Effect of fuel mixture on moderate and intense low oxygen dilution combustion

Dally, Bassam B.; Riesmeier, Elmar; Peters, N.

doi:10.1016/j.combustflame.2004.02.011

Cited by 223 publications

(75 citation statements)

References 13 publications

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“…Their investigation was carried out by examining the influence of K v on the flow field, reaction temperature and NO x emissions. Dally et al [13,14,20,21] found that the initial fuel dilution can increase jet scalar dissipation rate, and further influence flame front structure and combustion reaction, and hence decrease the reaction peak temperature. With respect to the fuel-air jet momentum ratio, Szegö et al [20] found that for their furnace and burner configuration, the MILD combustion can be achieved when the fuel-air jet momentum ratio is greater than 0.006, and when the mixing junction point of the fuel and air jets is greater than 260 mm.…”

Section: The Origin Of Mild Combustion Technologymentioning

confidence: 98%

“…National and international R&D of MILD combustion Investigators from Germany [2,[23][24][25][26][27] and Japan [5,6,28] appeared to first conduct the research and development (R&D) on the MILD combustion, followed by those from Sweden [29][30][31][32][33][34][35], Italy [4,27,[36][37][38][39][40][41][42], the Netherlands [43] , France, Australia [12][13][14][15][16][17][18][19][20][21][22], the United States [44,45] and China [8][9][10][11][12][46][47][48][49][50][51]…”

Section: The Origin Of Mild Combustion Technologymentioning

confidence: 99%

“…Firstly, a brief introduction is made to the history and current status of MILD combustion technology. Then the recent relevant R&D is reviewed [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Following this, the limitation of the current industrial systems of the technology is analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Progress and recent trend in MILD combustion

Dally

et al. 2011

Sci. China Technol. Sci.

146

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Moderate or intense low oxygen dilution (MILD) combustion plays a significant role in the mitigation of combustion-generated pollutants and greenhouse gases whilst meeting thermal efficiency needs. However, due to the lack of the fundamental knowledge on this combustion, there is a misconception that MILD combustion should be established by high preheating of the air, which has limited its application. Our research and development on this combustion has been performed for several years. We have found that the requirements for establishing the MILD combustion are more relaxed than previously. It is also revealed that this combustion of different type, i.e., non-premixed, partially premixed and fully premixed, can be achieved by firing various fuels (i.e., gaseous, liquid and solid fuels). It is suggested that the application of the MILD combustion can be expanded significantly. The present review summarizes the progress and recent trend made in the R&D of this combustion and recommends further fundamental studies for improving our knowledge and widening its applications. high temperature air combustion, flameless oxidation, flameless combustion, oxy-fuel combustion Citation: Li P F, Mi J C, Dally B B, et al. Progress and recent trend in MILD combustion.

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Section: The Origin Of Mild Combustion Technologymentioning

confidence: 98%

Section: The Origin Of Mild Combustion Technologymentioning

confidence: 99%

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Progress and recent trend in MILD combustion

Dally

et al. 2011

Sci. China Technol. Sci.

146

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“…Over the past few decades, MILD combustion technology has been implemented at full scale in various industrial sectors [6] and tested at pilot scale in other applications [7][8][9][10] and for other fuel types [11]. Nevertheless, despite considerable industrial success, important aspects of MILD combustion remain unknown.…”

Section: Introductionmentioning

confidence: 99%

Scaling of NOx emissions from a laboratory-scale mild combustion furnace

Szego

Dally

Nathan

2008

Combustion and Flame

Self Cite

148

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“…The specific feature of HiTAC is that the highly preheated air mixes with burnt products in the furnace before it reacts with the fuel issued separately into the furnace, and it has been held that combustion of low Damkohler number takes place in HiTAC due to the enhanced mixing and prolonged reaction-time in low oxygen concentration condition resulting in the "Well-Stirred Reaction" regime [2]. The database on combustion characteristics and flame structure in low oxygen concentration atmosphere has not been collected in the past, particularly in high temperature range near auto-ignition temperature of the fuel, and several basic researches on HiTAC have been carried out recently paying an attention on the fine-structure of flames [3][4][5][6][7][8][9]. As a result, new knowledge is available on "non-premixed combustion" of HiTAC.…”

Section: Introductionmentioning

confidence: 99%

Development of rapid mixing fuel nozzle for premixed combustion

et al. 2009

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Combustion in high-preheat and low oxygen concentration atmosphere is one of the attractive measures to reduce nitric oxide emission as well as greenhouse gases from combustion devices, and it is expected to be a key technology for the industrial applications in heating devices and furnaces. Before proceeding to the practical applications, we need to elucidate combustion characteristics of non-premixed and premixed flames in high-preheat and low oxygen concentration conditions from scientific point of view. For the purpose, we have developed a special mixing nozzle to create a homogeneous mixture of fuel and air by rapid mixing, and applied this rapidmixing nozzle to a Bunsen-type burner to observe combustion characteristics of the rapid-mixture. As a result, the combustion of rapid-mixture exhibited the same flame structure and combustion characteristics as the perfectly prepared premixed flame, even though the mixing time of the rapid-mixing nozzle was extremely short as a few milliseconds. Therefore, the rapid-mixing nozzle in this paper can be used to create preheated premixed flames as far as the mixing time is shorter than the ignition delay time of the fuel.

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Effect of fuel mixture on moderate and intense low oxygen dilution combustion

Cited by 223 publications

References 13 publications

Progress and recent trend in MILD combustion

Progress and recent trend in MILD combustion

Scaling of NOx emissions from a laboratory-scale mild combustion furnace

Development of rapid mixing fuel nozzle for premixed combustion

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