Numerical method to simulate detonative combustion of hydrogen-air mixture in a containment by D. Kim, J. Kim

“…A central-upwind scheme was adopted as a shock capturing scheme and a reduced chemical kinetic model was applied for combustion. The numerical method was validated by solving experimental cases and applied for understanding detonation shock behaviour in a generic containment.…”
Get full text

Performance and Emission Optimisation of an Ammonia/Hydrogen Fuelled Linear Joule Engine Generator by Gen Chen, Ugochukwu Ngwaka, Dawei Wu, Mingqiang Li

“…The impacts of hydrogen ratio, oxygen concentration, inlet pressure, and equivalence ratio of ammonia-air on nitric oxide (NO) formation and reduction are revealed using a detailed chemical kinetic analysis. Results indicated that rich combustion and elevated pressure are beneficial for NO reduction. …”
Get full text

Analysis of Transient Rivlin-Ericksen Fluid and Irreversibility of Exothermic Reactive Hydromagnetic Variable Viscosity by Rasaq Kareem, Salawu Olakunle, Yubin Yan

“…The non-Newtonian Hele-Shaw flow of Rivlin-Erickson fluid is driven by bimolecular chemical kinetic and unvarying pressure gradient. The reactive fluid is induced by periodic changes in magnetic field and time. …”
Get full text

Broadband Time-Resolved Absorption and Dispersion Spectroscopy of Methane and Ethane in a Plasma Using a Mid-Infrared Dual-Comb Spectrometer by Muhammad Ali Abbas, Luuk van Dijk, Khalil Eslami Jahromi, Mohammadreza Nematollahi, Frans J. M. Harren, Amir Khodabakhsh

“…The results demonstrate a new analytical approach for measuring fast molecular absorption and dispersion changes and monitoring the fast dynamics of chemical reactions over a broad wavelength range, which can be interesting for chemical kinetic research, particularly for the combustion and plasma analysis community.…”
Get full text

The silicothermic reduction of magnesium in flowing argon and numerical simulation of novel technology by Yusi Che, Chao Zhang, Jianxun Song, Xiaojia Shang, Xiping Chen, Jilin He

“…Firstly, the thermal gravimetric (TG) and derivative thermogravimetric (DTG) characteristic of briquettes prepared with calcined dolomite, ferrosilicon and fluorite were characterized by the thermogravimetric analyzer (TGA) at different heating rates. The intrinsic chemical kinetic mechanism was identified as a formal chemical reaction with the Nth order type which showed apparent activation energy E and reaction order n were 290.168 kJ mol−1 and 1.076, respectively. …”
Get full text

Pyrolysis of Cyclohexane and 1-Hexene at High Temperatures and Pressures—A Photoionization Mass Spectrometry Study by Tranter, Robert S., Banyon, Colin, Hawtof, Ryan E., Kim, Keunsoo

“…Such data are necessary for developing and testing chemical kinetic models. In this study, data relevant to cycloalkane pyrolysis were obtained from high repetition rate shock tube experiments coupled with synchrotron-based photoionization mass spectrometry diagnostics. …”
Get full text

High temperature air combustion: sustainable technology to low NOx formation by Hosseini, Seyed Ehsan, Abdul Wahid, Mazlan, Ali Abuelnuor, Abuelnuor Abdeen

“…This paper is concerned with NOx formation reduction in Hitac systems via physical and chemical analysis. Chemical kinetic, heat transfer concepts, simulation studies and experimental investigations have been employed to analyze NOx formation mitigation in Hitac method.…”

Effect of ethanol addition on the laminar burning velocity of gasoline surrogates with toluene by Shankar, V, Fang, X, Hinton, N, Davy, M, Leach, F

“…As equal volume mixtures were studied, the effect of these distinct behaviours was examined in comparison to chemical kinetic predictions and widely used mixing rules.…”

Measurements of lamir flame speeds of acetone/methane/air mixtures by Cheng, Tung Chong, Hochgreb, Simone

“…Experimental results are compared to numerically calculated values using a base methane chemical kinetic mechanism (GRI-Mech 3.0) extended with acetone oxidation and pyrolysis reactions from the literature. …”

Research Progress of Low-Carbon Cementitious Materials Based on Synergistic Industrial Wastes by Qian Li, Jiajie Li, Siqi Zhang, Xiaoyan Huang, Xue Wang, Ying Wang, Wen Ni

“…Currently, many similar chemical kinetic processes and mineralogical reaction processes of particle migration and rebinding exist in the hydration and hardening reactions, service processes and durability evolution of different industrial waste cementitious systems for low-carbon production. …”
Get full text

Numerical prediction of research octane numbers via a quasi-dimensional two-zone cylinder model by Samuel Schlichting, Torsten Methling, Patrick Oßwald, Julia Zinsmeister, Uwe Riedel, Markus Köhler

“…For this purpose, methods for evaluating the properties are needed.This work discusses the development of a simplified numerical quasi-dimensional two-zone cylinder model, combined with chemical kinetic models, for the estimation of octane numbers. …”
Get full text

Numerical simulation of diagenetic evolution and porosity prediction in eastern area of Wushi Sag by Li Yang, Lijuan Qin, Zhichun Peng, Yongnian Gan, Caixia Chao

“…The commercial oil fields discovered in the eastern area of Wushi Sag in recent years are mainly formed in a complex continental sedimentary environment, which was influenced by the tectonic movement, sedimentation and diagenesis.The reservoir in the oilfields of the study is characterized by a strong heterogeneity, complex reservoir seepage mechanism, which affects the development program Therefore, the analysis of the main controlling factors of the reservoir physical properties is extremely necessary, which can help the decision-makers to predict the sweet spot area theoretically and technically.In this paper, the method of numerical simulation of diagenetic evolution was adopted, in which the diagenesis index was obtained by the simulation of vitrinite reflectance, paleotemperature, smectite content in illite/smectite mixed layer, and quartz autogenesis increase based on the diagenetic environment parameter and chemical kinetic model.Moreover, the diagenetic stage and the lateral distribution of porosity were predicted based on the change of the diagenetic index.The results show that the diagenesis stage in the eastern area of Wushi Sag is the middle diagenesis stage A1-A2, and the diagenesis in the central sag is strong and gradually weaken.Combining the understanding of sedimentary and diagenesis, establishing the porosity prediction model and predicting it in horizon, the results indicate that: Following the source of sedimentary, the reservoir physical properties worsen with increasing burial depth, which is consistent with the change trend of diagenesis.…”
Get full text

Numerical Study on Flow and Heat Transfer of Supercritical Hydrocarbon Fuel in Curved Cooling Channel by Ying Zhang, Yong Cao, Keyu Gong, Shuyuan Liu, Limin Wang, Zhengchun Chen

“…Numerical simulations have been conducted to investigate the flow and heat transfer characteristics of China RP-3 aviation kerosene with pyrolysis in a 3D, 90° bend, square cooling channel around the cavity flame-holder of a scramjet. A chemical kinetic model, composed of 18 species and 24 reactions, was adopted to simulate the fuel pyrolysis process. …”
Get full text

Impact of Chemistry–Turbulence Interaction Modeling Approach on the CFD Simulations of Entrained Flow Coal Gasification by Jakub Mularski, Norbert Modliński

“…Additionally, ideal plug flow reactor study and perfectly stirred reactor study are carried out to estimate the accuracy of chosen simplified chemical kinetic schemes in comparison with two detailed mechanisms. …”
Get full text

Development of an infrared laser absorption sensor for non-intrusive gas temperature measurements by Kun Duan, Da-xin Wen, Yu Wang, Liu-hao Ma, Kin-Pang Cheong, Chao-kai Yuan, Wei Ren

“…A free-space optical setup was established to experimentally evaluate the sensor performance by measuring benchmark laminar premixed flames, which were compared with additional thermocouple measurements, chemical kinetic modeling and computational fluid dynamics simulations. …”
Get full text

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines by Wei Li, Junfang Ma, Tao Zhu, Haiqiao Wei, Jiaying Pan

“…A compressive flow solver was employed for Navier–Stoke equations, coupled with detailed sub-models and a chemical kinetic scheme. The combustion model was calibrated and could well predict the engine combustion and operating performance. …”
Get full text

Study of ammonia oxidation with ozone addition by Jie Jian, Hamid Hashemi, Hao Wu, Peter Glarborg

“…The effect of O3 addition on NH3 oxidation was investigated experimentally and through chemical kinetic modeling. Experiments were conducted in a laminar flow reactor at atmospheric pressure and temperatures in the range 225–1000 °C. …”
Get full text

Knowledge graph approach to combustion chemistry and interoperability by Farazi, Feroz, Salamanca, Maurin, Mosbach, Sebastian, Akroyd, Jethro, Eibeck, Andreas, Aditya, Leonardus Kevin, Chadzynski, Arkadiusz, Pan, Kang, Zhou, Xiaochi, Zhang, Shaocong, Lim, Mei Qi, Kraft, Markus

“…Central to this is OntoKin, an ontology we have developed for capturing both the content and the semantics of chemical kinetic reaction mechanisms. OntoKin is used to represent the example mechanisms from the literature in a knowledge graph, which itself is part of the existing, more general knowledge graph and ecosystem of autonomous software agents that are acting on it. …”
Get full text

Computationally numerical experiment of carbon species densities for thermal plasma dynamic by Saktioto, Toto, Farma, R., Irawan, D., Sufi, M., Ismail, F. D.

“…In this paper, we describe chemical kinetic models and their possibilities of carbon ion and neutral species production based on collisions and time dependence. …”

Predictive modeling of combustion processes by Sharma, Sandeep, Ph. D. Massachusetts Institute of Technology

Get full text