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A direct numerical simulation of cool-flame affected autoignition in diesel engine-relevant conditions
10.1016/j.proci.2016.08.043 2016-11-11 In diesel engines, combustion is initiated by a two-staged autoignition that includes both low- and high-temperature chemistry. The location and timing of both stages of autoignition are important parameters that influence the development and stabilisation of... |
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Highly resolved flamelet LES of a semi-industrial scale coal furnace
10.1016/j.proci.2016.08.089 2016-11-09 A highly resolved large eddy simulation (LES) of the semi-industrial IFRF coal furnace [1,2] employing the steady flamelet model is presented. The flamelet table is based on mixture fractions of volatile and char off-gases as well as on enthalpy and scalar di... |
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Influence of turbulent fluctuations on radiation heat transfer, NO and soot formation under ECN Spray A conditions
10.1016/j.proci.2016.06.173 2016-11-09 This paper investigates the influence of unresolved turbulent fluctuations on radiation heat transfer and formation of NO and soot in an n-dodecane spray flame (known as Spray A) under diesel engine conditions. The transported probability density function (TP... |
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Ignition and formaldehyde formation in dimethyl ether (DME) reacting spray under various EGR levels
10.1016/j.proci.2016.07.054 2016-11-08 As an alternative fuel to diesel in compression-ignition (CI) engines, dimethyl ether (DME) has gained interest in combustion research due to its high cetane number for fast ignition and ultra-low emission of particulate matter. In this study, ignition and im... |
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Adaptation of a dynamic wrinkling model to an engine configuration
10.1016/j.proci.2016.08.001 2016-10-18 The dynamic model proposed by Charlette et al. represents an interesting alternative to the FSD balance equation to predict the transient growth of a flame kernel. The dynamic wrinkling model coupled to the algebraic Flame Surface Density (FSD) model of Boger... |
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Autoignition studies of C5 isomers in a motored engine
10.1016/j.proci.2016.09.012 2016-10-17 This study explores the autoignition characteristics of three C5 isomers, namely n-pentane, 2-methylbutane (iso-pentane) and 2,2-dimethylpropane (neo-pentane). These measurements are intended to enhance understanding of C5 autoignition chemistry, and provide ... |
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Alternative fuels for internal combustion engines
10.1016/j.proci.2016.09.009 2016-10-13 This review paper covers potential alternative fuels for automotive engine application for both spark ignition (SI) and compression ignition (CI) engines. It also includes applications of alternative fuels in advanced combustion research applications. The rep... |
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Effects of equivalence ratio variations on turbulent flame speed in lean methane/air mixtures under lean-burn natural gas engine operating conditions
10.1016/j.proci.2016.09.011 2016-10-13 Direct numerical simulations (DNS) of turbulent premixed methane/air flames are carried out to investigate the effects of equivalence ratio on the turbulent flame speed in lean mixtures. Turbulent flames are simulated as statistically stationary following a L... |
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Ignition dynamics in an annular combustor for liquid spray and premixed gaseous injection
10.1016/j.proci.2016.08.008 2016-10-13 Ignition is of importance in many combustion applications and raises fundamental and practical issues. The light-round process corresponding to the flame spreading phase in the ignition of annular combustors is examined in this article by performing experimen... |
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Oxy-fuel conversion of sub-bituminous coal particles in fluidized bed and pulverized combustors
10.1016/j.proci.2016.08.075 2016-10-10 Oxy-fuel combustion in pulverized coal (PC) and fluidized bed (FB) boilers is being increasingly investigated due to its potential use for carbon dioxide capture. The combustion conditions in the two types of unit differ significantly because of fuel size, fu... |