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Effect of Microwave Pulses on the Morphology and Development of Spark-Ignited Flame Kernel

Energies, 2021
Microwave-assisted spark ignition (MAI) is a promising way to enhance the ignition performance of engines under lean conditions. To understand the effect of microwave-induced flow during MAI, the development and morphology of spark-ignited methane-air ...
Xiaobei Cheng, Jyh-Yuan Chen, Zhaowen Wang   +2 more
exaly   +3 more sources

Acrocomia aculeata (Mbokaja) Kernel Oil Inhibits Herpes Simplex Virus 1 Replication and Promotes Cutaneous Wound Healing in Infected Mice [PDF]

Molecules
Background/Objectives: Herpes simplex virus type 1 (HSV-1) is a global and prevalent pathogen, presenting significant clinical challenges because of its recurring infections, the development of drug resistance and severe clinical complications.
Ana Belén Villalba Aucejo, María Laura Correa Quevedo, María Paz Cáceres-Villalba, Gladys Azucena Romero Saldivar, Antonia Galeano, Juan Daniel Rivaldi Chavez, Patricia Langjahr, Pablo H. Sotelo   +7 more
doaj   +2 more sources

Numerical Study of Hydrogen Auto-Ignition Process in an Isotropic and Anisotropic Turbulent Field

Energies, 2021
The physical mechanisms underlying the dynamics of the flame kernel in stationary isotropic and anisotropic turbulent field are studied using large eddy simulations (LES) combined with a pdf approach method for the combustion model closure.
Agnieszka Wawrzak, Artur Tyliszczak
doaj   +1 more source

Investigating the relationship between butanol molecular structure and combustion performance in an optical SIDI engine

Energy Conversion and Management: X, 2023
Butanol has a high potential as a renewable substitution for gasoline in spark-ignition direct-injection (SIDI) engines. Different butanol isomers showed various flame characteristics that are strongly related to their molecular structure. However, there
Weixuan Zhang, Mingli Cui, Bowei Yao, Mohamed Nour, Xuesong Li, Min Xu   +5 more
doaj   +1 more source

Shock Wave Propagation and Flame Kernel Morphology in Laser-Induced Plasma Ignition of CH₄/O₂/N₂ Mixture

Energies, 2021
The application of laser ignition in the aerospace field has promising prospects. Based on the constant volume combustion chamber, the laser ignition of CH4/O2/N2 mixture with different initial pressure, different laser energy, different equivalence ...
Junjie Zhang, Erjiang Hu, Qunfei Gao, Geyuan Yin, Zuohua Huang   +4 more
doaj   +1 more source

Lean Burn Flame Kernel Characterization for Different Spark Plug Designs and Orientations in an Optical GDI Engine

Energies, 2022
Lean burn spark ignition (SI) engines represent an effective solution for improving fuel economy and reducing exhaust emissions and can be implemented both in conventional and hybrid powertrains.
Giovanni Cecere, Adrian Irimescu, Simona Silvia Merola, Luciano Rolando, Federico Millo   +4 more
doaj   +1 more source

Effects of hydrogen addition and turbulence on ignition and meso-scale flames of propane mixtures

Journal of Thermal Science and Technology, 2022
This study has investigated experimentally the effects of hydrogen addition and turbulence on the ignition and the flame-kernel development characteristics in isotropic and homogeneous turbulence for propane mixtures.
Masaya NAKAHARA, Kodai TANIMOTO, Hisanobu KUDO, Yuta MARUYAMA, Fumiaki ABE   +4 more
doaj   +1 more source

Study of laminar flame speed measurement under high pressure condition using double kernel method by laser-induced breakdown ignition

Journal of Thermal Science and Technology, 2020
In order to understand turbulent combustion and its combustion characteristics, laminar flame speed is often used. Laminar flame speed plays an important role in turbulent combustion models used in engine combustion simulation.
Takehiko SEO, Hirotsugu KANEKO, Masato MIKAMI   +2 more
doaj   +1 more source

Effect of Airflow Temperature on the Formation of Initial Flame Kernel and the Propagation Characteristics of Flame

International Journal of Aerospace Engineering, 2018
Using liquid RP-3 aviation kerosene as the fuel to study, the effect of airflow temperature on the formation of initial flame kernel during the ignition of spray combustion and on the propagation characteristics of flame was investigated.
Jianzhong Li, Jian Chen, Li Yuan, Ge Hu
doaj   +1 more source

Generation and Propagation Characteristics of an Auto-Ignition Flame Kernel Caused by the Oblique Shock in a Supersonic Flow Regime

Energies, 2022
The auto-ignition caused by oblique shocks was investigated experimentally in a supersonic flow regime, with the incoming flow at a Mach number of 2.5.
Wenxiong Xi, Mengyao Xu, Chaoyang Liu, Jian Liu, Bengt Sunden   +4 more
doaj   +1 more source