Characteristics study on a modified advanced vortex combustor

Xie, Jin; Zhu, Yuejin

doi:10.1016/j.energy.2019.116805

Cited by 16 publications

(3 citation statements)

References 15 publications

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“…This increases combustion efficiency by improving heat and mass transfer of the combustor without changing the size and location of dual vortex structure. The modified advanced vortex combustor designed by Xie et al [17] is characterized by a variable crosssection with a bevel and guide vanes, which overcomes incomplete combustion and exhibits good combustion performance.…”

Section: Introductionmentioning

confidence: 99%

Structure Optimization of Guide Vane on Combustion Performance of Premixed H2/Air in Micro Cavity-Combustor

Kim

Pak³

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Structure Optimization of Guide Vane on Combustion Performance of Premixed H2/Air in Micro Cavity-Combustor

Kim

Pak³

et al. 2022

SSRN Journal

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“…The proposed advanced vortex combustor is characterized by inclined struts and guide vanes. This modified advanced vortex combustor is well suited to working under lean-fuel conditions [12]. The four-channel annular inlet advanced vortex combustor (AVC) can act as a flame channel when the lean oil is burning.…”

Section: Introductionmentioning

confidence: 99%

Combustion Turbulence Flow in the Advanced Vortex Combustor with Built-In Obstacles

Zeng

Wang

2021

International Journal of Aerospace Engineering

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To obtain the advanced vortex combustor (AVC) and its optimal structure parameters in light of built-in obstacles, numerical simulation was performed. This research shows that inclined struts have optimal structural parameters with inclination angle α = 30 ° and blocking ratio BR = 12 %, while guide vane and its optimal structural parameter have three layers, which are a / B = 0.1 , b / h = 0.4 , and c / L = 0.2 , respectively; blunt body has the biggest height of H 1 / B 1 = 2 / 3 . According to these statistics, the research studies how inlet factors affect turbulence flow in combustion. The research finds increases in inlet velocity and flow resistance are in positive correlation. As inlet temperature increases, the flow resistance decreases. From field synergy theory, inlet factor has different effect on the heat transfer performance.

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“…Traditional aero engines or gas turbines often use a swirler as the flame stabilizer, − which has a positive effect on the atomization and evaporation of liquid fuels, but with an inefficient fuel and air mixing as well as a narrow combustion stabilization range. Therefore, it is necessary to develop various efficient combustion and flame stabilization technological devices, such as trapped vortex combustor, , advanced vortex combustor, , and cavity-stabilized combustor for ramjet or scramjet, , the principle of which involves the addition of blunt bodies or cavity structures in the combustors to form a low-speed recirculation zone for fuel and air mixing and combustion. The vortex-stabilized combustion technology has attracted more and more researchers because of its advantages in terms of combustion efficiency, wide lean burn-out limit, and pollutant emissions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Hydrogen Multijet and Flow Rate Assignment on the Combustion Flow Characteristics in a Jet-Stabilized Combustor

et al. 2021

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In this study, a hydrogen fuel jet-stabilized combustor is proposed, the combustion flow characteristics are numerically investigated under the conditions of three equivalence ratios (1, 0.37, and 0.22), and the effects of hydrogen flow rate assignment on the combustion flow are also analyzed. The results show that it is easier for the multijet scheme to form a full and stable vortex structure pair in the recirculation zone under lean conditions than the single-jet scheme, and it has a uniform reaction rate to form larger combustion zones, which makes it easier to achieve flame stabilization. The combustion efficiency of two fuel jet schemes is less than 65% when the equivalence ratio is 1, and complete combustion can be achieved under lean conditions; however, the outlet temperature distribution factor (OTDF) is basically the same. For the multijet scheme with an equivalence ratio of 0.22, as the flow rate assigned to the central jet decreases, a stable and full vortex pair is formed in the recirculation zone, and a high-temperature region can be formed under each working condition, but its area decreases with the central jet flow rate. The combustion efficiency in the recirculation zone increases first and then decreases as the central jet flow decreases, and the OTDF decreases with it.

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Characteristics study on a modified advanced vortex combustor

Cited by 16 publications

References 15 publications

Structure Optimization of Guide Vane on Combustion Performance of Premixed H2/Air in Micro Cavity-Combustor

Structure Optimization of Guide Vane on Combustion Performance of Premixed H2/Air in Micro Cavity-Combustor

Combustion Turbulence Flow in the Advanced Vortex Combustor with Built-In Obstacles

Effects of Hydrogen Multijet and Flow Rate Assignment on the Combustion Flow Characteristics in a Jet-Stabilized Combustor

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