Experimental and modeling study of the effects of adding oxygenated fuels to premixed n-heptane flames

Comprehensive kinetic modeling and experimental study of a fuel-rich, premixed n-heptane flame

“…In the experimental part of the present study, quantitative species measurements were conducted in a fuel-rich, premixed burner-stabilized low-pressure flame, in which significantly more species were quantified as in similar studies before [2][3][4][5][6][7][8]. A special emphasis was placed on the measurement of mole fraction profiles of important intermediates of PAH and soot formation pathways.…”

“…Recently, stoichiometric low-pressure flames were investigated using molecular-beam mass spectrometry with synchrotron radiation for photoionization (PI-MBMS) [5][6][7], in these studies, the mole fraction profiles including many oxygenated species were reported. The influence of blending n-heptane with oxygenated fuels in premixed low-pressure flames (/ = 1.6) was studied by Chen et al [8].…”

An experimental and modeling study of the ignition of dimethyl carbonate in shock tubes and rapid compression machine

“…9 To contribute to the development of detailed chemical kinetic 10 models to describe the combustion characteristics of DMC, a thor- 11 ough understanding of its combustion chemistry is needed. These 12 chemical kinetic models can be used in conjunction with compu-13 tational fluid dynamics (CFD) codes, with the necessary simplifi- 14 cations, to simulate the physical and chemical processes in en- 15 gines, leading to optimal engine efficiency with minimal emissions. 16 in the DMC flame, and the presence of oxygen on the central car- 23 bon in DMC favors breakage of the O-CO bond which results in 24 very low levels of formation of methane, ethane, ethylene, and 25 acetylene.…”

“…32 Chen et al . [12] investigated the oxidation of 33 n-heptane/DMC/O 2 /Ar mixtures in a laminar pre-mixed low-34 pressure (30 Torr) flame, at an equivalence ratio of 1.16, using 35 synchrotron photoionization and molecular-beam mass spectrom- 36 etry (PI-MBMS) techniques. Measured and simulated mole fraction 37 profiles of major and intermediate species were compared.…”

Experimental investigation on the self-ignition behaviour of coal dust accumulations in oxy-fuel combustion system

“…Qiao et al [24] measured the ignition temperatures of coal dust in a mesh reactor under various gas compositions, and found the influence of CO 2 was much smaller than that of O 2 mole fraction. Chen et al [25] reviewed recent studies on oxy-fuel combustion where the ignition and flame temperatures in O 2 /CO 2 ambient with O 2 mole fractions of 25-35% were found to be similar to those in air. By far, neither the self-ignition of coal dust in the O 2 -rich ambient nor in the O 2 /CO 2 ambient has not been studied in bench-scale experiments.…”