Results 51 to 60 of about 1,609 (208)
An iterative dynamic chemical stiffness removal method for reacting flow simulations
Propulsion and EnergyAn iterative dynamic chemical stiffness removal method (IDCSR) based on quasi-steady-state approximation (QSSA) is proposed. The IDCSR method is built on a previously developed non-iterative method which has proved to work well for small timestep sizes ...
Chao Xu, Tianfeng Lu
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Critical Temperature to Auto-Ignition of Leaves
Journal of the Japanese Institute of Landscape Architects, 1984 熱気流による樹木の発火危険を探るため, 発火時の葉温を既往の実験成果から整理するとともに, その検証のための実験を行った。既往の実験姓として空気温度の測定であったため藻内への熱の貯留から発火に至る経過がつかみ得なかった。本実験では藻の麺が発火する時点で近傍の遮敝板内の測点の値を記録することにより, 輻射熱の影響のない適正な葉温 (発火限界温度) を把握することができた。
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Polymer International, EarlyView.Halogen‐free biocomposite polystyrene foams were fabricated via pilot‐scale supercritical CO2 extrusion using expandable graphite, melamine polyphosphate, biochar, and recycled polymer. The optimized formulation exhibited refined cellular morphology, enhanced flame retardancy (limiting oxygen index of 25%, rapid self‐extinguishing), and improved ...
Apurv Gaidhani +4 more
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Energetic Materials FrontiersResearch into next-generation propellants with green fuel–oxidizer pairs to replace the currently used highly toxic hydrazine–N2O4 system has attracted widespread attention. Ionic liquids (ILs) and hydrogen peroxide have demonstrated their feasibility as
Si-cheng Liao +4 more
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Energies, 2019 Knock and super-knock are abnormal combustion phenomena in engines, however, they are hard to study comprehensively through optical experimental methods due to their inherent destructive nature.
Lijia Zhong, Changwen Liu
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Generative AI—the Transgression of Technology
Systems Research and Behavioral Science, EarlyView.ABSTRACT This article offers a systems‐theoretical analysis of generative artificial intelligence (GenAI) grounded in Niklas Luhmann's sociology of technology. It addresses a central conceptual problem: How GenAI can be understood within a theoretical framework that has traditionally defined technology as a means of stabilising action through causal ...
Jesper Tække
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Fuel Processing TechnologyIn order to achieve the carbon neutrality goal, it is urgent to improve the thermal efficiency of engines and the application of carbon neutral fuels. Due to the low emissions and renewability of alcohols, which are considered as potential alternative ...
Fangxi Xie +8 more
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Investigation of Auto-ignition of Several Single Fuels
MATEC Web of Conferences, 2014 HCCI operating principals have been widely investigated yet the uncontrollable combustion of HCCI is the major obstacle in its development. This paper is trying to increase the understanding on the auto-ignition and combustion process of several fuels to
Firmansyaha , A. Aziz A. Rashid.
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Energies, 2020 In high altitude regions, affected by the low-pressure and low-temperature atmosphere, diesel knock is likely to be encountered in heavy-duty engines operating at low-speed and high-load conditions.
Xiangting Wang +5 more
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The two-stage auto-ignition of hydrocarbons and "knock" [PDF]
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1938 Abstract The investigations of Townend and co-workers (1934) have revealed that the spontaneous ignition of higher paraffins in admixture with air consists in certain temperature ranges usually between 270 and 400°C., of a two-stage process, preceded by a time interval t1 prior to the appearance of a cool flame, and a subsequent ...
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