Experimental investigation of reattachment behavior of turbulent lifted diffusion jet flames induced by repetitive DC electric pulse discharges with conditional PIV

T. W. Chang, Yei-Chin Chao, T. S. Cheng

Research output: Contribution to journalArticle

Abstract

Among the recently prevailing flame stabilization enhancement by electric field and plasma, repetitive DC electric pulse discharge is applied to a turbulent lifted diffusion jet flame to improve the reattachment in this study. The main objectove of this study is to characterize experimentally the stability and the reattachment behaviors of lifted flames under the electric pulse effect with a proposed electrode configuration. The effects of pulse repetition frequency (PRF) and voltage polarity on flame are investigated. The reattachment velocity increases by increasing PRF. The time history of flame base trace and absolute flame speed with positive-voltage-pulse are illustrated. The electric corona discharge is observed during upstream propagation process, and its role in flame acceleration is discussed. In addition, 2D-PIV measurement conditioned by high speed sequence images is conducted. Finally, the conditionally instantaneous flame propagation speed is enhanced and exceeds 3 times that of stoichiometric laminar flame speed, which leads to lifted flame reattachment.

Original languageEnglish
Pages (from-to)726-744
Number of pages19
JournalCombustion science and technology
Volume191
Issue number4
DOIs
Publication statusPublished - 2019 Apr 3

Fingerprint

electric pulses
turbulent diffusion
diffusion flames
particle image velocimetry
attachment
flames
direct current
Electric corona
electric corona
Electric potential
repetition
pulses
Stabilization
Electric fields
Plasmas
flame propagation
electric potential
Electrodes
upstream
polarity

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Cite this

@article{b609bab6d45b47f18a86b907399b97dc,
title = "Experimental investigation of reattachment behavior of turbulent lifted diffusion jet flames induced by repetitive DC electric pulse discharges with conditional PIV",
abstract = "Among the recently prevailing flame stabilization enhancement by electric field and plasma, repetitive DC electric pulse discharge is applied to a turbulent lifted diffusion jet flame to improve the reattachment in this study. The main objectove of this study is to characterize experimentally the stability and the reattachment behaviors of lifted flames under the electric pulse effect with a proposed electrode configuration. The effects of pulse repetition frequency (PRF) and voltage polarity on flame are investigated. The reattachment velocity increases by increasing PRF. The time history of flame base trace and absolute flame speed with positive-voltage-pulse are illustrated. The electric corona discharge is observed during upstream propagation process, and its role in flame acceleration is discussed. In addition, 2D-PIV measurement conditioned by high speed sequence images is conducted. Finally, the conditionally instantaneous flame propagation speed is enhanced and exceeds 3 times that of stoichiometric laminar flame speed, which leads to lifted flame reattachment.",
author = "Chang, {T. W.} and Yei-Chin Chao and Cheng, {T. S.}",
year = "2019",
month = "4",
day = "3",
doi = "10.1080/00102202.2018.1502756",
language = "English",
volume = "191",
pages = "726--744",
journal = "Combustion Science and Technology",
issn = "0010-2202",
publisher = "Taylor and Francis Ltd.",
number = "4",

}

TY - JOUR

T1 - Experimental investigation of reattachment behavior of turbulent lifted diffusion jet flames induced by repetitive DC electric pulse discharges with conditional PIV

AU - Chang, T. W.

AU - Chao, Yei-Chin

AU - Cheng, T. S.

PY - 2019/4/3

Y1 - 2019/4/3

N2 - Among the recently prevailing flame stabilization enhancement by electric field and plasma, repetitive DC electric pulse discharge is applied to a turbulent lifted diffusion jet flame to improve the reattachment in this study. The main objectove of this study is to characterize experimentally the stability and the reattachment behaviors of lifted flames under the electric pulse effect with a proposed electrode configuration. The effects of pulse repetition frequency (PRF) and voltage polarity on flame are investigated. The reattachment velocity increases by increasing PRF. The time history of flame base trace and absolute flame speed with positive-voltage-pulse are illustrated. The electric corona discharge is observed during upstream propagation process, and its role in flame acceleration is discussed. In addition, 2D-PIV measurement conditioned by high speed sequence images is conducted. Finally, the conditionally instantaneous flame propagation speed is enhanced and exceeds 3 times that of stoichiometric laminar flame speed, which leads to lifted flame reattachment.

AB - Among the recently prevailing flame stabilization enhancement by electric field and plasma, repetitive DC electric pulse discharge is applied to a turbulent lifted diffusion jet flame to improve the reattachment in this study. The main objectove of this study is to characterize experimentally the stability and the reattachment behaviors of lifted flames under the electric pulse effect with a proposed electrode configuration. The effects of pulse repetition frequency (PRF) and voltage polarity on flame are investigated. The reattachment velocity increases by increasing PRF. The time history of flame base trace and absolute flame speed with positive-voltage-pulse are illustrated. The electric corona discharge is observed during upstream propagation process, and its role in flame acceleration is discussed. In addition, 2D-PIV measurement conditioned by high speed sequence images is conducted. Finally, the conditionally instantaneous flame propagation speed is enhanced and exceeds 3 times that of stoichiometric laminar flame speed, which leads to lifted flame reattachment.

UR - http://www.scopus.com/inward/record.url?scp=85059022194&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059022194&partnerID=8YFLogxK

U2 - 10.1080/00102202.2018.1502756

DO - 10.1080/00102202.2018.1502756

M3 - Article

AN - SCOPUS:85059022194

VL - 191

SP - 726

EP - 744

JO - Combustion Science and Technology

JF - Combustion Science and Technology

SN - 0010-2202

IS - 4

ER -