Discrepancies between shock tube and rapid compression machine ignition at low temperatures and high pressures

Petersen, Eric L.; Lamnaouer, Mouna; Vries, J. de; Curran, Henry J.; Simmie, John M.; Fikri, Mustapha; Schulz, Christof; Bourque, Gilles

doi:10.1007/978-3-540-85168-4_119

Cited by 29 publications

(25 citation statements)

References 22 publications

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“…At temperatures below approximately 950 K, the adiabatic simulations predict faster ignition times compared to the RCM ones, due to the lack of heat loss after compression, but at temperatures above 950 K, the RCM simulation is slightly faster than the adiabatic, constant volume case because it includes 28 reaction during compression, and thus allows the chemistry to develop. For the shock tube results [55,56] shown in Fig. 12, it can be seen that, at temperatures below approximately 1100 K, the measured ignition delay times are considerably faster than those predicted using an adiabatic, constant volume simulation.…”

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 88%

“…It can be seen that at 850 K (1000/T ≈ 1.15), there is almost two orders of magnitude difference between the ignition delay times measured in the RCM [54] and those measured in the shock tube by Herzler et al [55]. This problem has been discussed in the work of Petersen et al [56] and also in the review by Davidson and coworkers [57,58]. The discrepancy can be ascribed to differences in facility dependent effects.…”

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 91%

“…12 also shows a simulation assuming a dP/dt of 7%/ms and demonstrates that this assumption agrees better with the lower temperature shock tube ignition delay data compared to the adiabatic, constant volume simulations. However, it still does not capture the experimental data, and it is clear in the publication by Petersen et al [56] that the pressure rise prior to ignition is not a constant dP/dt but is instead a much greater pressure rise prior to fuel autoignition due to some unknown phenomenon. Thus, by comparing each experiment to the correctly modeled simulations, it is found that the agreement with the model is reasonable, even though the direct agreement between the measured ignition delays is very poor.…”

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 98%

“…To illustrate this point, Fig. 12 compares ignition delay times measured in an RCM by Gallagher et al [54] for a propane/'air' mixture at =0.5, and P C =30 atm together with shock tube data taken under similar conditions in two different shock tubes, one by Herzler et al [55] and the other by Petersen et al [56]. It can be seen that at 850 K (1000/T ≈ 1.15), there is almost two orders of magnitude difference between the ignition delay times measured in the RCM [54] and those measured in the shock tube by Herzler et al [55].…”

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 99%

“…[55] in N 2 , ▲ [55] in Ar, ▼ [56] and comparison with a traditional constant energy and volume (or density) simulation and with a simulation using dP/dt =7%/ms, all using the mechanism of Gallagher et al [54]. [78].…”

Section: Concluding Remarks and Future Directionsmentioning

confidence: 99%

See 4 more Smart Citations

Using rapid compression machines for chemical kinetics studies

Sung¹,

Curran²

2014

Progress in Energy and Combustion Science

262

127

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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.

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Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 88%

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 91%

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 98%

Section: Comparison Of Shock Tube and Rcm Datamentioning

confidence: 99%

Section: Concluding Remarks and Future Directionsmentioning

confidence: 99%

See 3 more Smart Citations

Using rapid compression machines for chemical kinetics studies

Sung¹,

Curran²

2014

Progress in Energy and Combustion Science

262

127

View full text Add to dashboard Cite

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Influence of the double bond position in combustion chemistry of methyl butene isomers: A shock tube and laser absorption study

Arafin

Laich

Ninnemann

et al. 2020

Int J of Chemical Kinetics

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Shock tube experiments have been carried out on 2-methyl-1-butene (2M1B), 2-methyl-2-butene (2M2B), and 3-methyl-1-butene (3M1B)-the three isomers of methyl butene compound. Carbon monoxide (CO) time-histories and ignition delay times are obtained behind reflected shockwaves over the temperature range of 1350-1630 K and pressures of 8.3-10.5 atm with stoichiometric mixtures of 0.075% fuel in O 2 /Ar. Comparative ignition study reveals that 3M1B ignites significantly faster than the other two isomers, while 2M1B dissociates earlier but ignites later than 2M2B. Possible mechanisms for this behavior are discussed with ignition delay time sensitivity and reaction path analysis. In addition, timeresolved CO measurements are compared with three different reaction mechanisms from the literature. Sensitivity analyses have been carried out to identify important reactions that need attention to accurately predict the chemistry of these isomers. Further investigation into the rates of unimolecular fuel decomposition reactions and C 3 H 3 + O 2 = CH 2 CO + HCO reaction are suggested based on the current investigation.

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Measuring the Adiabatic Ignition Delay of n-Pentane Mixture using Rapid Compression Machine

Piehl

Abianeh

2020

J. Therm. Sci.

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Discrepancies between shock tube and rapid compression machine ignition at low temperatures and high pressures

Cited by 29 publications

References 22 publications

Using rapid compression machines for chemical kinetics studies

Using rapid compression machines for chemical kinetics studies

Influence of the double bond position in combustion chemistry of methyl butene isomers: A shock tube and laser absorption study

Measuring the Adiabatic Ignition Delay of n-Pentane Mixture using Rapid Compression Machine

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