2015
DOI: 10.1016/j.apenergy.2015.09.058
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Thermal field investigation under distributed combustion conditions

Abstract: Distributed Combustion has demonstrated significant performance gains, especially on combustion efficiency and near zero pollutants emission. Controlled mixture preparation between air, fuel and internal hot reactive gases prior to mixture ignition is a critical 10 requirement to achieve distributed combustion condition. Though distributed combustion have been extensively studied using a variety of geometries, heat loads and intensities, and fuels, limited information is available on the role of hot reactive g… Show more

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Cited by 38 publications
(18 citation statements)
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References 25 publications
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“…As the combustor transitioned from swirl flame to distributed combustion, the combustion noise was significantly reduced. The main frequency for this swirl flame was found to be ~500Hz and its harmonics [13]. The signal at this frequency disappeared upon transitioning to CDC with no other frequency detected.…”
Section: Reaction Zone and Velocity Fieldmentioning
confidence: 82%
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“…As the combustor transitioned from swirl flame to distributed combustion, the combustion noise was significantly reduced. The main frequency for this swirl flame was found to be ~500Hz and its harmonics [13]. The signal at this frequency disappeared upon transitioning to CDC with no other frequency detected.…”
Section: Reaction Zone and Velocity Fieldmentioning
confidence: 82%
“…Figure 8 shows the velocity profile and velocity fluctuations under the reacting confined N 2 /CO 2 diluted condition (case 5). It is to be noted that this flowfield represents distributed combustion as the oxygen concentration in the reactants fell below 15% [12,13]. The first thing to notice is that the central recirculation zone was strengthened further (as seen from the increased negative axial velocity, compared to that shown in Fig.…”
Section: Reacting Flow Fieldmentioning
confidence: 83%
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“…Buradaki temel neden de, biyogaz bünyesinde bulunan CO2'nin, yanıcı bileşeni daha fazla olan biyogazın reaksiyon hızını daha fazla yavaşlattığı, başka bir deyişle alevsiz yanma (dağıtılmış yanma) şartlarına daha fazla yaklaştırdığı sonucu ile açıklanabilir. Benzer sonuçlar, alevsiz ya da dağıtılmış yanma üzerinde yapılmış ve literatürde bulunan bazı çalışmalarda da tespit edilmiştir [16,17]. Yanma odası çıkışına doğru ise sıcaklık seviyeleri 800 K dolaylarında seyretmiştir.…”
Section: Sıcaklık Ve Emisyon Dağılımlarıunclassified
“…Lowering oxygen concentration demonstrated lower emission as compared to adding more air. In addition, distributed combustion was only evident in the lower oxygen concentration case while air dilution showed a consistent swirl structure [13]. In this paper, the impact of fuel type on the conditions at which distributed combustion zone is achieved is investigated.…”
Section: Introductionmentioning
confidence: 99%