Experimental Investigation of Plasma Discharge Effect on Swirl Flames at a Scaled Siemens Dry Low Emission Burner

Xin Liu, Arman A. Subash, Yupan Bao, Tomas Hurtig, Zhongshan Li, Andreas Ehn, Jenny Larfeldt, Daniel Lörstad, Thommie Nilsson, Christer Fureby

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

The effect of a Rotating Gliding Arc (RGA) plasma discharge on the flame in a scaled Siemens Dry Low Emission (DLE), SGT-750, burner was experimentally investigated under atmospheric combustion conditions. The central pilot section of the burner, named RPL (rich pilot lean), was redesigned with an integrated high voltage electrode to generate an RGA. The exhaust gas was sampled and analysed in terms of CO and NOx emissions, and the CO emission data show that the RGA extends the lean blow-out limit (LBO). High-speed OH chemiluminescence imaging was employed to understand the transient behaviour of the flame in both conditions with and without RGA and also to study the process of flame re-stabilization by the assistance of the RGA. A flame kernel, initiated around the RGA channel, was observed to play an important role in the re-stabilizing process of the flame. Although the NOx emission for the flame with RGA was found to be higher than that without RGA, it was still less than what previous data show for operating conditions with the RPL flame.
Originalspråkengelska
Titel på värdpublikationAIAA Scitech 2021 Forum
FörlagAmerican Institute of Aeronautics and Astronautics
Antal sidor9
ISBN (elektroniskt)978-1-62410-609-5
DOI
StatusPublished - 2021 jan. 4
EvenemangAIAA Scitech 2021 Forum - Virtual event
Varaktighet: 2021 jan. 112021 jan. 21
https://doi.org/10.2514/MSCITECH21

Konferens

KonferensAIAA Scitech 2021 Forum
Period2021/01/112021/01/21
Internetadress

Ämnesklassifikation (UKÄ)

  • Energiteknik
  • Atom- och molekylfysik och optik
  • Fusion, plasma och rymdfysik

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