Results 61 to 70 of about 609,223 (273)

Turbulent combustion of biomass syngas

Archives of Mechanics, 2012
Biomass syngas, a low-calorific gas continuously produced in the process of biomass pyrolysis and gasification, a relatively little-known fuel, can be used for heat production in an industrial plant. However, stringent emission norms have to be fulfilled
K. Kwiatkowski, K. Bajer, K. Wędołowski   +2 more
doaj   +1 more source

NOx Formation in MILD Combustion: Potential and Limitations of Existing Approaches in CFD

Frontiers in Mechanical Engineering, 2020
Emissions of nitrogen oxides (NOx) from combustion systems remain a lingering environmental issue, being these species either greenhouse gases or acid rain precursors.
Salvatore Iavarone, Alessandro Parente
doaj   +1 more source

Hydrogen‐Bond Enabled Phosphite Based Intrinsic Flame‐Retardant Solid‐Solid Phase Change Materials Using Catalyst/Solvent‐Free Multi‐Component Reaction for Battery Thermal Management

Advanced Science, EarlyView.
The phosphite group endows intrinsic flame retardancy, while the P = O bond enhances intermolecular interactions to realize solid‐solid phase transition. Battery thermal management tests show the materials extend the safe working time of lithium‐ion batteries by 200%. Cone calorimeter tests indicate a 14s delay in ignition time, and reductions of 37.6%,
Changhui Liu, Guangyuan Liang, Yuanzheng Liu, Jiantang Gao, Zeyang Li, Lin Huang, Jiateng Zhao, Junbing Xiao, Xiaoxing Zhong, Jun (Joelle) Wang   +9 more
wiley   +1 more source

Transfer learning with gradient-structural regularization for turbulent combustion under data scarcity

Energy and AI
Hydrogen-fueled turbulent flames involve strong temperature and species gradients, making the preservation of small-scale flow and reaction structures challenging for combustion-field prediction under limited training data.
Zhiwu Wang, Yu Wang, Man Zhang, Yinzhang Ma, Xin Wang, Sheng Meng, Zixu Zhang, Weifeng Qin   +7 more
doaj   +1 more source

Turbulent Combustion Modeling [PDF]

, 2011
Preface Table of Contents List of Contributors Part I Introductory Concepts: 1 The Role of Combustion Technology in the 21st Century, by R.W. Bilger 2 Turbulent Combustion: Concepts, Governing Equations and Modeling Strategies, by Tarek Echekki and Epaminondas Mastorakos Part II Recent Advances and Trends in Turbulent Combustion Models: 3 The Flamelet ...
openaire   +1 more source

China's Low‐Carbon Energy Transition Over the Past Two Decades: Experiences and Implications

Advanced Science, EarlyView.
China's low‐carbon energy transition features a brief decline and subsequent rebound in coal consumption, alongside the rapid expansion of renewable energy. This study develops a stage‐based analytical framework to explain this evolution from the perspectives of economic development, energy security, and environmental sustainability, revealing how ...
Yu Liu, Zhiyu Tian, Zhengxian Zhang, Xinbei Li   +3 more
wiley   +1 more source

Influences of Dual Air-Swirler Angles on Swirling Injection and Combustion of Kerosene-Air at a Supercritical Pressure

Aerospace Research Communications
High-pressure swirling injection and combustion are important phenomena in a modern gas turbine engine as its compression ratio has been significantly increased to improve thermodynamic efficiency.
Danyang Wang, Danyang Wang, Dongxin Huang, Jianguo Xu, Hua Meng, Hua Meng   +5 more
doaj   +1 more source

From Fluoride Removal to Interfacial Reactivity Enhancement: Functionalized La3+‐Crosslinked B/CuO Energetic Microspheres

Advanced Science, EarlyView.
A fluoride adsorption‐functionalization strategy directly couples fluoride wastewater remediation with combustion performance enhancement of B/CuO energetic microspheres. Fluoride captured from wastewater is retained within the microspheres without adsorbent regeneration or disposal, simultaneously achieving pollutant removal and enhanced energetic ...
Hongbiao Huo, Minghao Bao, Zhongbo Han, Wei Shi, Jianyong Xu, Pengfei Cui, Wenchao Zhang   +6 more
wiley   +1 more source

Hole‐Activated Lattice Oxygen Enables Pt‐Free Propane Dehydrogenation by Eliminating the Hydrogen Recombination Bottleneck

Angewandte Chemie, EarlyView.
Trace Mg doping into gallia–alumina generates hole‐type oxygen species that accelerate hydrogen recombination, eliminating the need for Pt promotion. The fully oxide‐based catalyst resists sintering under repeated regeneration, outperforming benchmark PtSn and CrOx catalysts with exceptional stability over 30 dehydrogenation–regeneration cycles ...
DongHwan Oh, Jaewoo Jeong, Susung Lee, Younghwan Park, Seunghyuck Chi, Yaejun Baik, Hyungjun Kim, Hyeyoung Shin, Minkee Choi   +8 more
wiley   +2 more sources

LES modeling gas particle dispersion and thermal characteristics in a reacting turbulent low

Physical Sciences and Technology
This paper presents the results of a 3D computer simulation of the combustion processes of gas particles (methane) in turbulent flow by applying numerical methods for calculating complex turbulent flows.
Zivile Rutkuniene
doaj   +1 more source