Santiago Cardona Vargas

Dr. Santiago Cardona Vargas

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 February 2025 in Combustion and Flame
Verified
Journal Article
Closed access
HDHongchao Dai
Hongchao Dai
SVSantiago Cardona Vargas
Santiago Cardona Vargas
SWShixing Wang
Shixing Wang
XCXiao Cai
Xiao Cai
JWJinhua Wang
Jinhua Wang
TGThibault F. Guiberti
Thibault F. Guiberti

25 December 2022 in Energies
Verified
Journal Article
Open access
PDF file
CJCristian David Avila Jimenez
Cristian David Avila Jimenez
SVSantiago Cardona Vargas
Santiago Cardona Vargas
MJMohammed A. Juaied
Mohammed A. Juaied
MYMourad Younes
Mourad Younes
AJAqil Jamal
Aqil Jamal
WRWilliam L. Roberts
William L. Roberts
This work presents an experimental study on the influence of the pilot flame characteristics on the flame morphology and exhaust emissions of a turbulent swirling flame. A reduced-scale burner, inspired by that fitted in the AE-T100 micro gas turbine, was employed as the experimental platform to evaluate methane (CH4) and an ammonia-methane fuel blend with an ammonia (NH3) volume fraction of 0.7. The power ratio (PR) between the pilot flame and the main flame and the fuel composition of the pilot flame was investigated. The pilot power ratio was varied from 0 to 20% for both fuel compositions tested. The NH3 volume fraction in the pilot flame ranged from pure CH4 to pure NH3 through various NH3–CH4 blends. Flame images and exhaust emissions, namely CO2, CO, NO, and N2O were recorded. It was found that increasing the pilot power ratio produces more stable flames and influences most of the exhaust emissions measured. The CO2 concentration in the exhaust gases was roughly constant for CH4-air or NH3–CH4–air flames. In addition, a CO2 concentration reduction of about 45% was achieved for XNH3 = 0.70 compared with pure CH4, while still producing stable flames as long as PR ≥ 5%. The pilot power ratio was found to have a higher relative impact on NO emissions for CH4 than for NH3–CH4, with measured exhaust NO percentage increments of about 276% and 11%, respectively. The N2O concentration was constant for all pilot power ratios for CH4 but it decreased when the pilot power ratio increased for NH3–CH4. The pilot fuel composition highly affected the NO and N2O emissions. Pure CH4 pilot flames and higher power ratios produced higher NO emissions. Conversely, the NO concentration was roughly constant for pure NH3 pilot flames, regardless of the pilot power ratio. Qualitative OH-PLIF images were recorded to further investigate these trends. Results showed that the pilot power ratio and the pilot fuel composition modified the flame morphology and the OH concentration, which both influence NO emissions.

28 September 2023 in Applications in Energy and Combustion Science
Verified
Journal Article
Open access
TGThibault F. Guiberti
Thibault F. Guiberti
Nader Nasser ShohdyNader Nasser Shohdy
Nader Nasser Shohdy
SVSantiago Cardona Vargas
Santiago Cardona Vargas
XZXuren Zhu
Xuren Zhu
LSLaurent Selle
Laurent Selle
CLCorentin J. Lapeyre
Corentin J. Lapeyre


22 August 2025 in Proceedings of the Combustion Institute
Verified
Journal Article
Open access
CJCristian D. Avila Jimenez
Cristian D. Avila Jimenez
AMAndrew Macfarlane
Andrew Macfarlane
FCFelipe Campuzano
Felipe Campuzano
SVSantiago Cardona Vargas
Santiago Cardona Vargas
MDMatthew Dunn
Matthew Dunn
WRWilliam L. Roberts
William L. Roberts

8 April 2026 in Combustion and Flame
Verified
Journal Article
Closed access
HDHongchao Dai
Hongchao Dai
SVSantiago Cardona Vargas
Santiago Cardona Vargas
CHCongjie Hong
Congjie Hong
SWShixing Wang
Shixing Wang
XCXiao Cai
Xiao Cai
TGThibault F. Guiberti
Thibault F. Guiberti