Experimental and modeling study of oxidation and autoignition of butane at high pressure

Minetti, R.; Ribaucour, Marc; Carlier, Matthieu; Fittschen, C.; Sochet, L. R.

doi:10.1016/0010-2180(94)90009-4

Cited by 136 publications

(75 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The core gas volume shrinks with time and vanishes when the reaction time becomes sufficiently long. Temperature at TDC was measured in the center of the rapid compression machine using laser Rayleigh scattering [17] and agrees well with theoretical adiabatic core gas temperatures [18] calculated from the initial temperature, pressure at TDC, and temperature-dependent specific heats of the reactants. Temperature measurements by thermocouple show that the core gas occupied about 80% of the chamber [19].…”

Section: Resultssupporting

confidence: 64%

See 1 more Smart Citation

Ignition of isomers of pentane: An experimental and kinetic modeling study

Ribaucour

Minetti

Sochet

et al. 2000

Proceedings of the Combustion Institute

Self Cite

101

View full text Add to dashboard Cite

Experiments in a rapid compression machine were used to examine the influences of variations in fuel molecular structure on the autoignition of isomers of pentane. Autoignition of stoichiometric mixtures of the three isomers of pentane were studied at compressed gas initial temperatures between 640 K and 900 K and at precompression pressures of 300 and 400 torr. Numerical simulations of the same experiments were carried out using a detailed chemical kinetic reaction mechanism. The results are interpreted in terms of a low-temperature oxidation mechanism involving addition of molecular oxygen to alkyl and hydroperoxyalkyl radicals. Results indicate that in most cases, the reactive gases experience a two-stage autoignition. The first stage follows a low-temperature alkylperoxy radical isomerization pathway that is effectively quenched when the temperature reaches a level where dissociation reactions of alkylperoxy and hydroperoxyalkylperoxy radicals are more rapid than the reverse addition steps. The second stage is controlled by the onset of dissociation of hydrogen peroxide. At the highest compression temperatures achieved, little or no first-stage ignition is observed. Particular attention is given to the influence of heat transfer and the importance of regions of variable temperature within the compressed gas volume. Implications of this work on practical ignition problems are discussed.

show abstract

Section: Resultssupporting

confidence: 64%

“…The rapid compression machine (RCM) is used frequently to study kinetics of hydrocarbon autoignition [1][2][3][4][5][6][7][8], since reactive gas temperatures are similar to those in automotive engines during diesel ignition and end-gas autoignition in spark-ignition engines.…”

Section: Introductionmentioning

confidence: 99%

Ignition of isomers of pentane: An experimental and kinetic modeling study

Ribaucour

Minetti

Sochet

et al. 2000

Proceedings of the Combustion Institute

Self Cite

101

View full text Add to dashboard Cite

show abstract

“…In this intermediate temperature region, IDT decreases with decreasing temperature. This behavior, wherein a negative temperature coefficient is displayed at intermediate temperatures, has been observed for various hydrocarbons (Minetti et al, 1994;Cadman et al, 2000). This phenomenon is attributed to the transition from a low-to high-temperature kinetic mechanism.…”

Section: Experiments With Modified Injectorsupporting

confidence: 52%

Effect of Materials on the Autoignition of Cyclopentane

Guillen¹,

Walls²

2012

Energy Technology 2012

View full text Add to dashboard Cite

“…In addition, the existence of a thermodynamically well-defined 19 core region of the compressed gas is essential. In Eq.…”

Section: Facility Effect and Heat Loss Characterizationmentioning

confidence: 99%

“…Since the piston decelerates at a constant rate, the impact velocity at the end of compression is not large. Alternative stopping mechanism designs also included using the shape of a cam to stop the piston [19] and the interference fit of a polymeric piston in the bore of the reaction chamber in a free-piston rapid compression facility [17].…”

Section: Introductionmentioning

confidence: 99%

Using rapid compression machines for chemical kinetics studies

Sung¹,

Curran²

2014

Progress in Energy and Combustion Science

265

127

View full text Add to dashboard Cite

Rapid compression machines (RCMs) are used to simulate a single compression stroke of an internal combustion engine without some of the complicated swirl bowl geometry, cycle-to-cycle variation, residual gas, and other complications associated with engine operating conditions. RCMs are primarily used to measure ignition delay times as a function of temperature, pressure, and fuel/oxygen/diluent ratio; further they can be equipped with diagnostics to determine the temperature and flow fields inside the reaction chamber and to measure the concentrations of reactant, intermediate, and product species produced during combustion. This paper first discusses the operational principles and design features of RCMs, including the use of creviced pistons, which is an important feature in order to suppress the boundary layer, preventing it from becoming entrained into the reaction chamber via a roll-up vortex. The paper then discusses methods by which experiments performed in RCMs are interpreted and simulated. Furthermore, differences in measured ignition delays from RCMs and shock tube facilities are discussed, with the apparent initial gross disagreement being explained by facility effects in both types of experiments. Finally, future directions for using RCMs in chemical kinetics studies are also discussed.

show abstract

Experimental and modeling study of oxidation and autoignition of butane at high pressure

Cited by 136 publications

References 10 publications

Ignition of isomers of pentane: An experimental and kinetic modeling study

Ignition of isomers of pentane: An experimental and kinetic modeling study

Effect of Materials on the Autoignition of Cyclopentane

Using rapid compression machines for chemical kinetics studies

Contact Info

Product

Resources

About