A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges

Vyaas Gururajan; Riccardo Scarcelli; Anand Karpatne; Douglas Breden; Laxminarayan Raja; Sayan Biswas; Isaac Ekoto

doi:10.1115/ICEF2019-7260

A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges

Vyaas Gururajan, Riccardo Scarcelli, Anand Karpatne, Douglas Breden, Laxminarayan Raja, Sayan Biswas, Isaac Ekoto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while resulting in very little electrode erosion. Multidimensional modeling tools currently capture the electrical structure of such discharges accurately, but resolving the chemical structure remains a challenging problem owing to the disparity of time-scales in streamer propagation (nanoseconds) and ignition phenomena (microseconds). The purpose of this study is to extend multidimensional results towards resolving the chemical structure in the wake of streamers (or the afterglow) by using a batch reactor model. This can afford the use of very detailed chemical kinetic information. The full non-equilibrium nature of the electrons is taken into account, along with fast gas heating, shock wave propagation, and thermal diffusion. The results shed light on ignition phenomena brought about by such discharges.

Original language	English (US)
Title of host publication	ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791859346
DOIs	https://doi.org/10.1115/ICEF2019-7260
State	Published - 2020
Externally published	Yes
Event	ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019 - Chicago, United States Duration: Oct 20 2019 → Oct 23 2019

Publication series

Name	ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019

Conference

Conference	ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019
Country/Territory	United States
City	Chicago
Period	10/20/19 → 10/23/19

Bibliographical note

Funding Information:
Argonne National Laboratory’s work was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Vehicle Technology under contract DE-AC02-06CH11357.

Publisher Copyright:
Copyright © 2019 ASME

Keywords

Ignition
Kinetics
Non-equilibrium
Plasma

Publisher link

10.1115/ICEF2019-7260

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Gururajan, V., Scarcelli, R., Karpatne, A., Breden, D., Raja, L., Biswas, S., & Ekoto, I. (2020). A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges. In ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019 (ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ICEF2019-7260

A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges. / Gururajan, Vyaas; Scarcelli, Riccardo; Karpatne, Anand et al.
ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019. American Society of Mechanical Engineers (ASME), 2020. (ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gururajan, V, Scarcelli, R, Karpatne, A, Breden, D, Raja, L, Biswas, S & Ekoto, I 2020, A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges. in ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019. ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019, American Society of Mechanical Engineers (ASME), ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019, Chicago, United States, 10/20/19. https://doi.org/10.1115/ICEF2019-7260

Gururajan V, Scarcelli R, Karpatne A, Breden D, Raja L, Biswas S et al. A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges. In ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019. American Society of Mechanical Engineers (ASME). 2020. (ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019). doi: 10.1115/ICEF2019-7260

Gururajan, Vyaas ; Scarcelli, Riccardo ; Karpatne, Anand et al. / A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges. ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019. American Society of Mechanical Engineers (ASME), 2020. (ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019).

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abstract = "Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while resulting in very little electrode erosion. Multidimensional modeling tools currently capture the electrical structure of such discharges accurately, but resolving the chemical structure remains a challenging problem owing to the disparity of time-scales in streamer propagation (nanoseconds) and ignition phenomena (microseconds). The purpose of this study is to extend multidimensional results towards resolving the chemical structure in the wake of streamers (or the afterglow) by using a batch reactor model. This can afford the use of very detailed chemical kinetic information. The full non-equilibrium nature of the electrons is taken into account, along with fast gas heating, shock wave propagation, and thermal diffusion. The results shed light on ignition phenomena brought about by such discharges.",

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doi = "10.1115/ICEF2019-7260",

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AU - Karpatne, Anand

AU - Breden, Douglas

AU - Raja, Laxminarayan

AU - Biswas, Sayan

AU - Ekoto, Isaac

N1 - Funding Information: Argonne National Laboratory’s work was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Vehicle Technology under contract DE-AC02-06CH11357. Publisher Copyright: Copyright © 2019 ASME

PY - 2020

Y1 - 2020

N2 - Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while resulting in very little electrode erosion. Multidimensional modeling tools currently capture the electrical structure of such discharges accurately, but resolving the chemical structure remains a challenging problem owing to the disparity of time-scales in streamer propagation (nanoseconds) and ignition phenomena (microseconds). The purpose of this study is to extend multidimensional results towards resolving the chemical structure in the wake of streamers (or the afterglow) by using a batch reactor model. This can afford the use of very detailed chemical kinetic information. The full non-equilibrium nature of the electrons is taken into account, along with fast gas heating, shock wave propagation, and thermal diffusion. The results shed light on ignition phenomena brought about by such discharges.

AB - Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while resulting in very little electrode erosion. Multidimensional modeling tools currently capture the electrical structure of such discharges accurately, but resolving the chemical structure remains a challenging problem owing to the disparity of time-scales in streamer propagation (nanoseconds) and ignition phenomena (microseconds). The purpose of this study is to extend multidimensional results towards resolving the chemical structure in the wake of streamers (or the afterglow) by using a batch reactor model. This can afford the use of very detailed chemical kinetic information. The full non-equilibrium nature of the electrons is taken into account, along with fast gas heating, shock wave propagation, and thermal diffusion. The results shed light on ignition phenomena brought about by such discharges.

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KW - Kinetics

KW - Non-equilibrium

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A computational study of the thermodynamic conditions leading to autoignition in nanosecond pulsed discharges

Abstract

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