Original language	English
Article number	102952
Number of pages	10
Journal	Journal of CO2 Utilization
Volume	88
DOIs	https://doi.org/10.1016/j.jcou.2024.102952
Publication status	Published - Oct 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors

Keywords

Carbon dioxide
Plasma dissociation
Reverse vortex
Thermal plasma

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jcou.2024.102952

pdfFinal published version, 5.04 MBLicence: CC BY

Cite this

@article{b6951d33d29d4744b4990f3c88931d1f,

title = "Effluent nozzles in reverse-vortex-stabilized microwave CO2 plasmas for improved energy efficiency",

abstract = "Energy efficiency and conversion in a reverse-vortex microwave CO2 plasma are enhanced by optimizing the thermal trajectories using a converging diverging nozzle in subsonic flows. The nozzle mixes cold, unconverted gas at the edge of the flow with hot, active gas in the middle of the flow. Temperature measurements are taken of the quartz tube as well as just above the nozzle inlet and directly after the nozzle and presented to elucidate differences in performance. Measurements show significant improvements in conversion and energy efficiency, especially at pressures close to atmospheric pressure (500 – 900 mbar). In addition an improvement in plasma stability when adding a converging diverging nozzle. Thermal measurements also point towards a shift in energy loss mechanisms when changing flow configurations.",

keywords = "Carbon dioxide, Plasma dissociation, Reverse vortex, Thermal plasma",

author = "{van Deursen}, C.F.A.M. and {van Poyer}, H.M.S. and W.A. Bongers and F.J.J. Peeters and F.M.A. Smits and {van de Sanden}, M.C.M.",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors",

year = "2024",

month = oct,

doi = "10.1016/j.jcou.2024.102952",

language = "English",

volume = "88",

journal = "Journal of CO2 Utilization",

issn = "2212-9820",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Effluent nozzles in reverse-vortex-stabilized microwave CO2 plasmas for improved energy efficiency

AU - van Deursen, C.F.A.M.

AU - van Poyer, H.M.S.

AU - Bongers, W.A.

AU - Peeters, F.J.J.

AU - Smits, F.M.A.

AU - van de Sanden, M.C.M.

PY - 2024/10

Y1 - 2024/10

N2 - Energy efficiency and conversion in a reverse-vortex microwave CO2 plasma are enhanced by optimizing the thermal trajectories using a converging diverging nozzle in subsonic flows. The nozzle mixes cold, unconverted gas at the edge of the flow with hot, active gas in the middle of the flow. Temperature measurements are taken of the quartz tube as well as just above the nozzle inlet and directly after the nozzle and presented to elucidate differences in performance. Measurements show significant improvements in conversion and energy efficiency, especially at pressures close to atmospheric pressure (500 – 900 mbar). In addition an improvement in plasma stability when adding a converging diverging nozzle. Thermal measurements also point towards a shift in energy loss mechanisms when changing flow configurations.

AB - Energy efficiency and conversion in a reverse-vortex microwave CO2 plasma are enhanced by optimizing the thermal trajectories using a converging diverging nozzle in subsonic flows. The nozzle mixes cold, unconverted gas at the edge of the flow with hot, active gas in the middle of the flow. Temperature measurements are taken of the quartz tube as well as just above the nozzle inlet and directly after the nozzle and presented to elucidate differences in performance. Measurements show significant improvements in conversion and energy efficiency, especially at pressures close to atmospheric pressure (500 – 900 mbar). In addition an improvement in plasma stability when adding a converging diverging nozzle. Thermal measurements also point towards a shift in energy loss mechanisms when changing flow configurations.

KW - Carbon dioxide

KW - Plasma dissociation

KW - Reverse vortex

KW - Thermal plasma

UR - http://www.scopus.com/inward/record.url?scp=85205927817&partnerID=8YFLogxK

U2 - 10.1016/j.jcou.2024.102952

DO - 10.1016/j.jcou.2024.102952

M3 - Article

AN - SCOPUS:85205927817

SN - 2212-9820

VL - 88

JO - Journal of CO2 Utilization

JF - Journal of CO2 Utilization

M1 - 102952

ER -