Results 21 to 30 of about 6,818 (260)

Effect of the Air Flow on the Combustion Process and Preheating Effect of the Intake Manifold Burner

Energies, 2022
Diesel engines show poor performance and high emissions under cold-start conditions. The intake manifold burner is an effective method to increase the intake air temperature and improve engine performance.
Zhishuang Li, Ziman Wang, Haoyang Mo, Han Wu   +3 more
doaj   +1 more source

Numerical Simulation Study on the Dynamics of Bluff-Body Flames under Oxygen-Lean Conditions

Energies, 2023
As modern aeroengine combustors advance towards high temperatures, afterburners are inevitably affected by diminished oxygen content in incoming flows, thus affecting combustion efficiency, instability, and flammability limits. In this study, the dynamic
Fuquan Deng, Minwei Zhao, Shunchuang Qin, Zhaokun Wang, Yongliang Xie, Hongtao Zheng, Xiao Liu, Feng Zhang   +7 more
doaj   +1 more source

Experiment investigation of the effects of hydrogen content on the combustion instability of methane/hydrogen lean premixed swirl flames under different acoustic frequency ranges

AIP Advances, 2019
Experimental study on combustion instability of lean premixed swirl flame was conducted for methane-hydrogen mixtures, and the influence mechanism of hydrogen content (0%, 10%, 20%, and 40%) on the combustion instability under different acoustic ...
Mingxiao Wang, Yingjie Zhong, Kai Deng
doaj   +1 more source

Analysis of Combustion Instability for a Natural Gas Engine with Lean-burn Conditions [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
To study the variation law of combustion instability of natural gas engine with lean-burn condition,experiments were carried out on a natural gas engine with six different excess air coefficients with the condition of25% load and 1 000 r / min.
DING Shunliang, GENG Haitang, GAO Jianshe, TAO Zheng, SONG Enzhe   +4 more
doaj   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

TWO-DIMENSIONAL FLAME INSTABILITY AND CONTROL OF BURNING IN THE HAlF-OPEN FIRECHAMBER

Автоматизация технологических и бизнес-процессов, 2016
The flame stability with regard to two-dimensional exponential perturbations both for the combustion in the half-open fire-chamber and the flame propagating in half-open channels is investigated.
V. E. Volkov
doaj   +1 more source

3D convolutional selective autoencoder for instability detection in combustion systems

Energy and AI, 2021
While analytical solutions of critical (phase) transitions in dynamical systems are abundant for simple nonlinear systems, such analysis remains intractable for real-life dynamical systems. A key example is thermoacoustic instability in combustion, where
Tryambak Gangopadhyay, Vikram Ramanan, Adedotun Akintayo, Paige K Boor, Soumalya Sarkar, Satyanarayanan R Chakravarthy, Soumik Sarkar   +6 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Prognostics of Combustion Instabilities from Hi-speed Flame Video using A Deep Convolutional Selective Autoencoder

International Journal of Prognostics and Health Management, 2016
The thermo-acoustic instabilities arising in combustion processes cause significant deterioration and safety issues in various human-engineered systems such as land and air based gas turbine engines.
Adedotun Akintayo, Kin Gwn Lore, Soumalya Sarkar, Soumik Sarkar   +3 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source