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Ghazanfar Mehdi, Maria Grazia De Giorgi, Sara Bonuso, Zubair Ali Shah, Giacomo Cinieri and Antonio Ficarella
This study investigates the kinetic modeling of CH4/H2/Air mixture with nanosecond pulse discharge (NSPD) by varying H2/CH4 ratios from 0 to 20% at ambient pressure and temperature. A validated version of the plasma and chemical kinetic mechanisms was us...
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Muhammad Azam Saeed, Lukasz Niedzwiecki, Muhammad Yousaf Arshad, Jan Skrinsky, Gordon E. Andrews and Herodotos N. Phylaktou
Design of explosion safety measures for torrefaction installations and design of pulverized-fired burners for biocoal.
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Yuriy Tsapko,?leksii Tsapko,Olga Bondarenko,Maryna Sukhanevych
Pág. 23 - 30
Our study into the process of reed ignition has established the mechanisms of heat transfer to a material, which makes it possible to influence this process. It has been proven that the process of ignition implies heating a material to the critical tempe...
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Atsushi Nishiyama, Minh Khoi Le, Takashi Furui and Yuji Ikeda
Among multiple factors that affect the quality of combustion, the intricate and complex interaction between in-cylinder flow/turbulent field and flame propagation is one of the most important. In this study, true simultaneous, crank-angle resolved imagin...
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Mehdi Bidabadi, Moein Mohammadi, Shafagh M. Bidokhti, Alireza K. Poorfar, Saeedreza Zadsirjan, Massoud Shariati
Pág. 85 - 92
In the present research, combustion of a quiescent coal char particle cloud has been studied in the media with spatially discrete sources by means of numerical approach. A thermal model based on diffusion-controlled regime of coal char particles has been...
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Mehdi Bidabadi, Milad Ramezanpour, Moein Mohammadi, Jalil Fereidooni
Pág. 157 - 164
This study investigates the important role of thermophoresis in flame propagation speed of nano-sized aluminum particles and water mixtures. To this aim, a one-dimensional steady state model was developed based on mass and energy conservation equations c...
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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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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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Jinrong Bao, Chenzhen Ji, Deng Pan, Chao Zong, Ziyang Zhang and Tong Zhu
The propagation mechanism of flow disturbance under acoustic excitations plays a crucial role in thermoacoustic instability, especially when considering the effect of non-premixed combustion on heat release due to reactant mixing and diffusion. This rela...
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Nan Meng and Feng Li
Combustion instability constitutes the primary loss source of combustion chambers, gas turbines, and aero engines, and it affects combustion performance or results in a sudden local oscillation. Therefore, this study investigated the factors affecting fl...
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Giuseppe Maria Coclite and Lorenzo di Ruvo
The Kuramoto?Sinelshchikov?Velarde equation describes the evolution of a phase turbulence in reaction-diffusion systems or the evolution of the plane flame propagation, taking into account the combined influence of diffusion and thermal conduction of the...
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Dingli Zhang, Guozhong Huang, Haoxuan Li, Qing Deng and Xuehong Gao
Electric vehicle (EV) fire accidents are caused by multiple factors, including the traffic conditions, parking environment and firefighting facilities, and are a typical public safety issue in cities. Owing to the lack of accurate and quick estimation me...
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Soung Woo Park, Jeong Hwan Kim and Jung Kwan Seo
Hydrogen is widely regarded as a key element of prospective energy solutions for alleviating environmental emission problems. However, hydrogen is classified as a high-risk gas because of its wide explosive range, high overpressure, low ignition energy, ...
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Palaiologos Palaiologou, Kostas Kalabokidis, Michelle A. Day, Alan A. Ager, Spyros Galatsidas and Lampros Papalampros
Predicting where the next large-scale wildfire event will occur can help fire management agencies better prepare for taking preventive actions and improving suppression efficiency. Wildfire simulations can be useful in estimating the spread and behavior ...
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Mélissa Férand, Thomas Livebardon, Stéphane Moreau and Marlène Sanjosé
A hybrid methodology combining a detailed Large Eddy Simulation of a combustion chamber sector, an analytical propagation model of the extracted acoustic and entropy waves at the combustor exit through the turbine stages, and a far-field acoustic propaga...
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Dunhui Xu, Fang Wang, Shengji Li, Xuefeng Huang, Heping Li and Yanhui Guo
To solve the problems associated with micron-sized aluminum (Al), including sintering, agglomeration, and slag deposition during the combustion of aluminized propellants, aluminum?lithium (Al-Li) alloy, prepared by introducing a small amount of Li (1.0 w...
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Wenxiong Xi, Hui Xu, Tianyang Dong, Zhiyong Lin and Jian Liu
To improve the flame propagation, combustion stability, and uniformity of the temperature field, multi-position injection is applied in a dual-mode combustor by controlling heat release in different locations. Using the chemical reaction of the finite ra...
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Viktor Volkov,Natalia Makoyed,Yuliia Loboda,Oksana Sokolova
Pág. 54 - 65
Theoretically, the combustion stability of solid fuel, which during the combustion process is decomposed according to the ?solid phase ? liquid phase ? gas? scheme, is investigated. The physical and mathematical models for t...
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Yuriy Tsapko,Vasyl Lomaha,?leksii Tsapko,Serhii Mazurchuk,Oleksandra Horbachova,Denys Zavialov
Pág. 55 - 60
An analysis of fire-retardant materials for wooden building structures is carried out and the need to develop reliable methods for studying the process of ignition and flame propagation on the surface of a building structure, necessary for creating new t...
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Kostyantyn Korytchenko,Pavel Krivosheyev,Dmytro Dubinin,Andrii Lisniak,Kostiantyn Afanasenko,Serhii Harbuz,Olga Buskin,Andriy Nikorchuk,Ivan Tsebriuk
Pág. 26 - 31
The paper reports a study into the initiation of detonation in pulse detonation engines. The chosen direction to resolve this issue is the use of detonation tubes with multifocal ignition. We applied two spark discharges as a source of ignition, which ig...
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