Laminar burning velocities and flame instabilities of butanol isomers–air mixtures

Gu, Xiaolei; Huang, Zuohua; Wu, Siyu; Li, Qianqian

doi:10.1016/j.combustflame.2010.07.003

Cited by 210 publications

(104 citation statements)

References 33 publications

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“…Meanwhile, the high speed camera was initiated to track the flame propagation. More details of the experimental setup and procedures can be found in previous studies [35][36][37]. The liquid fuels (C1-C5 primary alcohols and isooctane) involved in present study had purities over 99% and the specifications listed in Table 1.…”

Section: Experimental Apparatus and Data Derivationmentioning

confidence: 99%

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

Jin

Huang

2016

Energies

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Abstract:The laminar combustion characteristics of blends of isooctane and C1-C5 primary alcohols (i.e., methanol, ethanol, n-propanol, n-butanol and n-pentanol) were investigated using the spherical expanding flame methodology in a constant volume chamber at various equivalence ratios and volume fractions of alcohol. The stretch effect was removed using the nonlinear methodology. The results indicate that the laminar flame speeds of alcohol-isooctane blends increase monotonously with the increasing volume fraction of alcohol. Among the five alcohols, the addition of methanol is identified to be the most effective in enhancing laminar flame speed. The addition of ethanol results in an approximately equivalent laminar flame speed enhancement rate as those of n-propanol, n-butanol and n-pentanol at ratios of 0.8 and 1.5, and a higher rate at 1.0 and 1.2. An empirical correlation is provided to describe the laminar flame speed variation with the volume fraction of alcohol. Meanwhile, the laminar flame speed increases with the mass content of oxygen in the fuel blends. At the equivalence ratio of 0.8 and fixed oxygen content, similar laminar flame speeds are observed with different alcohols blended into isooctane. Nevertheless, with the increase of equivalence ratio, heavier alcohol-isooctane blends tend to exhibit higher values. Markstein lengths of alcohol-isooctane blends decrease with the addition of alcohol into isooctane at 0.8, 1.0 and 1.2, however they increase at 1.5. This is consistent with the behavior deduced from the Schlieren images.

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Section: Experimental Apparatus and Data Derivationmentioning

confidence: 99%

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

Jin

Huang

2016

Energies

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“…It should be noted here that n-butanol was selected for this study instead of its isomer iso-butanol because of the existence of some publications on the laminar burning velocity of n-butanol that could assist the analysis of the acquired data from the engine in direct comparison to the other fuels. However, iso-butanol is currently being studied in the same engine and results will be discussed in forthcoming publications in conjunction with some laminar burning velocity data for butanol's isomers that have been recently published [43].…”

Section: Fuelsmentioning

confidence: 99%

Characterisation of flame development with ethanol, butanol, iso-octane, gasoline and methane in a direct-injection spark-ignition engine

Aleiferis

Serras-Pereira

Richardson

2013

Fuel

136

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“…It should be noted here that n-Butanol (1-Butanol) was selected for this study instead of its isomer iso-Butanol because of the existence of some data on laminar burning velocity for this fuel that could assist parallel analysis of engine combustion data in direct comparison to the other fuels [11][12][13]. However, iso-Butanol is currently also being studied and results will be discussed in future publications (some laminar burning velocity data for Butanol's isomers have also been recently published [14]). Finally o-xylene, a heavier component of Gasoline with boiling temperature 144 °C (and octane rating closer to that of Gasoline's than other Xylene isomers) was also considered in the analysis of the current study and has been included in Fig.…”

Section: Fuelsmentioning

confidence: 99%

An analysis of spray development with iso-octane, n-pentane, gasoline, ethanol and n-butanol from a multi-hole injector under hot fuel conditions

Aleiferis

Romunde

2013

Fuel

231

117

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Laminar burning velocities and flame instabilities of butanol isomers–air mixtures

Cited by 210 publications

References 33 publications

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

Characterisation of flame development with ethanol, butanol, iso-octane, gasoline and methane in a direct-injection spark-ignition engine

An analysis of spray development with iso-octane, n-pentane, gasoline, ethanol and n-butanol from a multi-hole injector under hot fuel conditions

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