Experimental study and numerical simulation on a cross-drilled swirl combustor

Xuren Zhu, Peng Zhang, Renfu Li, Dinggen Li, Renzhang Qian

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Experimental studies and RANS simulation were performed for cross-drilled and non-cross-drilled swirl combustors, with emphasis on investigating and comparing their velocity and temperature characteristics and combustion performance. The experimental and numerical results show that an enlarged recirculation zone with higher temperature can be formed in the cross-drilled swirl combustor, which only causes a very slight change of swirl number, compared with the non-cross-drilled one and consequently results in an improved performance of flame holding and combustion. In addition, the recirculation zone formed by the cross-drilled swirler moves to the farther downstream of the fuel injector and hence can reduce the exposure of the fuel injector to the high-temperature combustion zone. A parametric study for various inlet air velocities and excess air factors further substantiates the effectiveness of the cross-drilled swirler on the improving the combustion performance.
Original languageEnglish
Title of host publicationASPACC 2015 - 10th Asia-Pacific Conference on Combustion
PublisherCombustion Institute
Publication statusPublished - 1 Jan 2015
Event10th Asia-Pacific Conference on Combustion, ASPACC 2015 - Beijing, China
Duration: 19 Jul 201522 Jul 2015

Conference

Conference10th Asia-Pacific Conference on Combustion, ASPACC 2015
CountryChina
CityBeijing
Period19/07/1522/07/15

Keywords

  • Cross-drilled swirler
  • Flame stabilization
  • Recirculation zone
  • Swirl combustor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)
  • Condensed Matter Physics

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