Results 21 to 30 of about 3,874 (192)

Development and Validation of a CFD Combustion Model for Natural Gas Engines Operating with Different Piston Bowls

Energies, 2023
Nowadays, an accurate and precise description of the combustion phase is essential in spark-ignition (SI) engines to drastically reduce pollutant and greenhouse gas (GHG) emissions and increase thermal efficiency.
Giovanni Gaetano Gianetti, Tommaso Lucchini, Gianluca D’Errico, Angelo Onorati, Patrik Soltic   +4 more
doaj   +1 more source

Research on the Ignition Process and Flame Stabilization of a Combination of Step and Strut: Experimental and Numerical Study

Energies, 2023
A combined application of step and strut was put forward to achieve reliable ignition and flame stabilization. In this work, the ignition process and temperature distribution have been tested, and a new reduction approach applied to jet fuel oxidation ...
Shilong Zhao, Hui Xiao, Yafan Li
doaj   +1 more source

Flame kernel development with radiofrequency oscillating plasma ignition

Plasma Sources Science and Technology, 2022
Abstract In this paper a radiofrequency oscillating plasma discharge is investigated under various initial pressures up to 5 atm in a constant-volume combustion chamber. The oscillating plasma is suppressed by elevated pressure, both in length and branch number. The ignition performance under elevated background pressure is investigated,
Xiao Yu, Linyan Wang, Shui Yu, Meiping Wang, Ming Zheng   +4 more
openaire   +1 more source

An optical investigation on arc shortening features and its impacts on ignition process with multiple discharging system

Case Studies in Thermal Engineering
Flame kernel generation is essential to the stability and efficiency of combustion in a spark engine. In this study, the initial process of flame kernel generation was studied in an optical spark engine. The engine was operated with the λ adjusted from 1.
Zhiqiang Li, Jing Qin, Yiqiang Pei, Qi Zhan, Yingbo Wang   +4 more
doaj   +1 more source

Optical Investigation of a Partial Fuel Stratification Strategy to Stabilize Overall Lean Operation of a DISI Engine Fueled with Gasoline and E30

Energies, 2021
This paper offers new insights into a partial fuel stratification (PFS) combustion strategy that has proven to be effective at stabilizing overall lean combustion in direct injection spark ignition engines.
Cinzia Tornatore, Magnus Sjöberg
doaj   +1 more source

Toward Nano‐Nutritional Medicine: A Remotely Activated Trans‐Vaccenic Acid‐Based Lipid Nanoparticles for Enhancing Immune Checkpoint Blockade Therapy

Advanced Science, EarlyView.
Eutectic mixtures from trans‐vaccenic acid (TVA) and stearic acid, which served as phase‐change material to encapsulate IR780, forming NIR‐responsive nanoparticles. IR780@TVA LNPs induce photothermal therapy and initiate adaptive anti‐tumor immunity.
Kang Liu, Yunlong Li, Hanmeng Liu, Peng Zhang, Mingjing Wang, Quanwei Sun, Wenshuo Yang, Zhengwei Song, Song Tan, Ye Yang, Peng She, Dengke Yin, Wei Shen   +12 more
wiley   +1 more source

Experimental study on the effect of discharge parameters of high-frequency nSDBD on the multi-point ignition characteristics of NH3/air mixture

Case Studies in Thermal Engineering
Multi-point ignition by high-frequency nanosecond surface dielectric barrier discharge (nSDBD) offers the potential to enhance the combustion speed of NH3/air mixtures.
Jie Tian, Lu Wang, Yongqi Wang, Wei Yin, Yong Xiong, Yong Cheng   +5 more
doaj   +1 more source

Guidelines for Detecting the Foodborne Antibiotic‐Resistant Bacteria

AgriFood: Journal of Agricultural Products for Food, EarlyView.
ABSTRACT Foodborne antibiotic‐resistant bacteria threaten global public health and the economic. Standardized detection methods are crucial for effective prevention and control. Researchers encounter difficulties in choosing suitable techniques due to the variety of available approaches and the intricate nature of resistance mechanisms.
Yuanye Zeng, Fengxia Yang
wiley   +1 more source

Numerical study of high-energy spark ignition characteristics in a scramjet combustor

Case Studies in Thermal Engineering
Reliable ignition is a fundamental prerequisite for the scramjet engines. In order to improve the reliability of ignition, further enhance the application of spark ignition in engineering, and improve the ignition ability in the field of supersonic ...
Ziyan Gao, Meng Zhang, Zhibo Zhang, Yun Wu, Xing Zheng, Huifeng Miao   +5 more
doaj   +1 more source

Detecting the Flame Front Evolution in Spark-Ignition Engine under Lean Condition Using the Mask R-CNN Approach

Vehicles, 2022
In the wake of previous works, the authors propose a new approach for the identification and evolution of the flame front in an optical SI engine.
Luca Petrucci, Federico Ricci, Roberto Martinelli, Francesco Mariani   +3 more
doaj   +1 more source