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Minh Tien Nguyen, Van Van Luong, Quoc Thai Pham, Minh Tung Phung and Phu Nguu Do
A series of experiments were performed to investigate the effect of ignition energy (Eig) and hydrogen addition on the laminar burning velocity (Su0), ignition delay time (tdelay), and flame rising time (trising) of lean methane-air mixtures. The mixture...
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Konrad Malik, Mateusz Zbikowski and Andrzej Teodorczyk
The aim of the study was to develop deep neural network models for laminar burning velocity (LBV) calculations. The present study resulted in models for hydrogen?air and propane?air mixtures. An original data-preparation/data-generation algorithm was als...
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Xianfeng Chen, Yin Zhang and Ying Zhang
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame struct...
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Xianfeng Chen, Yin Zhang and Ying Zhang
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame struct...
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Nearchos Stylianidis, Ulugbek Azimov and Martin Birkett
This study investigated the effects of H2 and CH4 concentrations on the ignition delay time and laminar flame speed during the combustion of CH4/H2 and multicomponent syngas mixtures using a novel constructed reduced syngas chemical kinetics mechanism. T...
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This study investigated the effects of H2 and CH4 concentrations on the ignition delay time and laminar flame speed during the combustion of CH4/H2 and multicomponent syngas mixtures using a novel constructed r...
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Cheng Wang, Anthony Chun Yin Yuen, Qing Nian Chan, Timothy Bo Yuan Chen, Wei Yang, Sherman Chi-Pok Cheung and Guan Heng Yeoh
In this article, the evolution of in-flame soot species in a slow speed, buoyancy-driven diffusion flame is thoroughly studied with the implementation of the population balance approach in association with computational fluid dynamics (CFD) techniques. T...
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Aniket R. Khade, Vijaya D. Damodara and Daniel H. Chen
A fuel mixture of ammonia and natural gas as a low-carbon alternative for future power generation and transportation is an attractive option. In this work, a 50-species reduced mechanism, NH3NG, suitable for computational fluid dynamics simulations (CFD)...
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Jian Liu, Dingrui Zhang, Lingyun Hou, Jinhu Yang and Gang Xu
Aero-engine combustors may experience extreme low pressures in the case of an in-flight shutdown, which makes the study of aviation kerosene flame propagation characteristics at low pressures important. The present work examined flame propagation during ...
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Gordon Fru, Dominique Thévenin and Gábor Janiga
Direct Numerical Simulations (DNS) have been conducted to study the response of initially laminar spherical premixed methane?air flame kernels to successively higher turbulence intensities at five different equivalence ratios. The numerical experiments i...
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Giuseppe D?Alessio, Alberto Cuoci, Gianmarco Aversano, Mauro Bracconi, Alessandro Stagni and Alessandro Parente
The large number of species included in the detailed kinetic mechanisms represents a serious challenge for numerical simulations of reactive flows, as it can lead to large CPU times, even for relatively simple systems. One possible solution to mitigate t...
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Guido Saccone and Marco Marini
In the framework of the ?Multidisciplinary Optimization and Regulations for Low-boom and Environmentally Sustainable Supersonic aviation? project, pursued by a consortium of European government and academic institutions, coordinated by Politecnico di Tor...
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Eugenio Giacomazzi, Guido Troiani, Antonio Di Nardo, Giorgio Calchetti, Donato Cecere, Giuseppe Messina and Simone Carpenella
The aim of this article is to review hydrogen combustion applications within the energy transition framework. Hydrogen blends are also included, from the well-known hydrogen enriched natural gas (HENG) to the hydrogen and ammonia blends whose chemical ki...
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Ning Yang, Xiaowen Deng, Bin Liu, Liwei Li, Yuan Li, Peng Li, Miao Tang and Lin Wu
Ship emissions are one of the main sources of air pollution in port cities. The prosperous maritime trade has brought great harm to the air quality of port cities while promoting the development of the world economy. During the berthing process, ship aux...
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Rafal Slefarski, Joanna Jójka, Pawel Czyzewski, Michal Golebiewski, Radoslaw Jankowski, Jaroslaw Markowski and Aneta Magdziarz
There has been a gradual increase in the field of parts recovery from cars that are withdrawn from use. However, the disposal of automotive shredder residue (ASR) still remains a significant problem. ASR is refuse derived fuel (RDF), which contains mainl...
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Solmaz Nadiri, Paul Zimmermann, Laxmi Sane, Ravi Fernandes, Friedrich Dinkelacker and Bo Shu
To reach sustainable aviation, one approach is to use electro-fuels (e-fuels) within the gas turbine engines. E-fuels are CO2-neutral synthetic fuels which are produced employing electrical energy generated from renewable resources, where the carbon is t...
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Yang Li, Jin Wu, Qian Zhao, Yingjia Zhang and Zuohua Huang
The 1-methylallyl (C4H71-3) allylic radical is an important intermediate species in oxidation of linear C4 unsaturated hydrocarbons (1-butene, 2-butene, and 1,3-butadiene). This study reports the first high-level quantum chemical calculations for an undi...
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Haitao Lu, Fuqiang Liu, Yulan Wang, Xiongjie Fan, Jinhu Yang, Cunxi Liu and Gang Xu
Based on directed relation graph with error propagation methods, 39 species and 231 reactions skeletal mechanism were obtained from Mech_56.54 (113 species and 710 reactions) mechanism of methane. The ignition delay times, laminar flame propagation speed...
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Andreas Goldmann, Waldemar Sauter, Marcel Oettinger, Tim Kluge, Uwe Schröder, Joerg R. Seume, Jens Friedrichs and Friedrich Dinkelacker
With the growth of aviation traffic and the demand for emission reduction, alternative fuels like the so-called electrofuels could comprise a sustainable solution. Electrofuels are understood as those that use renewable energy for fuel synthesis and that...
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Mao Li, Yiheng Tong, Marcus Thern and Jens Klingmann
CO2 has a strong impact on both operability and emission behaviours in gas turbine combustors. In the present study, an atmospheric, preheated, swirl-stabilised optical gas turbine model combustor rig was employed. The primary objectives were to analyse ...
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