Laminar flame speed of ethanol/ammonia blends–An experimental and kinetic study

Pelè, Ronan; Bréquigny, Pierre; Mounaïm‐Rousselle, Christine; Dayma, Guillaume; Halter, Fabien

doi:10.1016/j.jfueco.2022.100052

Cited by 28 publications

(4 citation statements)

References 38 publications

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“…This finding agrees with the aforementioned studies [16,32]. Pelé et al [36] investigated the combustion behavior of ammonia/ethanol blends and the LBV was measured in a CVCC. A similar LBV-ϕ correlation has been observed in both Wang et al [30] and Pelé et al [36] but with inconsistent temperature dependence.…”

Section: Laminar Burning Velocitysupporting

confidence: 90%

“…Pelé et al [36] investigated the combustion behavior of ammonia/ethanol blends and the LBV was measured in a CVCC. A similar LBV-ϕ correlation has been observed in both Wang et al [30] and Pelé et al [36] but with inconsistent temperature dependence. Pelé et al [36] claimed this discrepancy was due to the different facility effects between HF and CVCC methods.…”

Section: Laminar Burning Velocitymentioning

confidence: 99%

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Recent Progress on Combustion Characteristics of Ammonia-Based Fuel Blends and Their Potential in Internal Combustion Engines

Zhu

Shu

2023

IJAMM

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Review Recent Progress on Combustion Characteristics of Ammonia-Based Fuel Blends and Their Potential in Internal Combustion Engines Denghao Zhu , and Bo Shu * Department of Physical Chemistry, Physikalisch-Technische Bundesanstalt, Bundesallee 100, DE-38116 Braunschweig, Germany * Correspondence: bo.shu@ptb.de Received: 21 November 2022 Accepted: 22 December 2022 Published: 18 January 2023 Abstract: Ammonia has recently attracted numerous attentions from researchers and policy makers as promising energy and hydrogen carrier for mitigating the carbon footprints in the energy sector. The mature infrastructure for the production, storage, and transportation of ammonia allows a quick role of ammonia in energy systems. By applying green hydrogen and renewable energies, green ammonia can be produced, which makes ammonia even more attractive. Prior to the commercial use of ammonia for large-scale energy systems, e.g., internal combustion engines and stationary gas turbines, a fundamental understanding of the ignition and combustion behaviors of ammonia is essential. In the past decades, a lot of studies on ammonia combustion have been published. Those studies covered broad topics including experimental and numerical investigations which were either fundamental or practical oriented. To continuously follow state-of-the-art and to provide a brief overview of the most recent research on ammonia combustion so that others can easily identify the most relevant work, this review summarizes the recent progress on combustion characteristics of ammonia and ammonia fuel blends as well as their potential use in internal combustion engines. Combining the advantages and drawbacks identified in both fundamental and practical studies, a clearer road map for ammonia application is given.

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Section: Laminar Burning Velocitysupporting

confidence: 90%

Section: Laminar Burning Velocitymentioning

confidence: 99%

Recent Progress on Combustion Characteristics of Ammonia-Based Fuel Blends and Their Potential in Internal Combustion Engines

Zhu

Shu

2023

IJAMM

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“…Energies 2023, 16 suggested to achieve the desired physical and chemical properties of ammonia for its use in combustion devices [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Study of NH2 Radical Reactions with Propane and Its Kinetic Implications in NH3-Propane Blends’ Oxidation

et al. 2023

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The reaction of NH2 radicals with C3H8 is crucial for understanding the combustion behavior of NH3/C3H8 blends. In this study, we investigated the temperature dependence of the rate coefficients for the hydrogen abstraction reactions of C3H8 by NH2 radicals using high-level theoretical approaches. The potential energy surface was constructed at the CCSD(T)/cc-pV(T, Q)//M06-2X/aug-cc-pVTZ level of theory, and the rate coefficients were computed using conventional transition state theory, incorporating the corrections for quantum tunneling and hindered internal rotors (HIR). The computed rate coefficients showed a strong curvature in the Arrhenius behavior, capturing the experimental literature data well at low temperatures. However, at T > 1500 K, the theory severely overpredicted the experimental data. The available theoretical studies did not align with the experiment at high temperatures, and the possible reasons for this discrepancy are discussed. At 300 K, the reaction of NH2 with C3H8 predominantly occurs at the secondary C-H site, which accounts for approximately 95% of the total reaction flux. However, the hydrogen abstraction reaction at the primary C-H site becomes the dominant reaction above 1700 K. A composite kinetic model was built, which incorporated the computed rate coefficients for NH2 + C3H8 reactions. The importance of NH2 + C3H8 reactions in predicting the combustion behavior of NH3/C3H8 blends was demonstrated by kinetic modeling.

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“…Thus, the ammonia-air combustion performance by blending it either with dimethyl or diethyl ether also exhibits better results than that of pure ammonia [75][76][77][78][79][80][81]. Ammonia/syngas blends have also been evaluated with good results [82][83][84], as well as ammonia/methanol and ammonia/ethanol blends [85][86][87]. Even several blends of ammonia with different organic compounds, e.g., methylcyclohexane and toluene [88], dimethoxymethane [89], n-heptane and isooctane [90], or more complex gas mixtures, such as hydrogen, methane and propane [91], NH 3 /C 3 H 8 /air [92], NH 3 /CH 4 /H 2 S [63] and CH 4 /H 2 /NH 3 -air mixtures [93,94], have been used.…”

Section: Ammonia As An Electricity Generator In Combined Cycle Gas Tu...mentioning

confidence: 99%

Current Research on Green Ammonia (NH3) as a Potential Vector Energy for Power Storage and Engine Fuels: A Review

et al. 2023

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Considering the renewable electricity production using sustainable technologies, such as solar photovoltaics or wind turbines, it is essential to have systems that allow for storing the energy produced during the periods of lower consumption as well as the energy transportation through the distribution network. Despite hydrogen being considered a good candidate, it presents several problems related to its extremely low density, which requires the use of very high pressures to store it. In addition, its energy density in volumetric terms is still clearly lower than that of most liquid fuels. These facts have led to the consideration of ammonia as an alternative compound for energy storage or as a carrier. In this sense, this review deals with the evaluation of using green ammonia for different energetic purposes, such as an energy carrier vector, an electricity generator and E-fuel. In addition, this study has addressed the latest studies that propose the use of nitrogen-derived compounds, i.e., urea, hydrazine, ammonium nitrate, etc., as alternative fuels. In this study, the possibility of using other nitrogen-derived compounds, i.e., an update of the ecosystem surrounding green ammonia, has been assessed, from production to consumption, including storage, transportation, etc. Additionally, the future challenges in achieving a technical and economically viable energy transition have been determined.

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Laminar flame speed of ethanol/ammonia blends–An experimental and kinetic study

Cited by 28 publications

References 38 publications

Recent Progress on Combustion Characteristics of Ammonia-Based Fuel Blends and Their Potential in Internal Combustion Engines

Recent Progress on Combustion Characteristics of Ammonia-Based Fuel Blends and Their Potential in Internal Combustion Engines

A Theoretical Study of NH2 Radical Reactions with Propane and Its Kinetic Implications in NH3-Propane Blends’ Oxidation

Current Research on Green Ammonia (NH3) as a Potential Vector Energy for Power Storage and Engine Fuels: A Review

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