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This article presents chemical analysis of jet fuel (Jet A-1) heteroatomic fuel components with identification of an antioxidant lichen substance in methanol extracted fuel samples. Thermal stressing of jet fuel produces soluble…

化学物理 · 物理学 2018-05-31 Pooja Sharma

Utilization of liquid fuels is crucial to enabling commercialization of rotating detonation engines in the near future. In this study, Eulerian-Lagrangian simulations are conducted for rotating detonative combustion with dilute n-heptane…

流体动力学 · 物理学 2022-02-15 Shan Jin , Chao Xu , Hongtao Zheng , Huangwei Zhang

39 detailed mechanisms for combustion of hydrogen, carbon monoxide and methanol are investigated using ReactionKinetics, a Mathematica based package. The obtained results in most cases do not depend on the choice of reaction rate…

化学物理 · 物理学 2013-08-06 J. Tóth , A. L. Nagy , I. Zsély

We have carried out an investigation of the chemical evolution of gas in different carbon-rich circumstellar environments. Previous studies have tended to invoke terrestrial flame chemistries, based on acetylene (C2H2) combustion to model…

星系天体物理 · 物理学 2015-06-15 Harpreet Dhanoa , Jonathan M. C. Rawlings

We present the observational result of a glycine precursor, methylamine (CH$_3$NH$_2$), together with methanol (CH$_3$OH) and methanimine (CH$_2$NH) towards high-mass star-forming regions, NGC6334I, G10.47+0.03, G31.41+0.3, and W51~e1/e2…

太阳与恒星天体物理 · 物理学 2019-09-04 Taiki Suzuki , Liton Majumdar , Kazuki Tokuda , Harumi Minamoto , Masatoshi Ohishi , Masao Saito , Tomoya Hirota , Hideko Nomura , Yoko Oya

The recent wave of detections of interstellar aromatic molecules has sparked interest in the chemical behavior of aromatic molecules under astrophysical conditions. In most cases, these detections have been made through chemically related…

星系天体物理 · 物理学 2021-07-07 April M. Miksch , Annalena Riffelt , Ricardo Oliveira , Johannes Kästner , Germán Molpeceres

An experimental study of methane, propane and dimethyl ether (DME) pre-mixed flames propagating in a quasi-two-dimensional Hele-Shaw cell placed horizontally is presented in this paper. The flames are ignited at the open end of the…

An a priori analysis of a DNS database of turbulent lean premixed methane flames is presented considering the relative effects of turbulence and LES filtering, along with a potential modelling approach for LES with finite-rate chemistry.…

流体动力学 · 物理学 2018-06-27 A J Aspden , N Zettervall , C Fureby

We consider six isomeric groups (CH3N, CH5N, C2H5N, C2H7N, C3H7N and C3H9N) to review the presence of amines and aldimines within the interstellar medium (ISM). Each of these groups contains at least one aldimine or amine. Methanimine…

星系天体物理 · 物理学 2023-03-14 Milan Sil , Prasanta Gorai , Ankan Das , Bratati Bhat , Emmanuel E. Etim , Sandip K. Chakrabarti

Complex organic molecules, such as propylene (CH3CHCH2), are detected in molecular clouds (such as TMC1) with high fractional abundances (~2.10^{-9}, relative to hydrogen) that cannot be explained by gas-phase chemical reactions under…

星系天体物理 · 物理学 2015-06-16 J. M. C. Rawlings , D. A. Williams , S. Viti , C. Cecchi-Pestellini

Experimental and theoretical studies are presented on the reactivity of methanimine and aminomethylene cations with ethene. Selective isomer generation is performed via dissociative photoionization of suitable neutral precursors and…

Exploring the impact of alcohol additives on combustion and pyrolysis of ammonia/methane is of great importance in the pursuit of sustainable energy technologies. This work employs Reactive Force Field (ReaxFF) molecular dynamics (MD)…

化学物理 · 物理学 2025-07-10 Amirali Shateri , Zhiyin Yang , Jianfei Xie , Nasser Sherkat

Recent laboratory experiments have demonstrated that, even though contribution from other reaction channels cannot be neglected, unsaturated hydrocarbons easily break their multiple C-C bonds to form CO after their interactions with atomic…

太阳与恒星天体物理 · 物理学 2015-06-15 Angela Occhiogrosso , Serena Viti , Nadia Balucani

Few-layer graphene (FLG) is grown on copper and nickel substrates at high rates using a novel flame synthesis method in open-atmosphere environments. Transmittance and resistance properties of the transferred films are similar to those…

The possibilities to fractionate copolymers with respect to their chemical composition on a preparative scale by means of the establishment of liquid/liquid phase equilibria were studied for random copolymers of styrene and acrylonitrile…

材料科学 · 物理学 2009-11-10 Stefan Loske , Anja Schneider , Bernhard A. Wolf

The low temperature reaction between CN and benzene (C$_6$H$_6$) is of significant interest in the astrochemical community due to the recent detection of benzonitrile, the first aromatic molecule identified in the interstellar medium (ISM)…

星系天体物理 · 物理学 2020-03-25 Ilsa R. Cooke , Divita Gupta , Joseph P. Messinger , Ian R. Sims

Autoignition delay times have been measured in a rapid compression machine at Lille at temperatures after compression from 630 to 840 K, pressures from 8 to 14 bar, \Phi = 1 and for a iso octane/1 hexene mixture containing 82% iso-octane…

Liquid-liquid equilibria phase diagrams have been determined for the systems: 2-methoxyphenol + n-decane, or + n-dodecane, or + n-tetradecane or + n-hexadecane and for 2-ethoxyphenol + n-octane, or + n-dodecane, or + n-tetradecane, or +…

Reactions between cyano radical and aromatic hydrocarbons are believed to be important pathways for the formation of aromatic nitriles in the interstellar medium (ISM) including those identified in the Taurus molecular cloud (TMC-1).…

星系天体物理 · 物理学 2023-06-28 Mengqi Wu , Xiaoqing Wu , Qifeng Hou , Jiangbin Huang , Dongfeng Zhao , Feng Zhang

We report the detection of the polycyclic aromatic hydrocarbon (PAH) 1H-cyclopent[cd]indene (c-C11H8) in TMC-1 with the QUI- JOTE line survey. We detected 22 independent lines corresponding to 88 rotational transitions with quantum numbers…

星系天体物理 · 物理学 2026-02-02 R. Fuentetaja , C. Cabezas , M. Agúndez , B. Tercero , N. Marcelino , P. de Vicente , J. Cernicharo