Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves

Pinzón, Laura T.; Mathieu, Olivier; Mulvihill, Clayton R.; Schoegl, Ingmar; Petersen, Eric L.

doi:10.1016/j.combustflame.2019.01.036

Cited by 24 publications

(25 citation statements)

References 50 publications

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“…In the present work, the ArmacoMech 3.0 is employed as the starting detailed mechanism, which was developed and continuously updated for small fuels including the detailed mechanism for methanol . The detailed ArmacoMech 3.0 mechanism also showed better performance than did other mechanisms recently . To achieve a comprehensive skeletal mechanism, the skeletal reduction is performed over a wide range of conditions.…”

Section: Resultsmentioning

confidence: 99%

“…Ignition delay times at various pressures and equivalence ratios as a function of temperatures are presented in Figure . The experimental results were measured by shock tube facilitated by Pinzón et al The detailed AramcoMech 3.0 mechanism was also simulated, and its results are compared with the experimental results by Pinzón et al As shown by Figure , the skeletal mechanism derived in this work, the detailed AramcoMech 3.0, and the Li et al mechanism exhibit accuracy similar to that of the measured ignition delay times. The skeletal mechanism derived by Pichler and Nilsson shows slightly deviations at high‐pressure and low‐temperature conditions.…”

Section: Resultsmentioning

confidence: 99%

“…Ignition delay time at different conditions from simulation by using different mechanisms and shock tube experimental results…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, a detailed understanding of its combustion chemistry is necessary to facilitate its use in engines and better understand the combustion properties of large alcohols. In addition, during the oxidation of methanol, critical combustion intermediates including CH 2 O, CH 3 O, and CH 2 OH, which are also key components for all hydrocarbon fuels, can be easily formed . Thus, methanol combustion has been widely studied over the past few decades.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, methanol combustion has been widely studied over the past few decades. Global combustion properties including laminar flame speeds, ignition delay times, and species concentrations during methanol oxidation over a wide range of conditions have been measured by using relevant experimental facilities . Comprehensive chemical kinetic mechanisms for methanol combustion are also developed and validated against certain combustion conditions .…”

Section: Introductionmentioning

confidence: 99%

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Skeletal chemical kinetic mechanism generation for methanol combustion and systematic analysis on the ignition characteristics

Liang

Jia

Sun

et al. 2020

Asia-Pacific J Chem Eng

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A skeletal chemical kinetic mechanism for methanol combustion is developed based on a comprehensive detailed mechanism (AramcoMech 3.0), which consists of 581 species and 3,037 reactions. The systematic skeletal mechanism reduction methods are applied to the detailed mechanism to obtain a minimal skeletal mechanism. Systematic mechanism analysis including global reaction path and sensitivity analysis are performed to identify key reactions relevant to methanol oxidation. Species relevant to the combustion chemistry of methanol are analyzed through global reaction path and compared with other reduced mechanisms, which highlights the importance of maintaining realistic chemistry in skeletal mechanism. Brute-force sensitivity analysis and chemical explosive mode analysis are employed to analyze the ignition properties of methanol. The performance of the skeletal mechanism is validated against a wide range of pressures, temperatures, and equivalence ratios for ignition, species concentrations, and laminar flame speeds. This work not only presents a minimal skeletal mechanism for methanol combustion based on systematic mechanism reduction methods from very large detailed mechanisms but also provides insight into the chemical kinetics of methanol combustion. K E Y W O R D Scombustion kinetics, ignition, methanol, skeletal mechanism

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…Ignition delay time at different conditions from simulation by using different mechanisms and shock tube experimental results…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Skeletal chemical kinetic mechanism generation for methanol combustion and systematic analysis on the ignition characteristics

Liang

Jia

Sun

et al. 2020

Asia-Pacific J Chem Eng

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Laminar flame speed measurement and combustion mechanism optimization of methanol–air mixtures

Wang,

Zhang,

Zhong

2024

Int J of Chemical Kinetics

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Laminar flame speeds of methanol/air mixtures at 338–398 K are measured by the heat flux method, extending the range of equivalence ratio up to 2.1. And a new optimized methanol mechanism with 94 reactions is proposed by using the particle swarm algorithm, adjusting 20 Arrhenius pre‐exponential factors in their uncertainty domains. The optimized model is compared with eight methanol combustion mechanisms and experimental data published in recent years, covering a wide range of initial temperatures (298–1537 K), pressures (0.04–50 atm) and equivalence ratios (0.5–2.1). The results show that the optimized mechanism not only improves the accuracy of ignition delay time with rapid compression machine at low temperature but also moderately improve the description of laminar flame speed in lean and stoichiometric conditions. Meanwhile, the optimized model significantly enhances the prediction accuracy of CH3 and CH2O radical, and perfectly captures the evolution trend of HCO radical in laminar flat flame. Overall, the optimized mechanism provides the best overall description of the currently available measurements, leading to more accurate and comprehensive prediction of ignition delay time, laminar flame speed and species concentration.

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Ignition delay time correlations for $$\textrm{C}_1-\textrm{C}_4$$ primary alcohols: a multivariate and automatized approach

Gonini

Oliveira

Cancino

2023

J Braz. Soc. Mech. Sci. Eng.

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Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves

Cited by 24 publications

References 50 publications

Skeletal chemical kinetic mechanism generation for methanol combustion and systematic analysis on the ignition characteristics

Skeletal chemical kinetic mechanism generation for methanol combustion and systematic analysis on the ignition characteristics

Laminar flame speed measurement and combustion mechanism optimization of methanol–air mixtures

Ignition delay time correlations for $$\textrm{C}_1-\textrm{C}_4$$ primary alcohols: a multivariate and automatized approach

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