Results 41 to 50 of about 5,746 (302)

Improvement and validation of a thermodynamic S.I. engine simulation code [PDF]

, 2003
This study was concerned with improvement and validation of a thermodynamic spark ignition engine simulation code developed in Leeds. Experimental validation data were generated using a central ignition, disc-shaped combustion chamber variant of a ...
Abdi Aghdam, Ebrahim
core  

Auto-Ignition and Flame Stabilization of Hydrogen / Natural Gas / Nitrogen Jets in a Vitiated Cross-Flow at Elevated Pressure [PDF]

, 2013
The influence of natural gas (NG) on the auto-ignition behavior of hydrogen (H2)/nitrogen (N2) fuel jets injected into a vitiated cross-flow was studied at conditions relevant for practical combustion systems (p = 15 bar, Tcross-flow = 1173 K).
Aigner, Manfred, Griebel, Peter, Steinberg, Adam M., Fleck, Julia M., Fleck, Julia, Arndt, Christoph M.   +5 more
core   +2 more sources

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

Study on gas explosion propagation law in excavation roadway with TBM

Scientific Reports
Gas explosion is one of the five major hazards in mines, with about 36% of such incidents occurring in the excavation working face. Therefore, to investigate the impact of gas explosion propagation laws within excavation roadways, we conducted a ...
Ao Liu, Ke Gao, Runzhi Li, Linquan Tong, Yujiao Liu, Shengnan Li   +5 more
doaj   +1 more source

Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]

, 2008
In this thesis Direct Numerical Simulation (DNS) is used to investigate the development of turbulent premixed flame kernels during the early stages of growth typical of the period following spark ignition.
Dunstan, T. D.
core  

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Combustion analysis in a natural gas engine with pre-chamber by three-dimensional numerical simulation

Nihon Kikai Gakkai ronbunshu, 2015
Highly efficient natural gas engines have been widely used in wide range of sectors from industry and transportation. However, because combustion process in gas engines with a pre-chamber is very complicated, it is difficult to experimentally investigate
Satoshi HOKIMOTO, Tatsuya KUBOYAMA, Yasuo MORIYOSHI, Toshio YAMADA   +3 more
doaj   +1 more source

Flow and combustion in disc and pent-roof SI engines [PDF]

, 2006
Reported in this thesis is a study of combustion in a disc-shaped combustion chamber spark ignition engine, and in-cylinder flow and combustion in an idealised pent-roof spark ignition engine. Both engines were skip fired, to remove residuals and ensure
Murad, Ahmad E M A, Murad, Ahmad E. M. A
core  

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Effect of gas composition and initial turbulence on the propagation dynamics of premixed flames of hydrogen-blended natural gas fuel

Case Studies in Thermal Engineering
In order to reduce carbon emissions, the effects of gas composition and initial turbulence on the premixed flame dynamics of hydrogen-blended natural gas were investigated.
Peng Cai, Huan Liu, Yi Liu, Yonghao Zhou, Anfeng Yu, Zhe Yang   +5 more
doaj   +1 more source