Ignition, efficiency and emissions of RP-3 kerosene in a three-staged multi-injection combustor

Zhao, Yuanchun; He, Xiaomin; Li, Mingyu; Lu, Rong Rong; Yao, Kanghong

doi:10.1016/j.fuproc.2020.106635

Cited by 20 publications

(2 citation statements)

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“…The flame area change tendency of ignition success is similar to that of the dual-swirl-stabilized combustor 25 and three-staged multi-injection combustor in the literature. 24 Because the processing area selected in this study does not cover the entire combustor, it is impossible to photograph the third stage of the ignition process (i.e. when the flame surface fills the entire combustor process).…”

Section: Experimental Results and Analysismentioning

confidence: 99%

“…The ignition characteristics were analysed theoretically, and the key factors affecting ignition were summarised. Zhao 24 and Yang, 25 respectively, studied the typical spark ignition of a three-stage and two-stage swirl combustor using high-speed photography. Michael et al 26 experimentally investigated high-altitude re-ignition in a three-swirl combustor and analysed the dynamic development of the flame for ignition success and failure through snapshots obtained using high-speed photography.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the effects of flame surface development on the ignition mechanism of aero-engine combustors

Zhang

Wang

Yang

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part G:

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Large eddy simulation was employed to simulate the effects of different vane angles of the primary and pilot stages on the ignition process of a combustor under normal temperature and pressure conditions. The simulation results of different vane angles of the pilot stage were then verified experimentally. Kernel initiation and flame propagation in the cases of ignition success and failure were analysed. It was found that in the ignition failure case, the flame kernels are confined to the downstream zones of the venturi and cannot propagate radially, and almost no negative displacement exists in the axial direction. However, in the ignition success case, sub-fire kernels are always present outside the radial boundary of the primary stage. Five ignition modes were finally proposed: (I1) typical ignition, (I2) relatively high-speed ignition, (I3) single-kernel alternating dominant, (I4) main kernel dominant, and (I5) dual-kernel dominant modes. Using high-speed photography, the flame shape changes and ignition characteristics in the cases of successful and failed ignition with different pilot-stage vane angles were investigated.

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Section: Experimental Results and Analysismentioning

confidence: 99%