Autoignition and flame spectroscopy of propane mixture in a rapid compression machine

Goyal, Tushar; Trivedi, Divyesh; Abianeh, O. Samimi

doi:10.1016/j.fuel.2018.06.022

Cited by 19 publications

(19 citation statements)

References 29 publications

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“…2 for the quantity τ ign for different values of coefficient φ converge in the temperature range ∼1000 K. Figure 4 shows the data from [22] obtained in the high-temperature region at a pressure of p = 20 atm and the values of coefficient φ = 0.5 and 1.0, as well as the data of this study normalized to the same pressure. For comparison, the low-temperature data from [32] are given at the same pressure and excess fuel coefficients. There is a clear tendency towards a change in dependence.…”

Section: Resultsmentioning

confidence: 99%

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High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

Козлов

Gerasimov

Levashov

et al. 2021

Russ. J. Phys. Chem. B

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The ignition delay times are measured in propane-oxygenl mixtures strongly diluted with argon. The experiments are carried out in a shock tube behind the front of the reflected shock wave in the temperature range T = 1250-1770 K at pressure p = 30 atm and the following values of the excess fuel ratios: φ = 0.5, 1.0, and 2.0. It is shown that, in the region of the studied temperatures, the ignition delay time in propane increases with an increase in φ. The obtained data are compared with the results of other measurements, which shows that at low temperatures (T ≤ 1000 K) the dependence of the ignition delay time on φ has the opposite character.

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Section: Resultsmentioning

confidence: 99%

“…4. Dependence of the ignition delay time on the excess fuel ratio φ = 0.5 (light points) and 1.0 (dark points) in the high-temperature and low-temperature regions at p = 20 atm: points, experimental data from [22] (triangles), [32] (squares), and this study (circles); curves approximating lines.…”

Section: Fundingmentioning

confidence: 91%

High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

Козлов

Gerasimov

Levashov

et al. 2021

Russ. J. Phys. Chem. B

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“…The gas pressure during the compression and post-compression periods is measured using a Kistler piezoelectric pressure transducer (6045B) paired with a Kistler charge amplifier (5018). The measured pressures with this setup have an uncertainty of 0.56%, which include uncertainty in measurements (0.42%), linearity (0.3%), and thermal shock error (0.2%), as discussed in previous works. ,− An uncertainty of approximately ±0.1 ms is associated with the timing of the end of compression (EOC).…”

Section: Experimental Setupmentioning

confidence: 91%

“…The measurements were performed using the RCM of Wayne State University’s Combustion Physics Laboratory (CPL), as shown schematically in Figure . The details of the RCM can be found in previous works, − with a brief description provided herein.…”

Section: Experimental Setupmentioning

confidence: 99%

Measurement and Simulation of n-Heptane Mixture Autoignition

Molana

Goyal

Abianeh

2021

Ind. Eng. Chem. Res.

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The autoignition of n-heptane mixtures was studied over a wide range of conditions using a rapid compression machine (RCM). The experiments were performed using several n-heptane mixtures at average compressed gas pressures of 6.55 and 13.35 bar, compressed gas temperatures ranging from 605 to 757 K, equivalence ratio of one, and two inert dilution ratios of 79, and 84%. Two detailed kinetic mechanisms (LLNL and NUI Galway kinetic models) were used to simulate the measured data. Three-dimensional (3-D) and zero-dimensional (0-D) computational fluid dynamics models were used to simulate the autoignition at the studied conditions. The mechanism models performed well using 84% diluted mixture at both pressures, while 79% dilution performed well only at lower pressure. The NUI Galway mechanism model predicts a longer ignition delay with respect to the measured data at most of the studied conditions. The modeled ignition delays are longer using 3-D model with respect to the 0-D model, which is due to the simulation of the flow pattern inside the combustion chamber. However, the difference between the two models becomes smaller at higher gas temperatures. The results show that the 3-D model is necessary to simulate the n-heptane mixture ignition delay and validate the kinetic model at the RCM low-temperature conditions. In addition, some of the measured ignition delays were compared with the shock tube data, and they are slightly shorter than the shock tube data.

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“…The uncertainty of this system is approximately 0.56%, which includes the uncertainty in measurements (0.42%), linearity (0.3%), and thermal shock error (0.2%). Further details of the RCM can be found in previous work performed by the same research group. ,,− …”

Section: Methodsmentioning

confidence: 99%

Rapid Compression Machine Ignition Delay Time Measurements under Near-Constant Pressure Conditions

2020

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This work presents and validates a new methodology that determines the adiabatic ignition delay of a hydrocarbon-based fuel using several nonadiabatic ignition delay measurements. The new methodology was developed and validated in a numerical modeling and then applied to propane autoignition experiments to determine the adiabatic ignition delay of the fuel, the so-called measured adiabatic ignition delay. Propane ignition delays were measured in a wide range of low to intermediate gas temperatures ranging from 769 to 952 K, at pressures of 23–30 bar, and at equivalence ratios of approximately 0.5 and 1.0 for a rapid compression machine (RCM). Application of the new methodology removed the effect of heat transfer on measured ignition delay, thus reporting the adiabatic ignition delay free from facility heat-transfer effects. The measured adiabatic ignition delays from the RCM are close to the ones measured by a shock tube.

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Autoignition and flame spectroscopy of propane mixture in a rapid compression machine

Cited by 19 publications

References 29 publications

High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

Measurement and Simulation of n-Heptane Mixture Autoignition

Rapid Compression Machine Ignition Delay Time Measurements under Near-Constant Pressure Conditions

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